Log in

Relevant bibliographies by topics / Vinyl / Journal articles

To see the other types of publications on this topic, follow the link: Vinyl.

Journal articles on the topic 'Vinyl'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Vinyl.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Wibowo, Heru Budi. "ISOMERISASI POLIMER MELALUI REAKSI SAIN SAYEF UNTUK MENGUBAH KONFIGURASI HTPB (HYDROXYL TERMINATED POLYBUTADIENE) POLYMER ISOMERIZATION BY SAIN SAYEF REACTION TO MODIFY CONFIGURATION OF HTPB (HYDROXYL TERMINATED POLYBUTADIENE)." Jurnal Teknologi Dirgantara 14, no. 2 (July 21, 2017): 137. http://dx.doi.org/10.30536/j.jtd.2016.v14.a2387.

Full text

Abstract:

One of the problems in the synthesis of Hydroxyl Terminated Polybutadiene for propellant binders is the level of vinyl is high (up to 30%), while the desired product is 20%. Vinyl bond can be reduced if the chain can be broken with the addition of a hydroxyl group. The research objective is to reduce the amount of vinyl structure in HTPB with the addition of double bonds in the vinyl by applying Sayef Sain reaction. HTPB is reacted with concentrated hydrogen peroxide with the Sain Sayef catalyst in the 1 liter autoclave reactor with ethanol for 1-3 hours at 100° C. After being purified by extraction in hot water and drying, it is analyzed by an infrared spectrometer. The result shows that there is a change in the concentrations of vinyl within the polymers produced by observing the absorption of vinyl groups at a wavelength of 690cm-1. Optimal results obtained with vinyl content of 20% with a temperature of 100° C for 90 minutes. In general, the quality of HTPB can be increased by reducing the levels of vinyl which allowing the HTPB composition to have a vinyl content reduced to 19%. Abstrak:Salah satu permasalahan dalam sintesis Hydroxyl Terminated Polybutadiene untuk binder propelan adalah masih tingginya kadar vinil (sampai dengan 30%), sedangkan produk yang diinginkan adalah 20%. Ikatan vinil dapat direduksi jika dapat dipecah rantainya dengan adisi gugus hidroksil. Tujuan penelitian adalah mereduksi jumlah struktur vinil dalam HTPB dengan adisi ikatan rangkap dalam vinil dengan menerapkan reaksi Sain Sayef. HTPB direaksikan dengan hydrogen peroksida pekat dengan katalis Sain Sayef dalam reaktor autoklaf 1 liter dengan pelarut etanol selama 1-3 jam pada suhu 100 °C. Setelah dimurnikan dengan ekstraksi dalam air panas dan pengeringan dari air, dianalisis dengan spectrometer infra merah. Hasil pengujian menunjukkan bahwa terjadi perubahan konsentrasi kandungan vinil dalam polimer yang dihasilkan dengan pengamatan serapan gugus vinil pada panjang gelombang 690 cm-1. Hasil optimal diperoleh dengan kadar vinil 20% dengan suhu 100 °C selama 90 menit. Secara umum, kualitas HTPB dapat meningkat dengan mengurangi kadar vinil sehingga komposisi HTPB memiliki kadar vinil turun menjadi 19%.

APA, Harvard, Vancouver, ISO, and other styles

2

Karjala, Santhosh priya, Vijay Kumar Kuttynadar Rajammal, Suresh Gopi, Rajesh Ravi, Devanathan Chockalingam, and Meenakshi Chinathambi Muthukaruppan. "INFLUENCE OF IPNS (VINYLESTER/EPOXY/POLYURETHANE) ON THE MECHANICAL PROPERTIES OF GLASS/CARBON FIBER REINFORCED HYBRID COMPOSITES." IIUM Engineering Journal 23, no. 1 (January 4, 2022): 339–48. http://dx.doi.org/10.31436/iiumej.v23i1.2031.

Full text

Abstract:

