Relevant bibliographies by topics / Naphthalene Properties

Academic literature on the topic 'Naphthalene Properties'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Naphthalene Properties"

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El-Dossoki, Farid I. "Protonation and Solvation Thermodynamics of Some Naphthol Derivatives in KCl Aqueous Solution of Different Ionic Strengths." Journal of Chemistry 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/7234320.

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The acid-base properties of naphthalen-1-ol (L1), naphthalene-1,5-diol (L2), and 4-amino-3-hydroxynaphthalene-1-sulphonic acid (L3) were characterized from pH-metric measurements in pure water and in different concentrations (0–4 mol kg−1) of aqueous KCl solutions at the temperature range ofT= (293.15 to 213.15) K at 5 K intervals. The results reveal that naphthalen-1-ol and naphthalene-1,5-diol molecules have two ionisable protons (of the hydroxyl groups) while 4-amino-3-hydroxynaphthalene-1-sulphonic acid has three ionisable protons (hydrogen ion of the hydroxyl group, SO3H, andNH3+). Modeling of the data was done by applying Debye-Hückel model. The protonation and the solvation processes of all studied ligands are spontaneous and endothermic processes. Also the solubilities of naphthalen-1-ol, naphthalene-1,5-diol, and 4-amino-3-hydroxynaphthalene-1-sulphonic acid were determined. The data were analyzed using Setschenow equation and the values of Setschenow coefficients (km) were determined. From the solubility data, the activity coefficients were obtained. The values of the total solubilities (ST) for naphthalen-1-ol and naphthalene-1,5-diol were found equal to the values of their neutral species (S0). On the other hand, the total solubility for 4-amino-3-hydroxynaphthalene-1-sulphonic acid is different from that of its neutral species. The results also indicate solubility decrease in pure water from L1-L2-L3.
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Zhu, Jian Qing, Wei Wang, and Hui Ying Xu. "QSPR Models for the Physicochemical Properties of Polychlorinated Naphthalene Congeners." Advanced Materials Research 726-731 (August 2013): 440–43. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.440.

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Based on quantitative structureproperty relationship (QSPR) of organic compounds, geometrical optimization and quantum chemical parameter calculations have been performed at the B3LYP/6-31G* level of theory for 75 polychlorinated naphthalenes (PCNs). A number of statistically-based parameters have been obtained. Relationship between the physicochemical properties of polychlorinated naphthalene compounds (n-octanol/air partition coefficient, sub-cooled liquid vapor pressure, water solubility) and the structural descriptors have been established by multiple linear regression (MLR) method. The results show that the molecular volume (Vmc), dipolar moment (μ), and the energy of lowest unoccupied molecular orbital (ELUMO), together with the quantity derived from electrostatic potential () can be well used to express the quantitative structure-property relationships of polychlorinated naphthalene compounds. The models constructed have good robustness and high predictive capability.
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Bedi, Anjan, Linda J. W. Shimon, Benny Bogoslavsky, and Ori Gidron. "Easier to Twist than Bend: The Scope of the Bridge Formation Approach to Naphthalenophane Synthesis." Organic Materials 02, no. 04 (October 2020): 323–29. http://dx.doi.org/10.1055/s-0040-1721102.

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Twisting anthracene and higher acenes can alter their optical, magnetic, and electronic properties. To test the effect of twisting on the lower homologue, naphthalene, we synthesized tethered naphthalenophanes bearing alkyl bridges. Both X-ray structure and DFT calculations show that hexyl and butyl bridges induce a 6° and 12° end-to-end twist on the naphthalene unit, respectively. Attempts to increase the twisting further using shorter tethers resulted in an elimination product. Enantiomerically pure naphthalenophanes display strong chiroptical properties, which intensify with increasing twist. Attempts to induce bending, rather than twisting, using the same synthetic methodology, resulted in intermolecular dimerization, yielding macrocyclic naphthalenes. This work highlights the importance of steric hindrance in the synthesis of curved cyclophanes using the bridge formation approach.
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Srivastava, Umesh Chandra, and Shyamendra Pratap Singh. "Structural and Vibrational Properties of Solid Naphthalene (C10H8) by Use of VTBFS Model." Oriental Journal Of Chemistry 38, no. 3 (June 30, 2022): 762–65. http://dx.doi.org/10.13005/ojc/380329.

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In this article author’s are reporting lattice dynamical properties of naphthalene (C10H8) by use of VTBFS model. we also report the combined density of states (CDS), dispersion relation and elastic properties of naphthalene. So, use of the present model the lattice property of naphthalene is reported successfully. Moreover, within our reported result the lattice modes exhibit more drastic changes in the structural and vibrational properties of naphthalene.
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Choi, Don-Soo, Mu-Young Kim, and Kyung-Woo Hyung. "Electrochemical and Spectrum Properties of 2,7-Naphthalene Ligand Compounds." Korean Journal of Materials Research 19, no. 9 (September 27, 2009): 510–15. http://dx.doi.org/10.3740/mrsk.2009.19.9.510.

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Dos Santos, Andre, Marcos Dias, and David Antonelli. "Combustion Properties of Several Species of WoodCombustion Properties of Several Species of Wood." Chemistry & Chemical Technology 3, no. 3 (September 15, 2009): 177–82. http://dx.doi.org/10.23939/chcht03.03.177.

