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Journal articles on the topic 'Octadecyl methacrylate'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Duan, Jiufang, and Jianxin Jiang. "Structure and Properties of Hydrophobic Aggregation Hydrogel with Chemical Sensitive Switch." International Journal of Polymer Science 2017 (2017): 1–5. http://dx.doi.org/10.1155/2017/9123248.

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Hydrogels with chemical sensitive switch have control release properties in special environments. A series of polyacrylamide-octadecyl methacrylate hydrogels crosslinked by N,N′-bis (acryloyl) cystamine were synthesized as potential chemical sensitive system. When this hydrogel encounters dithiothreitol it can change its quality. The properties of the hydrogels were characterized by infrared spectroscopy, contact angle, and scanning electron microscopy. The water absorption of the hydrogel has the maximum value of 475%, when the content of octadecyl methacrylate is 5 wt%. The amount of weight loss was changed from 34.6% to 17.2%, as the content of octadecyl methacrylate increased from 3 wt% to 9.4 wt%. At the same time, the stress of the hydrogel decreased from 67.01% to 47.61%; the strength of the hydrogel reaches to the maximum 0.367 Mpa at 7 wt% octadecyl methacrylate. The increasing content of octadecyl methacrylate from 3 wt% to 9.4 wt% can enhance the hydrophobicity of the hydrogel; the contact angle of water to hydrogel changed from 14.10° to 19.62°. This hydrogel has the porous structure which permits loading of oils into the gel matrix. The functionalities of the hydrogel make it have more widely potential applications in chemical sensitive response materials.

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2

Monaghan, O. R., P. H. H. Bomans, N. A. J. M. Sommerdijk, and S. J. Holder. "Controlling the melting transition of semi-crystalline self-assembled block copolymer aggregates: controlling release rates of ibuprofen." Polymer Chemistry 8, no. 35 (2017): 5303–16. http://dx.doi.org/10.1039/c7py01170a.

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3

Jukić, Ante, Marko Rogošić, Elvira Vidović, and Zvonimir Janović. "Terpolymerization kinetics of methyl methacrylate or styrene/dodecyl methacrylate/octadecyl methacrylate systems." Polymer International 56, no. 1 (2006): 112–20. http://dx.doi.org/10.1002/pi.2125.

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4

Goswami, Prodip K., Monsum Kashyap, Pranjal P. Das, Prakash J. Saikia, and Jyotirekha G. Handique. "Poly(Glycidyl Methacrylate-co-Octadecyl Methacrylate) particles by dispersion radical copolymerization." Journal of Dispersion Science and Technology 41, no. 12 (July 2, 2019): 1768–76. http://dx.doi.org/10.1080/01932691.2019.1635026.

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5

Tsujimoto, Hiroki, and Masakazu Yoshikawa. "Polymeric pseudo-liquid membranes from poly(octadecyl methacrylate)." Journal of Membrane Science 445 (October 2013): 8–14. http://dx.doi.org/10.1016/j.memsci.2013.05.039.

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6

Ahmed, Mohammad R., Abdul Halim A.-K. Mohammed, and Maysoon A.hamad. "Synthesis, Characterization and Performance Evaluation of Poly Octadecyl Methacrylate and Poly Octadecyl Methacrylate-CoMethylmethacrylate as an Additive for Lubricating Oil." IOSR Journal of Applied Chemistry 10, no. 04 (April 2017): 50–58. http://dx.doi.org/10.9790/5736-1004015058.

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7

Jian, Yu, Yong He, Jie Wang, Bingbing Xu, Wantai Yang, and Jun Nie. "Rapid photopolymerization of octadecyl methacrylate in the solid state." New J. Chem. 37, no. 2 (2013): 444–50. http://dx.doi.org/10.1039/c2nj40557a.

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8

Meng, Jie-yun, Xiao-fen Tang, Zhi-li Zhang, Xing-xiang Zhang, and Hai-feng Shi. "Fabrication and properties of poly(polyethylene glycol octadecyl ether methacrylate)." Thermochimica Acta 574 (December 2013): 116–20. http://dx.doi.org/10.1016/j.tca.2013.10.011.

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9

Aguiar, Valeska Soares, and Carla Beatriz Grespan Bottoli. "Repeatability of Octadecyl Methacrylate-Based Monolithic Columns for Capillary Electrochromatography." Instrumentation Science & Technology 43, no. 2 (January 20, 2015): 139–55. http://dx.doi.org/10.1080/10739149.2014.954126.