The main objective of this study is to compare the interpenetrating polymer networks’ (IPNs) physical strengths with different variants of fibers. In this study, E-glass, carbon, and a combination of E-glass and carbon fiber (hybrid) have been taken as the reinforcement. Similarly, three combinations of the IPNs were chosen as the matrix material, namely epoxy / polyurethane (EP), vinyl ester / polyurethane (VP) and epoxy/vinyl ester (EV) as IPN blends. In order to thoroughly understand the physical characteristics of the combination of blends and fibers, nine variants (laminates) were fabricated: combinations of epoxy / polyurethane / E-glass (EPG), epoxy / polyurethane / carbon (EPC), epoxy / vinyl ester / glass / carbon (EPGC-hybrid), vinyl ester / polyurethane / glass (VPG), vinyl ester / polyurethane / carbon (VPC), vinyl ester / polyurethane / glass / carbon (VPGC), epoxy / vinyl ester / glass (EVG), epoxy / vinyl ester / carbon (EVC), and epoxy / vinyl ester / glass / carbon (EVGC-hybrid), all with help of a hand-layup technique. Furthermore, mechanical tests such as tensile, flexural, impact, and HDT (heat distortion temperature) were performed on all the variants as per the ASTM standards. Results shows that carbon fiber reinforcement with all IPN combinations has shown extraordinary performance (double fold) over the E-glass fiber reinforcement, whereas the hybrid (combination of E-glass/carbon) laminates have shown excellent characteristics over E-glass fiber reinforcement, irrespective of IPN matrix material. All the results were compared with each other and their corresponding variations were plotted as bar charts. ABSTRAK: Objektif utama kajian ini adalah bagi membandingkan kekuatan fizikal rangkaian polimer saling menusuk (IPN) dengan pelbagai jenis gentian berbeza. Kajian ini mengguna pakai gentian kaca-E, karbon dan gabungan kaca-E dan gentian karbon (hibrid) sebagai penguat. Begitu juga, tiga kombinasi IPN dipilih sebagai bahan matrik, iaitu epoksi / poliuretan (EP), ester vinil / poliuretan (VP) dan epoksi / ester vinil (EV) sebagai campuran IPN. Bagi tujuan memahami secara mendalam ciri-ciri fizikal gabungan campuran dan gentian, sembilan varian (lamina) dihasilkan, malaui kombinasi seperti epoksi / poliuretan / kaca-E (EPG), epoksi / poliuretan / karbon (EPC), epoksi / ester vinil / kaca / karbon (EPGC-hibrid), ester vinil / poliuretan / kaca (VPG), ester vinil / poliuretan / karbon (VPC), ester vinil / poliuretan / kaca / karbon (VPGC), epoksi / ester vinil / kaca (EVG), epoksi / ester vinil / karbon (EVC), epoksi / ester vinil / kaca / karbon (EVGC-hibrid) dengan teknik susun atur lapisan menggunakan tangan. Selain itu, ujian mekanikal seperti tegangan, lenturan, hentaman dan HDT (suhu kelenturan panas) dilakukan pada semua varian mengikut piawaian ASTM. Dapatan kajian menunjukkan bahawa, penguat gentian karbon dengan semua kombinasi IPN telah menunjukkan prestasi luar biasa (dua kali ganda) daripada penguat gentian kaca-E, manakala lamina hibrid (campuran kaca-E / karbon) telah menunjukkan ciri-ciri sangat baik berbanding penguat gentian kaca-E tanpa mengira bahan matrik IPN. Semua hasil dapatan dibandingkan antara satu sama lain dan padanan variasi diplot sebagai carta bar.

APA, Harvard, Vancouver, ISO, and other styles

3

Nurhikmawati, Agita Risma, and Wachidatul Linda Yuhanna. "PEMBERDAYAAN KELOMPOK KOPERASI WANITA PUTRI JATI EMAS MELALUI PEMBUATAN HOUSEWARE DARI LIMBAH VINIL." Panrita Abdi - Jurnal Pengabdian pada Masyarakat 4, no. 3 (June 24, 2020): 273. http://dx.doi.org/10.20956/pa.v4i3.7472.

Full text

Abstract:

The Empowerment of Women’s Cooperative Group Putri Jati Emas Through Houseware Making Made of Vinyl WasteAbstract. Vinyl waste is synthetic waste that is difficult to decompose. In Setono, there are 2 car upholstery and 1 shoe making industries which produce approximately 10 kg of vinyl waste per day. Thus, this study conducts vinyl waste processing by involving women's cooperative group, Putri Jati Emas. Vinyl waste is chosen since it can be made into high-selling houseware. The method in this activity is waste sorting, product designing, pattern making, printing, pattern cutting, sewing, sticking vinyl to houseware, and product finishing. In general, this activity went well and was conducive. In addition, the community is very enthusiastic and active in participating the program. In consequences, the participants’ skill level increases up to 80%. The houseware produced are trash bins, tissue containers, snack jars, biscuit tins, trays, and flower pots. In conclusion, this program is very relevant for improving the skills of the women in supporting family income.Keywords: Houseware, waste, vinyl.Abstrak. Limbah vinil merupakan limbah sintetis yang sulit terurai dan tidak dimanfaatkan. Di Desa Setono terdapat 2 industri jok mobil dan 1 industri pembuatan sepatu yang menghasilkan limbah vinil sebanyak 10 kg per hari. Pengolahan limbah vinil dilakukan dengan melibatkan kelompok koperasi wanita Putri Jati Emas. Limbah vinil dapat dikreasikan menjadi produk houseware berdaya jual tinggi. Metode dalam kegiatan ini adalah sortasi limbah, pemaparan desain, pembuatan pola, mencetak, menggunting pola, menjahit, menempel pada produk houseware dan finishing produk. Secara umum kegiatan ini berjalan lancar dan kondusif. Masyarakat antusias dalam mengikuti pelatihan. Tingkat keterampilan masyarakat sasaran sebanyak 80%. Produk yang dihasilkan berupa tempat sampah, tempat tissue, toples, kreasi kaleng biskuit, nampan dan pot bunga. Pelatihan kreasi limbah vinil menjadi houseware sangat relevan dan bermanfaat bagi peningkatan skill kelompok Koperasi Wanita Putri Jati Emas.Kata Kunci: Houseware, limbah, vinil.

APA, Harvard, Vancouver, ISO, and other styles

4

Nurlela, Nurlela, and Risnawati Risnawati. "PENGARUH RESIN TERHADAP PERUBAHAN WARNA PADA CAT TEMBOK." JURNAL SAINS NATURAL 5, no. 2 (December 16, 2019): 132. http://dx.doi.org/10.31938/jsn.v5i2.264.

Full text

Abstract:

The Influence of Resin against the Change of Color on the Wall PaintThe quality of the paint is determined by the resin used. Synthetic resins for polymer paints are made by combining several monomers to achieve various characteristics. The incorporation of some monomers such as polyvinyl acetate resin, acrylic vinyl resin and acrylic styrene resin which act as a binder can affect the quality of the paint especially the color change. The purpose of this study is to find the color changes that occur on the wall paint by using Poly Styrene Acrylic , Poly Vinyl Acetate and Poly Vinyl Acrylic. From the results of the measurement of color difference, significant color change occurs in the Poly Vinyl Acetate (PVAc) + Poly Vinyl Acrylic (PVA) and Poly Styrene Acrylic (PSA). The results of the quality test of the three resins based on pH test, scrub test and viscosity test, PSA has better quality compared to PVA + PVAc and PVA resin. From the color difference measurement test, some things need to be considered, are temperature, film thickness, substrate color/background color and measurement conditions (measured in wet sample/in plate/dry surface) and test on resin added additive according to the type of each resin.Keywords: Paint, Resin, Color Changes, Poly Vinyl Acetate, Poly Styrene.ABSTRAK Kualitas dari cat sangat ditentukan oleh resin yang digunakan. Resin sintetis untuk cat berupa polimer yang dibuat dengan menggabung beberapa monomer untuk mencapai berbagai karakteristik. Penggabungan dari beberapa monomer seperti resin poli vinil asetat, resin vinil akrilik dan resin stirena akrilik yang berfungsi sebagai pengikat mampu mempengaruhi kualitas cat terutama dari perubahan warna. Tujuan dari penelitian ini adalah untuk mengetahui perubahan warna yang terjadi pada cat tembok dengan menggunakan Poli Stirena Akrilik, Poli Vinil asetat dan Poli Vinil Akrilik. Dari hasil pengukuran perbedaan warna, perubahan warna cukup signifikan terjadi pada resin Poli vinil Asetat (PVAc) + Poli Vinil Akrilik (PVA) dan resin Poli Stirena Akrilik (PSA). Hasil uji Kualitas cat dari ketiga resin berdasarkan uji pH, uji scrub dan uji viscositas, PSA memiliki kualitas yang lebih baik dibandingkan dengan resin PVA+PVAc dan PVA. Dari pengujian pengukuran perbedaan warna, beberapa hal yang perlu di perhatikan, yaitu suhu, film thickness, warna substrat/background color dan kondisi pengukuran (diukur dalam keadaan wet sample/dalam bentuk plate/dry surface) dan pengujian terhadap resin yang ditambahkan zat aditif yang sesuai dengan tipe masing-masing resin tersebut.Kata Kunci: Cat, Resin, Perubahan Warna, Poli Vinil, Poli Stirena.

APA, Harvard, Vancouver, ISO, and other styles

5

Wang, Jun, Matthias Grünbacher, Simon Penner, Maged F. Bekheet, and Aleksander Gurlo. "Porous Silicon Oxycarbonitride Ceramics with Palladium and Pd2Si Nanoparticles for Dry Reforming of Methane." Polymers 14, no. 17 (August 25, 2022): 3470. http://dx.doi.org/10.3390/polym14173470.

Full text

Abstract:

Pd-containing precursor has been synthesized from palladium acetate and poly(vinly)silazane (Durazane 1800) in an ice bath under an argon atmosphere. The results of ATR-FTIR and NMR characterizations reveal the chemical reaction between palladium acetate and vinyl groups in poly(vinyl)silazane and the hydrolyzation reaction between –Si–H and –Si–CH=CH2 groups in poly(vinyl)silazane. The palladium nanoparticles are in situ formed in the synthesized precursors as confirmed by XRD, XPS, and TEM. Pd- and Pd2Si-containing SiOCN ceramic nanocomposites are obtained by pyrolysis of the synthesized precursors at 700 °C, 900 °C–1100 °C in an argon atmosphere. The pyrolyzed nanocomposites display good catalytic activity towards the dry reforming of methane. The sample pyrolyzed at 700 °C possesses the best catalytic performance, which can be attributed to the in situ formed palladium nanoparticles and high BET surface area of about 233 m2 g−1.