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10

Mumby, Stephen J., J. D. Swalen, and J. F. Rabolt. "Orientation of poly(octadecyl methacrylate) and poly(octadecyl acrylate) in Langmuir-Blodgett monolayers investigated by polarized infrared spectroscopy." Macromolecules 19, no. 4 (July 1986): 1054–59. http://dx.doi.org/10.1021/ma00158a020.

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11

Tang, Xiaofen, Wei Li, Haifeng Shi, Xuechen Wang, Jianping Wang, and Xingxiang Zhang. "Fabrication, characterization, and supercooling suppression of nanoencapsulated n-octadecane with methyl methacrylate–octadecyl methacrylate copolymer shell." Colloid and Polymer Science 291, no. 7 (January 24, 2013): 1705–12. http://dx.doi.org/10.1007/s00396-013-2905-1.

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12

Miller, Charles E., and Tyze-Kuan Yin. "Near-infrared reflectance analysis of poly(octadecyl methacrylate) adsorbed on alumina." Journal of Materials Science Letters 8, no. 4 (April 1989): 467–69. http://dx.doi.org/10.1007/bf00720708.

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13

Duan, Jiufang, Yuxue Gao, Yirong Huang, Lin Li, and Jianxin Jiang. "Preparation and characterization of a high strength self-repairing galactomannan hydrogel." BioResources 14, no. 4 (October 28, 2019): 9853–66. http://dx.doi.org/10.15376/biores.14.4.9853-9866.

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Autonomous self-repairing properties can prolong the service life of materials. In this paper, galactomannan hydrogel with high mechanical strength was prepared by graft copolymerization of galactomannan with acrylamide and octadecyl methacrylate in aqueous solution. The microstructure, water absorption property, self-healing behavior, and mechanical properties of the hydrogels were investigated using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM), etc. The galactomannan hydrogel had the highest tensile strength of 49 KPa and strain of 3000%. The water absorption reached 2340%, and the removal rate of methylene blue was more than 80%. Galactomannan hydrogels demonstrated significant self-healing properties. The cut hydrogel was quite effective in self-repairing in a few minutes, and the self-repairing strength increased with increasing contact time of hydrogel cut surfaces. The healing efficiency of fracture strain could reach 92.7% of the original sample in 10 h. The maximum water absorption of hydrogel reached 2340%. The maximum removal rate of methylene blue by hydrogel reached 80.5%, and the maximum adsorption capacity was 19.3 mg/g. The novelty of the work lies in octadecyl methacrylate being used for galactomannan cross-linking with the ability to self-repair after fracture. The galactomannan self-healing hydrogel has potential in water treatment and sealing technology.

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14

Batool, Asma, Asghari Gul, Saira Arif, and Mohammad Aslam Khan. "Stimulated Raman Scattering During Pulsed Laser-Induced Co-polymerization of n-Butyl Methacrylate and n-Octadecyl Methacrylate." Arabian Journal for Science and Engineering 44, no. 1 (November 22, 2018): 655–62. http://dx.doi.org/10.1007/s13369-018-3635-y.

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15

Yu, Yang, Günter Dlubek, Reinhard Krause-Rehberg, Mario Beiner, and Elke Hempel. "Phase Transitions in Polymers Containing Long Self-Assembled CH₂ Sequences in the Side Chain: A Positron Lifetime Study." Materials Science Forum 666 (December 2010): 71–74. http://dx.doi.org/10.4028/www.scientific.net/msf.666.71.

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Positron lifetime annihilation spectroscopy (PALS) was used to study the temperature- dependence of sub-nanometer size local free volumes in two atactic poly(n-octadecyl methacrylate)s (PODMA) with different molecular weight. These materials exhibit short range layered structure with a self-assembly and crystallization of side chains. From the ortho-positronium (o-Ps) lifetime the size of free volume holes and its distribution are calculated. At a temperature Tm=311 ± 5 K, the mean hole volume <vh> shows an abrupt and strong increase from 0.15 nm3 to 0.2 nm3, which comes from the melting of side-chains. The reverse effect, attributed to side chain crystallization, was observed during cooling the samples at slightly lower temperatures. The lifetime result of PODMA is compared with semifluorinated polyesters in which the side chain has an oxydecylperfluorodecyl structure (-O-(CH2)10-(CF2)9-CF3). Long chain polymers without side-chains such as polyethylene and short side-chain poly(n-alkyl methacrylate)s: poly(methyl methacrylate) (PMMA) and poly(n-hexyl methacrylate) (PHMA) are also compared with these polymers.