APA, Harvard, Vancouver, ISO, and other styles

6

Tius, Marcus A., and Joel K. Kawakami. "Vinyl Fluorides from Vinyl Stannanes." Synthetic Communications 22, no. 10 (May 1992): 1461–71. http://dx.doi.org/10.1080/00397919208021614.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Burns, Tim. "Vinyl news focus: Vinyl recycling." Journal of Vinyl and Additive Technology 11, no. 4 (December 2005): 135. http://dx.doi.org/10.1002/vnl.20051.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Thorwirth, Sven, Michael E. Harding, John B. Dudek, and Michael C. McCarthy. "Equilibrium molecular structures of vinyl carbon chains: Vinyl acetylene, vinyl diacetylene, and vinyl cyanide." Journal of Molecular Spectroscopy 350 (August 2018): 10–17. http://dx.doi.org/10.1016/j.jms.2018.05.001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Shaffer, O. L., V. Dimonie, M. S. El-Aasser, and J. W. Vanderhoff. "Morphology study of polyvinyl acetate latex by etching with PTA." Proceedings, annual meeting, Electron Microscopy Society of America 47 (August 6, 1989): 366–67. http://dx.doi.org/10.1017/s0424820100153804.

Full text

Abstract:

Transmission electron microscopy has been used extensively for studying the morphology of latex particles. Special techniques have been developed such as preferential staining with osmium tetroxide (OsO4), ruthenium tetroxide (RuO4), freeze fracturing, microtoming and negative staining with phosphotungstic acid (PTA). The purpose of this study is to develop a new technique using PTA as an etching agent for poly(vinyl acetate)(PVAc) latex.Several latexes were prepared by both batch and semicontinuous emulsion polymerization with poly(vinyl alcohol)(PVA) as a stabilizer. Three types of PVA were used, high molecular weight Elvanol 52-40(DuPont) and Vinol 540(Air Products), and low molecular weight Vinol 205(Air Products). All the alcohols were partially hydrolyzed. A PVAc soap free(no PVA) latex was also prepared. To etch the particles one drop of latex was diluted in approximately one ml of 2% aqueous PTA. The volume of latex used depended upon the solids content of the latex and the size of the particles. The PTA latex dispersions were sampled at several intervals.

APA, Harvard, Vancouver, ISO, and other styles

10

Markley, Thomas J., Robert K. Pinschmidt, and John W. Vanderhoff. "Grafting reactions of vinyl acetate onto poly[(vinyl alcohol)-co-(vinyl acetate)]." Journal of Polymer Science Part A: Polymer Chemistry 34, no. 13 (September 30, 1996): 2581–94. http://dx.doi.org/10.1002/(sici)1099-0518(19960930)34:13<2581::aid-pola4>3.0.co;2-v.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Liebowitz, Stephen M., and Howard J. Johnson. "Cyclopropanation of Vinyl Sulfides and Vinyl Sulfones." Synthetic Communications 16, no. 10 (August 1986): 1255–59. http://dx.doi.org/10.1080/00397918608056373.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Clayton, Russell, and Christopher A. Ramsden. "Routes toN-vinyl-nitroimidazoles andN-vinyl-deazapurines." Journal of Heterocyclic Chemistry 41, no. 5 (September 2004): 701–5. http://dx.doi.org/10.1002/jhet.5570410508.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Bellaart, A. C. "2-Vinyl- and 4-vinyl-1,3-dioxan." Recueil des Travaux Chimiques des Pays-Bas 81, no. 6 (September 2, 2010): 457–60. http://dx.doi.org/10.1002/recl.19620810602.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

TIUS, M. A., and J. K. KAWAKAMI. "ChemInform Abstract: Vinyl Fluorides from Vinyl Stannanes." ChemInform 23, no. 38 (August 21, 2010): no. http://dx.doi.org/10.1002/chin.199238092.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Burns, Tim. "Vinyl news focus. The paradox of vinyl." Journal of Vinyl and Additive Technology 10, no. 4 (December 2004): 157–58. http://dx.doi.org/10.1002/vnl.20023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

SATO, Yoshio, Hiroshi INOMAT, and Kunio ARAI. "Solubilities of fifteen organic substances in poly(vinyl chloride), poly(vinyl acetate), and vinyl chloride-vinyl acetate copolymer." KOBUNSHI RONBUNSHU 45, no. 3 (1988): 287–89. http://dx.doi.org/10.1295/koron.45.287.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Li, Deling, Liming Dong, Ying Chen, Congcong Luo, Jun Zhou, Guangtian Liu, and Haidong Ren. "Thermally Conductive and Antistatic Properties of Silicone Rubber Reinforced by the Modified Graphene Oxide." Polymers 14, no. 21 (November 3, 2022): 4703. http://dx.doi.org/10.3390/polym14214703.

Full text

Abstract:

Silicone rubber (SR)/vinyl-graphene oxide (vinyl-GO) nanocomposites were prepared through the hydrosilylation reaction of silicon hydrogen polydimethylsiloxane (H-PDMS) with vinyl polydimethylsiloxane (vinyl-PDMS), in which vinyl-GO was used as a nano filler. The thermally conductive and antistatic properties of the nanocomposites, and their tensile strength and thermal stability were evaluated. The thermally conductive and antistatic properties increased naturally when the nanocomposites had eight to nine parts of vinyl-GO. The addition of 9 parts of vinyl-GO increased the thermal conductivity to 0.44 from 0.17 W/m−1·K−1 of neat SR and the surface resistance value to 108 from 1014 Ω of neat SR. Vinyl-GO is effective in improving the tensile strength and toughness of the nanocomposites. The tensile strength and elongation at break of the nanocomposites were much higher than that of neat SR, especially for 10 parts of vinyl-GO in the nanocomposite, and the tensile strength was 1.84 MPa and the elongation at break was 314.1%. Additionally, compared with neat SR, the nanocomposites had a much higher thermal stability. For eight parts of vinyl-GO in the nanocomposites, H-PDMS with the selected silicon hydrogen content and vinyl-PDMS with the selected vinyl content could offer an appropriate cross-linking degree that suits the character of GO. When the nanocomposite had eight parts of vinyl-GO, its scanning electron microscope exhibited a monolayer GO with folded, twisted, and local surface folds. However, there was a certain amount of multilayer aggregation of GO for 10 parts of vinyl-GO in the nanocomposite.

APA, Harvard, Vancouver, ISO, and other styles

18

Horkay, Ferenc, Walther Burchard, Erik Geissler, and Anne Marie Hecht. "Thermodynamic properties of poly(vinyl alcohol) and poly(vinyl alcohol-vinyl acetate) hydrogels." Macromolecules 26, no. 6 (November 1993): 1296–303. http://dx.doi.org/10.1021/ma00058a017.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Grosse, Yann, Robert Baan, Kurt Straif, Béatrice Secretan, Fatiha El Ghissassi, Véronique Bouvard, Andrea Altieri, and Vincent Cogliano. "Carcinogenicity of 1,3-butadiene, ethylene oxide, vinyl chloride, vinyl fluoride, and vinyl bromide." Lancet Oncology 8, no. 8 (August 2007): 679–80. http://dx.doi.org/10.1016/s1470-2045(07)70235-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Bui, Nhi Dinh, Ngo Dinh Vu, Thao Thi Minh, Huong Thi Thanh Dam, Regina Romanovna Spiridonova, and Semenovich Alexandr Sirotkin. "Effect of Acetate Group Content in Ethylene-Vinyl Acetate Copolymer on Properties of Composite Based on Low Density Polyethylene and Polyamide-6." International Journal of Polymer Science 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/3149815.

Full text

Abstract:

The effect of the content of vinyl acetate groups in ethylene-vinyl acetate copolymer on the properties of polymer composite based on low density polyethylene and polyamide-6 was studied. Ethylene-vinyl acetate copolymer containing less vinyl acetate groups (10–14 wt.%) has a positive compatibility effect on polymer composite than ethylene-vinyl acetate copolymer containing 21–30 wt.% vinyl acetate groups. The polymer composites of LDPE, PA-6, and EVA containing 10–14 wt.% vinyl acetate groups possess the ability of biodegradation. The physical-mechanical properties of sample and molecular mass reduce after 28 days of incubation.

APA, Harvard, Vancouver, ISO, and other styles

21

Kotozaki, Manato, Soda Chanthamath, Takuji Fujii, Kazutaka Shibatomi, and Seiji Iwasa. "Highly enantioselective synthesis of trifluoromethyl cyclopropanes by using Ru(ii)–Pheox catalysts." Chemical Communications 54, no. 40 (2018): 5110–13. http://dx.doi.org/10.1039/c8cc02286k.

Full text

Abstract:

An asymmetric synthesis of various trifluoromethyl cyclopropanes from olefins, such as vinyl ferrocene, vinyl ethers, vinyl amines, vinyl carbamates and dienes, was achieved by using Ru(ii)–Pheox catalysts.

APA, Harvard, Vancouver, ISO, and other styles

22

Yang, Seong Baek, Mohammad Rezaul Karim, Jungeon Lee, Jeong Hyun Yeum, and Sabina Yeasmin. "Alkaline Treatment Variables to Characterize Poly(Vinyl Alcohol)/Poly(Vinyl Butyral/Vinyl Alcohol) Blend Films." Polymers 14, no. 18 (September 19, 2022): 3916. http://dx.doi.org/10.3390/polym14183916.

Full text

Abstract:

Novel poly(vinyl alcohol) (PVA)/poly(vinyl butyral–vinyl alcohol) (P(VB-VA)) films with improved hydrophobicity were prepared from poly(vinyl acetate) (PVAc)/poly(vinyl butyral) (PVB) blend films with various mass ratios by saponification in a heterogeneous medium. The successful conversion of PVAc to PVA and PVAc/PVB to PVA/P(VB-VA) films was confirmed by Fourier transform infrared spectrometry, X-ray diffraction, and proton nuclear magnetic resonance analysis. This study also shows that the degree of saponification (DS) depends on the saponification time. The maximum DS of 99.99% was obtained at 96 h of saponification for all films, and the presence of PVB did not affect the DS at saponification times of 48–96 h. The effects of the PVAc/PVB blend ratio before and after saponification were determined by contact angle measurement, and the hydrophobicity was found to increase in both cases with increasing PVB content. Additionally, all the films exhibited improved mechanical properties after saponification, and the treated films possessed an unusual porous and uneven surface, in contrast with the untreated films. The prepared films with improved hydrophobicity can be used for various applications, such as biomaterials, filters, and medical devices.

APA, Harvard, Vancouver, ISO, and other styles

23

Liu, Congrong, Jin Xu, and Gongde Wu. "Sodium iodide-mediated synthesis of vinyl sulfides and vinyl sulfones with solvent-controlled chemical selectivity." RSC Advances 11, no. 56 (2021): 35156–60. http://dx.doi.org/10.1039/d1ra07086j.