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16

Tang, Xiaofen, Wei Li, Haifeng Shi, Jianping Wang, Na Han, and Xingxiang Zhang. "Fabrication, Characterization and Suppression of Supercooling in Microencapsulated n-Octadecane with Methyl Methacrylate-Octadecyl Methacrylate Copolymer as Shell." Science of Advanced Materials 6, no. 1 (January 1, 2014): 120–27. http://dx.doi.org/10.1166/sam.2014.1690.

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17

Hempel, E., H. Budde, S. Höring, and M. Beiner. "On the crystallization behavior of frustrated alkyl groups in poly(n-octadecyl methacrylate)." Journal of Non-Crystalline Solids 352, no. 42-49 (November 2006): 5013–20. http://dx.doi.org/10.1016/j.jnoncrysol.2006.01.131.

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18

G., Baskar, Ramya S., and Mandal A. "Synthesis and solution properties of comblike polymers from octadecyl methacrylate and acrylic acid." Colloid & Polymer Science 280, no. 10 (October 1, 2002): 886–91. http://dx.doi.org/10.1007/s00396-002-0697-9.

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19

Soonthorntantikul, Wasura, Natchanun Leepipatpiboon, Tohru Ikegami, Nobuo Tanaka, and Thumnoon Nhujak. "Selectivity comparisons of monolithic silica capillary columns modified with poly(octadecyl methacrylate) and octadecyl moieties for halogenated compounds in reversed-phase liquid chromatography." Journal of Chromatography A 1216, no. 31 (July 2009): 5868–74. http://dx.doi.org/10.1016/j.chroma.2009.06.030.

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20

Joseph Milton Gaspar, L., Geetha Baskar, and Asit Baran Mandal. "Solution structure of a modified comb-like polymer from octadecyl methacrylate and acrylic acid." Chemical Physics Letters 348, no. 5-6 (November 2001): 395–402. http://dx.doi.org/10.1016/s0009-2614(01)01100-9.

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21

Darvishi, Atefeh, Mohammad J. Zohuriaan Mehr, Gholam Bagheri Marandi, Kourosh Kabiri, Hossein Bouhendi, and Hadi Bakhshi. "Copolymers of glycidyl methacrylate and octadecyl acrylate: synthesis, characterization, swelling properties, and reactivity ratios." Designed Monomers and Polymers 16, no. 1 (September 12, 2012): 79–88. http://dx.doi.org/10.1080/15685551.2012.705493.

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22

Müller, G., and C. Riedel. "Langmuir−Blodgett Deposition of Octadecyl Methacrylate Monolayers on Glass and Their E-Beam Polymerization." Langmuir 12, no. 10 (January 1996): 2556–60. http://dx.doi.org/10.1021/la950858f.

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23

Fischer, Marion, Catarina P. Baptista, Inês C. Gonçalves, Buddy D. Ratner, Claudia Sperling, Carsten Werner, Cristina L. Martins, and Mário A. Barbosa. "The effect of octadecyl chain immobilization on the hemocompatibility of poly (2-hydroxyethyl methacrylate)." Biomaterials 33, no. 31 (November 2012): 7677–85. http://dx.doi.org/10.1016/j.biomaterials.2012.07.007.

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24

Tang, Xiao Fen, Wei Li, and Xing Xiang Zhang. "New Approach to Fabricate Microcapsules with Comb-Like Copolymer Shell by Phase Separation Method." Advanced Materials Research 860-863 (December 2013): 577–81. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.577.

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Microcapsules containingn-octadecane (MicroC18) withn-octadecyl methacrylate (ODMA)-methacrylic acid (MAA) copolymer shell were fabricated through phase separation method, in which the shell-forming copolymers synthesized by free-radical solution polymerization. Meanwhile, theses copolymers were employed as the surfactant during microencapsulation. The crystallization temperature and crystallinity degree of comb-like copolymer display a gradual decrease with an increase the molar ratio of MAA. MicroC18 with spherical profiles and the diameter ranging from 3 to 20 μm were fabricated. In addition, the system pH value plays an important role in the formation process of microcapsules and the optimum value of pH in the range of 8.5-10.5.

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25

Hoshina, Hiroyuki, Jinhua Chen, Haruyo Amada, and Noriaki Seko. "Chain Entanglement of 2-Ethylhexyl Hydrogen-2-Ethylhexylphosphonate into Methacrylate-Grafted Nonwoven Fabrics for Applications in Separation and Recovery of Dy (III) and Nd (III) from Aqueous Solution." Polymers 12, no. 11 (November 11, 2020): 2656. http://dx.doi.org/10.3390/polym12112656.

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A nonwoven fabric adsorbent loaded with 2-ethylhexyl hydrogen-2-ethylhexylphosphonate (EHEP) was developed for the separation and recovery of dysprosium (Dy) and neodymium (Nd) from an aqueous solution. The adsorbent was prepared by the radiation-induced graft polymerization of a methacrylate monomer with a long alkyl chain onto a nonwoven fabric and the subsequent loading of EHEP by hydrophobic interaction and chain entanglement between the alkyl chains. The adsorbent was evaluated by batch and column tests with a Dy (III) and Nd (III) aqueous solution. In the batch tests, the adsorbent showed high Dy (III) adsorptivity close to 25.0 mg/g but low Nd (III) adsorptivity below 1.0 mg/g, indicating that the adsorbent had high selective adsorption. In particular, the octadecyl methacrylate (OMA)-adsorbent showed adsorption stability in repeated tests. In the column tests, the OMA-adsorbent was also stable and showed high Dy (III) adsorptivity and high selectivity in repeated adsorption–elution circle tests. This result suggested that the OMA-adsorbent may be a promising adsorbent for the separation and recovery of Dy (III) and Nd (III) ions.

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26

Hwang, Taewon, Hee Dong Han, Suk Hyun Jung, Hasoo Seong, Sun Hang Cho, and Byung Cheol Shin. "Enhanced Stability of Comb-Type Copolymer-Incorporated Liposomes." Key Engineering Materials 342-343 (July 2007): 733–36. http://dx.doi.org/10.4028/www.scientific.net/kem.342-343.733.

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To enhance the stability of liposomes in systemic circulation, a number of liposomes modified with hydrophilic polymer such as poly(ethylene oxide) have been developed. In this study, the comb-type copolymer was prepared as a surface modifier of liposome and the polymer was anchored onto the lipid bi-layer via hydrophobic interaction between aliphatic chain of phospholipids and hydrophobic chain of the polymer. The comb-type copolymer was synthesized by radical polymerization of octadecyl acrylate (ODA), hydroxy-poly-(oxyethylene) methacrylate (HPOEM) and 2-Hydroxyethyl methacrylate (HEMA). The structure of the comb-type copolymer was confirmed by 1H-NMR analysis. The stability of the comb-type copolymer-incorporated liposomes (CCIL) in serum was investigated by measuring the amount of protein adsorbed onto liposomes. The CCIL showed a much lower amount of adsorbed protein than the other liposomes. Those results indicated that the stability of CCIL in serum was higher than those of the other liposomes. Thus, the comb-type copolymer composed of ODA-HPOEM-HEMA can be a promising surface modifier for enhancement of the stability of liposomes in systemic circulation.

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27

Aguiar, Valeska S., and Carla B. G. Bottoli. "Physical and electrophoretic characterization of octadecyl methacrylate-based monolithic columns for use in capillary electrochromatography." Journal of the Brazilian Chemical Society 24, no. 3 (March 2013): 423–31. http://dx.doi.org/10.1590/s0103-50532013000300010.

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28

Qin, Shuhui, Krzysztof Matyjaszewski, Hui Xu, and Sergei S. Sheiko. "Synthesis and Visualization of Densely Grafted Molecular Brushes with Crystallizable Poly(octadecyl methacrylate) Block Segments." Macromolecules 36, no. 3 (February 2003): 605–12. http://dx.doi.org/10.1021/ma021472w.

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29

Farag, Reem K. "Poly(Cinnamoyloxy Ethyl Methacrylate-Co-Octadecyl Acrylate) as Flow Improver for Egyptian Waxy Crude Oils." International Journal of Polymeric Materials 57, no. 3 (January 2, 2008): 189–202. http://dx.doi.org/10.1080/00914030701486211.