Full text

Abstract:

Solvent-controlled selectivity of the elimination/coupling reaction was realized for divergent synthesis of vinyl sulfides and vinyl sulfones. The described protocol is more convenient for the preparation of vinyl sulfide and vinyl sulfone related skeletons.

APA, Harvard, Vancouver, ISO, and other styles

24

Stiernet, Pierre, Christine Jérôme, and Antoine Debuigne. "Precision design of vinyl amine and vinyl alcohol-based copolymers via cobalt-mediated radical polymerization." Polymer Chemistry 10, no. 23 (2019): 3055–65. http://dx.doi.org/10.1039/c9py00020h.

Full text

Abstract:

Controlling the amount and the distribution of vinyl amine and vinyl alcohol units within a copolymer is attractive to modulate the properties of the parent major industrial homopolymers, i.e. poly(vinyl amine) and poly(vinyl alcohol).

APA, Harvard, Vancouver, ISO, and other styles

25

Mall, Andrew. "Vinyl Revival." Journal of Popular Music Studies 33, no. 3 (September 1, 2021): 73–77. http://dx.doi.org/10.1525/jpms.2021.33.3.73.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Nefedov, V. D., Evgeniya N. Sinotova, and V. P. Lebedev. "Vinyl cations." Russian Chemical Reviews 61, no. 3 (March 31, 1992): 283–96. http://dx.doi.org/10.1070/rc1992v061n03abeh000945.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Bolt, Hermann. "Vinyl acetate." Toxicology 226, no. 1 (September 2006): 19. http://dx.doi.org/10.1016/j.tox.2006.05.030.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Wong, Jessica H., Marilyn M. Olmstead, James C. Fettinger, and Jacquelyn Gervay-Hague. "Vinyl sulfones." Acta Crystallographica Section C Crystal Structure Communications 64, no. 3 (February 9, 2008): o132—o136. http://dx.doi.org/10.1107/s0108270108002692.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Hansell, Claire. "Vinyl destination." Nature Chemistry 6, no. 7 (June 20, 2014): 558. http://dx.doi.org/10.1038/nchem.1992.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Breckenridge, R. Saylor, and William Tsitsos. "Revitalizing Vinyl." Contexts 16, no. 4 (November 2017): 72–74. http://dx.doi.org/10.1177/1536504217742398.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Luttrell, William E., and Landon G. Sheaman. "Vinyl chloride." Journal of Chemical Health and Safety 19, no. 1 (January 2012): 30–31. http://dx.doi.org/10.1016/j.jchas.2011.11.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Luttrell, William E. "Vinyl acetate." Journal of Chemical Health and Safety 20, no. 6 (November 2013): 35–37. http://dx.doi.org/10.1016/j.jchas.2013.10.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Easter, M. D., and R. Von Burg. "Vinyl chloride." Journal of Applied Toxicology 14, no. 4 (July 1994): 301–7. http://dx.doi.org/10.1002/jat.2550140411.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Hu, Weidong, Jing Wu, Yunhong Jiao, Jixing Xie, Jinjie Chen, and Jianzhong Xu. "Synthesis of hollow tin dioxide and its improvement of flame retardancy and toughness on poly(vinyl chloride)." Journal of Fire Sciences 37, no. 1 (November 29, 2018): 67–80. http://dx.doi.org/10.1177/0734904118815056.

Full text

Abstract:

Hollow tin dioxide (S-SnO2) and solid SnO2 (B-SnO2) were prepared by a hydrothermal-calcination method with and without carbon spheres as templates, respectively. The flame retardancy, mechanical and thermal degradation properties, and char residues of the poly(vinyl chloride) samples treated with S-SnO2 and B-SnO2 were contrastively investigated by a limiting oxygen index instrument, cone calorimeter (Cone), tensile properties tests, and thermogravimetric analyzer. When the loading level of SnO2 was 2 phr, the limiting oxygen index of the poly(vinyl chloride) sample treated with S-SnO2 (poly(vinyl chloride)/S-SnO2) increased by 5.3% and 2%, and its elongation is 27.3% and 29.9% higher than that of the blank poly(vinyl chloride) and the poly(vinyl chloride) sample treated with B-SnO2 (poly(vinyl chloride)/B-SnO2), respectively. Compared with the blank poly(vinyl chloride) and the poly(vinyl chloride)/B-SnO2, the total heat release of poly(vinyl chloride)/S-SnO2 decreased by 24.5% and 9.4%, and the peak of smoke production rate decreased by 56.7% and 11.7%, respectively.

APA, Harvard, Vancouver, ISO, and other styles

35

Shenai, Bhaskar R., Belinda J. Lee, Alejandro Alvarez-Hernandez, Pek Y. Chong, Cory D. Emal, R. Jeffrey Neitz, William R. Roush, and Philip J. Rosenthal. "Structure-Activity Relationships for Inhibition of Cysteine Protease Activity and Development of Plasmodium falciparum by Peptidyl Vinyl Sulfones." Antimicrobial Agents and Chemotherapy 47, no. 1 (January 2003): 154–60. http://dx.doi.org/10.1128/aac.47.1.154-160.2003.

Full text

Abstract:

ABSTRACT The Plasmodium falciparum cysteine proteases falcipain-2 and falcipain-3 appear to be required for hemoglobin hydrolysis by intraerythrocytic malaria parasites. Previous studies showed that peptidyl vinyl sulfone inhibitors of falcipain-2 blocked the development of P. falciparum in culture and exerted antimalarial effects in vivo. We now report the structure-activity relationships for inhibition of falcipain-2, falcipain-3, and parasite development by 39 new vinyl sulfone, vinyl sulfonate ester, and vinyl sulfonamide cysteine protease inhibitors. Levels of inhibition of falcipain-2 and falcipain-3 were generally similar, and many potent compounds were identified. Optimal antimalarial compounds, which inhibited P. falciparum development at low nanomolar concentrations, were phenyl vinyl sulfones, vinyl sulfonate esters, and vinyl sulfonamides with P2 leucine moieties. Our results identify independent structural correlates of falcipain inhibition and antiparasitic activity and suggest that peptidyl vinyl sulfones have promise as antimalarial agents.

APA, Harvard, Vancouver, ISO, and other styles

36

Imai, Kiyokazu, Tomoo Shiomi, Yasuyuki Tezuka, and Keizo Takahashi. "Syntheses of Vinyl Sulfoxide/Vinyl Acetate-Type Copolymers." Journal of Macromolecular Science: Part A - Chemistry 22, no. 10 (October 1985): 1347–58. http://dx.doi.org/10.1080/00222338508063339.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Miyamoto, Masatoshi, Yoshiyuki Sano, Yoshiharu Kimura, and Takeo Saegusa. ""Spontaneous" vinyl polymerization of 2-vinyl-2-oxazolines." Macromolecules 18, no. 9 (September 1985): 1641–48. http://dx.doi.org/10.1021/ma00151a001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Denisova, Yu I., G. A. Shandryuk, L. B. Krentsel’, I. V. Blagodatskikh, A. S. Peregudov, A. D. Litmanovich, and Y. V. Kudryavtsev. "Thermal fractionation of vinyl acetate-vinyl alcohol copolymers." Polymer Science Series A 55, no. 6 (June 2013): 385–92. http://dx.doi.org/10.1134/s0965545x13060035.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Koerwitz, Frederick L., Gerald B. Hammond, and David F. Wiemer. "Synthesis of vinyl silanes from vinyl silane phosphates." Journal of Organic Chemistry 54, no. 4 (February 1989): 743–47. http://dx.doi.org/10.1021/jo00265a005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Croot, R. A., A. R. Goodall, and S. D. Lubetkin. "Adsorption properties of vinyl alcohol/vinyl acetate copolymers." Colloids and Surfaces 49 (1990): 351–62. http://dx.doi.org/10.1016/0166-6622(90)80116-l.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Singh, R., V. S. Panwar, P. C. Mehendru, and N. P. Gupta. "Thermal degradation in vinyl chloride: vinyl acetate copolymer." Journal of Materials Science Letters 9, no. 8 (August 1990): 932–34. http://dx.doi.org/10.1007/bf00722176.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Tarshiani, Y., and M. P. Dreyfuss. "Head-to-head vinyl chloride–vinyl acetate copolymer." Journal of Polymer Science Part A: Polymer Chemistry 28, no. 1 (January 15, 1990): 205–17. http://dx.doi.org/10.1002/pola.1990.080280115.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Mehendru, P. C., Ramadhar Singh, V. S. Panwar, and N. P. Gupta. "Hoppijg Transport and Relaxation Phenoiena in Poly(Vinyl Chloride: Vinyl Acetate: Vinyl Alcohol) Terpolymer." IEEE Transactions on Electrical Insulation EI-21, no. 3 (June 1986): 297–300. http://dx.doi.org/10.1109/tei.1986.349065.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Repollet-Pedrosa, Milton H., Ryan L. Weber, Andrew L. Schmitt, and Mahesh K. Mahanthappa. "Poly(vinyl acetate-b-vinyl alcohol) Surfactants Derived from Poly(vinyl ester) Block Copolymers." Macromolecules 43, no. 19 (October 12, 2010): 7900–7902. http://dx.doi.org/10.1021/ma1014116.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Cauich-Rodriguez, J. V., S. Deb, and R. Smith. "Characterization of hydrogel blends of poly(vinyl pyrrolidone) and poly(vinyl alcohol-vinyl acetate)." Journal of Materials Science: Materials in Medicine 7, no. 5 (May 1996): 269–72. http://dx.doi.org/10.1007/bf00058565.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Kubiak, Mary, Bernhardt Kressner, William Raynor, James Davis, and Rae Ellen Syverson. "Comparison of Stool Containment in Cloth and Single-Use Diapers Using a Simulated Infant Feces." Pediatrics 91, no. 3 (March 1, 1993): 632–36. http://dx.doi.org/10.1542/peds.91.3.632.