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30

Tamada, Masao, Masaharu Asano, Masaru Yoshida, and Minoru Kumakura. "Formation of a thin film of poly(octadecyl methacrylate) using the physical vapour deposition technique." Polymer 32, no. 11 (January 1991): 2064–69. http://dx.doi.org/10.1016/0032-3861(91)90174-h.

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31

Liang, Liping, Yanyan Dong, Yuqing Liu, and Xu Meng. "Modification of Polyurethane Sponge Based on the Thiol–Ene Click Reaction and Its Application for Oil/Water Separation." Polymers 11, no. 12 (December 12, 2019): 2072. http://dx.doi.org/10.3390/polym11122072.

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A polyurethane (PU) sponge with hydrophobic/oleophilic property was prepared based on the thiol–ene click reaction, which was a simple method with only one step. Photopolymerization was induced through UV light on the sponge surface in a homogeneous solution containing polyethylene glycol diacrylate, pentaerythritol (mercaptoacetic acid) ester, 2-hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone, and octadecyl methacrylate. The as-prepared sponge possessed excellent selective for oil from various types of oil/water mixtures. It also had a high absorption capacity for toluene, >21 times its self-weight, and it had about 20 times its self-weight for vegetable oil, even after five extrusion–adsorption cycles, presenting a good recyclability. It created a new method to prepare oil/water separation sponge.

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32

Michael Hayden, L., Brian L. Anderson, Jimmy Y. S. Lam, Brian G. Higgins, Pieter Stroeve, and Stephen T. Kowel. "Second-harmonic generation in Langmuir-Blodgett films of hemicyanine-poly(octadecyl methacrylate) and hemicyanine-behenic acid." Thin Solid Films 160, no. 1-2 (June 1988): 379–88. http://dx.doi.org/10.1016/0040-6090(88)90084-3.

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33

Zhou, Mengmeng, Yutong Bi, Haijun Zhou, Xiaoqi Chen, Fen Zhang, Yantao Li, and Xiongwei Qu. "Aggregation Behavior of Poly(Acrylic acid‐co‐Octadecyl Methacrylate) and Bovine Serum Albumin in Aqueous Solutions." ChemistryOpen 10, no. 3 (February 25, 2021): 373–79. http://dx.doi.org/10.1002/open.202000336.

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34

Huda, Muhsina K., Pranjal P. Das, Prakash J. Saikia, and Shashi D. Baruah. "Synthesis of poly(n-octadecyl methacrylate-co-2-hydroxyethyl methacrylate) copolymer and their utilization as polymeric stabilizer in the preparation of PCL microspheres." Polymer Bulletin 74, no. 5 (August 24, 2016): 1661–76. http://dx.doi.org/10.1007/s00289-016-1795-z.

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35

ZHOU, Sunying, Jinyun CHEN, Jingjing TAN, Xucong LIN, and Zenghong XIE. "Preparation of octadecyl methacrylate-based polymer stationary phase by in-situ polymerization for open tubular capillary electrochromatography." Chinese Journal of Chromatography 33, no. 12 (2015): 1307. http://dx.doi.org/10.3724/sp.j.1123.2015.07010.

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36

Mierzwa, M., G. Floudas, P. Štepánek, and G. Wegner. "Effect of pressure on the side-chain crystallization of poly(n-octadecyl methacrylate) studied by dielectric spectroscopy." Physical Review B 62, no. 21 (December 1, 2000): 14012–19. http://dx.doi.org/10.1103/physrevb.62.14012.

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37

Hara, Takeshi, Gino V. Baron, Kosuke Hata, Yoshihiro Izumi, Takeshi Bamba, and Gert Desmet. "Performance of functionalized monolithic silica capillary columns with different mesopore sizes using radical polymerization of octadecyl methacrylate." Journal of Chromatography A 1651 (August 2021): 462282. http://dx.doi.org/10.1016/j.chroma.2021.462282.

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38

Yang, Yuzhen, Ali Reza Mahdavian, Eric S. Daniels, Andrew Klein, and Mohamed S. El-Aasser. "Gold deposition on Fe3O4/(co)Poly(N-octadecyl methacrylate) hybrid particles to obtain nanocomposites With ternary intrinsic features." Journal of Applied Polymer Science 127, no. 5 (May 23, 2012): 3768–77. http://dx.doi.org/10.1002/app.37647.

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39

Coronado, Alejandro, Areli I. Velazquez, and Enrique J. Jiménez. "Rheological Properties of Multi-Block Associative Polyelectrolytes Obtained by Nitroxide-Mediated Solution Polymerization." MRS Proceedings 1613 (2014): 143–49. http://dx.doi.org/10.1557/opl.2014.171.

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ABSTRACTA multi-block associative polyelectrolyte based on poly(methacrylic acid-ra-styrene) [MAA-S] and poly(octadecyl methacrylate) [ODMA] was synthesized through stepwise nitroxide-mediated solution polymerizations. The obtained polymer has a heptablock copolymer structure, alternating MAA-S as hydrophilic blocks (theoretical degree of polymerization [DPT] of 250), and ODMA as hydrophobic blocks (DPT = 15). Rheological properties, in the linear-response regime, of aqueous solutions (polymer content = 1.5 wt.%) were studied as a function of the amount of blocks on the polymer using steady-shear and creep-compliance experiments. Rheological experiments demonstrate that the viscoelastic behavior of the polymer bearing an ODMA block in terminal position greatly differs from that of the polymer with MAA-S block terminations. The former behaves as a newtonian fluid on a wider range of shear rates than the latter, which exhibit a shear-thinning behavior, even at low shear rates, independently of the molecular weight and number of blocks.

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40

Jukić, Ante, Fabio Faraguna, Ivana Franjić, and Sunčica Kuzmić. "Molecular interaction and viscometric behavior of mixtures of polyolefin and poly(styrene- co -dodecyl methacrylate- co -octadecyl methacrylate) rheology modifiers in solution of lubricating base oil." Journal of Industrial and Engineering Chemistry 56 (December 2017): 270–76. http://dx.doi.org/10.1016/j.jiec.2017.07.019.

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41

Li, Wenbang, Fangling Wu, Yongwei Dai, Jing Zhang, Bichen Ni, and Jiabin Wang. "Poly (Octadecyl Methacrylate-Co-Trimethylolpropane Trimethacrylate) Monolithic Column for Hydrophobic in-Tube Solid-Phase Microextraction of Chlorophenoxy Acid Herbicides." Molecules 24, no. 9 (April 29, 2019): 1678. http://dx.doi.org/10.3390/molecules24091678.

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Chlorophenoxy acid herbicides (CAHs), which are widely used on cereal crops, have become an important pollution source in grains. In this work, a highly hydrophobic poly (octadecyl methacrylate-co-trimethylolpropane trimethacrylate) [poly (OMA-co-TRIM)] monolithic column has been specially prepared for hydrophobic in-tube solid-phase microextraction (SPME) of CAHs in rice grains. Due to the hydrophobicity of CAHs in acid conditions, trace CAHs could be efficiently extracted by the prepared monolith with strong hydrophobic interaction. Several factors for online hydrophobic in-tube SPME, including the length of the monolithic column, ACN and trifluoroacetic acid percentage in the sampling solution, elution volume, and elution flow rate, were investigated with respect to the extraction efficiencies of CAHs. Under the optimized conditions, the limits of detection of the four CAHs fell in the range of 0.9–2.1 μg/kg. The calibration curves provided a wide linear range of 5–600 μg/kg and showed good linearity. The recoveries of this method ranged from 87.3% to 111.6%, with relative standard deviations less than 7.3%. Using this novel, highly hydrophobic poly (OMA-co-TRIM) monolith as sorbent, a simple and sensitive online in-tube SPME-HPLC method was proposed for analysis of CAHs residue in practical samples of rice grains.

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42

Mierzwa, M., and G. Floudas. "Real-time crystallization and melting of poly(n-octadecyl methacrylate) induced by temperature and pressure. A dielectric spectroscopy investigation." IEEE Transactions on Dielectrics and Electrical Insulation 8, no. 3 (June 2001): 359–64. http://dx.doi.org/10.1109/94.933344.

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43

Martínez-Sanchez, Javier A., Sara Arana-Peña, Diego Carballares, Malcom Yates, Cristina Otero, and Roberto Fernandez-Lafuente. "Immobilized Biocatalysts of Eversa® Transform 2.0 and Lipase from Thermomyces Lanuginosus: Comparison of Some Properties and Performance in Biodiesel Production." Catalysts 10, no. 7 (July 3, 2020): 738. http://dx.doi.org/10.3390/catal10070738.