Full text

Abstract:

Single-use diapers and cloth diapers with vinyl pants were compared for their relative abilities to contain stool within the diaper. Artificial feces with carbon black as an additive allowed a quantitative measure of fecal containment by image analysis in 60 infants. This method showed complete containment of feces in the diaper in 50% of the single-use diapers whereas only 10% of the cloth diapers showed complete containment. In infants where the border of the vinýl pants was used as the boundary of containment with the cloth diapers, complete containment occurred only 33% of the time. Fluorescein dye ratings for containment/leakage in 69 infants showed that 83% of single-use diapers and 30% of the cloth diapers were rated as having no or minor leakage of feces. Cultures were taken of laundered vinyl pants that had previously been used over cloth diapers to determine microbial contamination. Thirty-nine percent of the pants contained Gram-negative, lactose-fermenting bacilli indicating fecal contamination. This study comparing single-use and cloth diapers for containment of artificial feces by use of image analysis and fluorescein dye ratings showed better containment by single-use diapers. The study also raises the question of possible spread of feces-borne pathogens by the vinyl pants used over cloth diapers, particularly in a day-care center.

APA, Harvard, Vancouver, ISO, and other styles

47

xiao, Yaqian, Binjie Xin, Zhuoming Chen, Lantian Lin, Yan Liu, and Zelin Hu. "Enhanced thermal properties of graphene-based poly (vinyl chloride) composites." Journal of Industrial Textiles 48, no. 8 (February 28, 2018): 1348–63. http://dx.doi.org/10.1177/1528083718760805.

Full text

Abstract:

Poly (vinyl chloride)/graphene composites with different graphene concentrations were prepared by wet spinning and spin-coating methods. The thermal properties of the poly (vinyl chloride)/graphene composites are investigated through the analysis of the activation energy by using Kissinger and Friedman-Reich-Levi methods. The activation energy of poly (vinyl chloride)/graphene composites obtained by the two methods is consistent and it can be estimated from the non-isothermal kinetic results. In addition, the activation energy value of poly (vinyl chloride)/graphene composites is higher than that of the pure poly (vinyl chloride) fiber, indicating that the addition of graphene can significantly improve the thermal stability of poly (vinyl chloride). Moreover, the activation energy values of 9 wt% poly (vinyl chloride)/graphene composite obtained by Kissinger and Friedman-Reich-Levi methods are highest at 114.90 kJ/mol and 145.00 kJ/mol, respectively, and the result reveals that poly (vinyl chloride)/graphene composite with 9 wt% concentration of graphene has the best thermal stabilities. The prepared graphene-based poly (vinyl chloride) composites with good thermal properties have a promising application in the thermal protective materials.

APA, Harvard, Vancouver, ISO, and other styles

48

Sun, Hong Qiang, and Xiao Qing Wu. "Study of Wettability of Vinyl Resin on Carbon Fiber." Applied Mechanics and Materials 217-219 (November 2012): 157–60. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.157.

Full text

Abstract:

The tensile performance of the vinyl resin casting body, epoxy resin casting body, carbon fiber(CF) reinforced vinyl composites and CF/epoxy composites has been presented. The morphology of tensile fracture surface of CF/epoxy and CF/vinyl has been compared, and the interface adhesion has been analysed. The results show the tensile strength for vinyl resin casting body is lower than epoxy resin casting body’s, the tensile modulus of them are close. But the tensile strength and modulus of CF/vinyl composites are both close to CF/epoxy composites. And the vinyl has the better interface adhesion and wettability on CF than epoxy.

APA, Harvard, Vancouver, ISO, and other styles

49

Kim, Young Hun, Kook Bae Do, Jae Young Choi, Mohammad Mahbub Rabbani, Sang Ik Han, and Jeong Hyun Yeum. "Electrospinning Fabrication of Poly(vinyl alcohol)/TiO2Nanofibers." Textile Coloration and Finishing 25, no. 2 (June 27, 2013): 118–25. http://dx.doi.org/10.5764/tcf.2013.25.2.118.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Dong, Bin, Xiao Li Wang, and Feng Quan Liu. "Synthesis and Characterization of Vinyl Substituted 2,2-Bisferrocenylpropane and Corresponding Polymers." Advanced Materials Research 798-799 (September 2013): 112–15. http://dx.doi.org/10.4028/www.scientific.net/amr.798-799.112.

Full text

Abstract:

The homopolymer of 6-vinyl bisferrocenylpropane and copolymer of 6-vinyl bisferrocenylpropane and 6,6'-divinyl bisferrocenylpropane were obtained from ferrocene and acetone via a series of reactions. The monomers and polymers were characterized by elemental analyses, IR spectra and IHNMR. The thermal stabilities of the polymers were studied through DTA-TG. The results show that the solubility of the copolymer of 6-vinyl bisferrocenylpropane and 6,6'-divinyl bisferrocenylpropane is very poor and its thermal stability is obviously higher than the homopolymer of 6-vinyl bisferrocenylpropane. The reason for it is that the monomer of 6,6'-divinyl bisferrocenylpropane has two vinyl groups, so the grafting degree of the corresponding polymer is much larger than the homopolymer of 6-vinyl bisferrocenylpropane.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!