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Eversa® Transform (ET), and the lipase from Thermomyces lanuginosus (TLL), liquid commercial lipases formulations, have been immobilized on octyl agarose beads and their stabilities were compared. Immobilized and free ET forms were more thermostable than TLL formulations at pH 5.0, 7.0, and 9.0, and the ET immobilized form was more stable in the presence of 90% methanol or dioxane at 25 °C and pH 7. Specific activity versus p-nitrophenyl butyrate was higher for ET than for TLL. However, after immobilization the differences almost disappeared because TLL was very hyperactivated (2.5-fold) and ET increased the activity only by 1.6 times. The enzymes were also immobilized in octadecyl methacrylate beads. In both cases, the loading was around 20 mg/g. In this instance, activity was similar for immobilized TLL and ET using triacetin, while the activity of immobilized ET was lower using (S)-methyl mandelate. When the immobilized enzymes were used to produce biodiesel from sunflower oil and methanol in tert-butanol medium, their performance was fairly similar.

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44

WADAYAMA, Toshimasa, Hideto MOMOSE, and Wataru SUËTAKA. "The change in molecular orientation of octadecyl-methacrylate L-B film in photo-polymerization observed with polarization modulation infrared spectroscopy." Journal of the Spectroscopical Society of Japan 38, no. 3 (1989): 192–98. http://dx.doi.org/10.5111/bunkou.38.192.

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CHEN, Qingrui, Chang LIU, Guoqing JIANG, Xiaoli LIU, Meng YANG, Dan ZHANG, and Fengqi LIU. "STUDIES ON SWELLING BEHAVIOR OF POLY(ACRYLIC ACID-co-OCTADECYL METHACRYLATE) HYDROPHOBIC ASSOCIATION HYDROGELS WITH HIGH MECHANICAL PROPERTIES." Acta Polymerica Sinica 010, no. 6 (June 12, 2010): 797–802. http://dx.doi.org/10.3724/sp.j.1105.2010.09469.

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Baty, Ace M., Peter A. Suci, Bonnie J. Tyler, and Gill G. Geesey. "Investigation of Mussel Adhesive Protein Adsorption on Polystyrene and Poly(octadecyl methacrylate) Using Angle Dependent XPS, ATR-FTIR, and AFM." Journal of Colloid and Interface Science 177, no. 2 (February 1996): 307–15. http://dx.doi.org/10.1006/jcis.1996.0036.

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Wu, Yimin, Jian Lin, Qingzheng Wu, Xiaoping Wu, Xucong Lin, and Zenghong Xie. "Rapid analysis of trace levels of flavins by pressurized capillary electrochromatography-laser induced fluorescence detection with sulfonated N-octadecyl methacrylate monolith." Journal of Pharmaceutical and Biomedical Analysis 53, no. 5 (December 2010): 1324–31. http://dx.doi.org/10.1016/j.jpba.2010.07.012.

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Hisada, Kenji, Shinzaburo Ito, and Masahide Yamamoto. "Triplet Energy Transfer from Carbazole to Bromonaphthalene in a Two-Dimensional Chromophore Plane Prepared by Poly(octadecyl methacrylate) Langmuir-Blodgett Films." Langmuir 11, no. 3 (March 1995): 996–1000. http://dx.doi.org/10.1021/la00003a050.

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Tas, Huseyin, and Lon J. Mathias. "Synthesis and polymerization of new di-octadecyl ester derivatives of α-hydroxymethyl acrylate: A structure-property correlation for their copolymers with methyl methacrylate." Journal of Polymer Science Part A: Polymer Chemistry 46, no. 23 (December 1, 2008): 7785–93. http://dx.doi.org/10.1002/pola.23080.

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Zhao, Zheng-Bai, Li Tai, Da-Ming Zhang, Zhi-Fei Wang, and Yong Jiang. "Preparation of poly (octadecyl methacrylate)/silica-(3-methacryloxypropyl trimethoxysilane)/silica multi-layer core-shell nanocomposite with thermostable hydrophobicity and good viscosity break property." Chemical Engineering Journal 307 (January 2017): 891–96. http://dx.doi.org/10.1016/j.cej.2016.09.021.

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