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Mesoporous niobium oxide (Nb2O5) was synthesized and treated with naphthalene sulfonated formaldehyde resin (NSF) solution. These new inorganic-organic hybrid composites were characterized by different techniques. Results indicated that the pores of the nanostructured material are filled with the NSF resin with changes in the morphology and thermal properties of the mesoporous Nb2O5
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Boinski, T., A. Cieszkowski, B. Rosa, B. Leśniewska, and A. Szumna. "Calixarenes with naphthalene units: calix[4]naphthalenes and hybrid[4]arenes." New Journal of Chemistry 40, no. 10 (2016): 8892–96. http://dx.doi.org/10.1039/c6nj01736c.

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Wei, Sha Sha, Ren Jie Wang, and Gang Liu. "Synthesizes and Properties of a New Unsymmetrical Diarylethene with a Naphthalene Moiety." Advanced Materials Research 788 (September 2013): 219–22. http://dx.doi.org/10.4028/www.scientific.net/amr.788.219.

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An unsymmetrical diarylethene with a naphthalene moiety was synthesized. The naphthalene was connected directly to the central perfluorocyclopentene ring as an aryl moiety and available to participate in photoisomerization reaction. This compound exhibited reversible photochromism, changing from colorless to SandyBrown after irradiation with UV light both in solution and in poly-methyl methacrylate (PMMA) amorphous film. Also, it exhibited remarkable fluorescence switching in the solid state. The electron-withdrawing substituents evidently enhanced the some propeties of diarylethenes with a naphthalene moiety. All results indicated that the naphthalene played an important role during the process of photochromic reaction for the diarylethene derivatives.
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Miroshnichenko, E. A., T. S. Kon’kova, Yu N. Matyushin, A. B. Vorob’ev, J. O. Inozemtsev, and A. V. Inozemtsev. "The Thermochemical Properties of Naphthalene Derivatives." Russian Journal of Physical Chemistry B 16, no. 2 (April 2022): 207–10. http://dx.doi.org/10.1134/s1990793122020191.

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Voloshchuk, Roman, Mariusz Tasior, Adina I. Ciuciu, Lucia Flamigni, and Daniel T. Gryko. "Corrole–imide dyads — Synthesis and optical properties." Journal of Porphyrins and Phthalocyanines 19, no. 01-03 (January 2015): 479–91. http://dx.doi.org/10.1142/s1088424615500339.

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Two rarely seen building blocks have been incorporated into light absorbing arrays: corroles and 2,3-naphthalimides. General synthetic strategy consisting in direct condensation of formyl substituted aromatic imides with dipyrranes led to diverse range of trans-A2B-corroles in acceptable yields. Spectroscopic properties of all five dyads studied suggest that regardless the imide's structure, components are weakly electronically coupled. Positioning 2,3-naphthalimide unit partially above the corrole core leads to slight alteration of their optical properties. Dyads bearing blue-absorbing imide components display different behavior depending on their structure. In corrole linked with naphthalenyl-naphthalene-1,8-carboximide a 100% effective energy transfer reaction from the imide component to the corrole component occurred. On the contrary, in small, strongly polarized amino-cyano-phthalimide neither efficient energy-nor electron-transfer could be detected and excitation leads to fluorescence from both components.
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Dissertations / Theses on the topic "Naphthalene Properties"

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Ashram, Muhammad. "Synthesis of calix(4)naphthalenes and their properties." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq25765.pdf.

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Le, Guen Anne Carleton University Dissertation Chemistry. "Synthesis, properties and transformation of naphthalene-based poly(arylene ether ketone)s." Ottawa, 1994.

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Broughton, Peter William Carleton University Dissertation Chemistry. "The synthesis and properties of naphthalene-based poly(arylene ether ketone)s." Ottawa, 1995.

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Carson, Bradley Edward. "Synthesis and properties of π-stacked phenylene ethynylene oligomers with a 1,8- substituted naphthalene bridging scaffold." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/41074.

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The field of molecular electronics includes the study of conjugated oligomers and polymers that have significant potential for use in devices such as light emitting diodes (LEDS), field effect transistors (FETS), and photovoltaic solar cells. These materials may replace inorganic semiconductors in these devices, Achieving better device performance through lowering the band-gap and achieving higher field effect mobilities will benefit from a greater fundamental understanding of charge transfer through the aromatic subunits. π-stacking of segments of conjugated polymers has been identified as a key feature that influences the charge transfer through semiconducting organic materials. Optimizing the molecular architecture of conjugated polymers has the potential to provide materials with better charge mobility. While devices might benefit from materials that take advantage of π-stacking, access to π-stacked structures presents a synthetic challenge. 1,8-Disubstituted naphthalenes may serve as simple covalent bridging scaffolds which might hold conjugated oligomers in a π-stacked arrangement. The research described in this thesis focuses on the synthesis of well-defined phenylene ethynylene oligomers coupled to naphthalene to serve as experimental models of closely π-stacked aromatic units in conjugated polymers. The π-stacked molecules reported in this dissertation are characterized by NMR, IR, and mass spectrometry. The effects of π- stacking on the structure and behavior of conjugated oligomers are determined by X-ray crystallography, spectroscopy, and electrochemistry.
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Romano, Natalie C. "Photophysical Properties of Amphiphilic Naphthalene Diimide Nanoassemblies and Cadmium Sulfide Nanoparticles and Poly(phenylene-ethynylene) Nanocomposites." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1399035654.

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Etheridge, Forrest Samuel. "Tuning the Opto-Electronic Properties of Organic Semiconductors: Derivatives ofAzadipyrromethene, Naphthalene Diimide and Poly(3-hexylthiophene)." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1459352863.

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Mao, Zhenghao. "Molecular Structures and Device Properties of Organic Solar Cells." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1395332071.

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Silva, Francisco de Araújo. "Estudo das propriedades eletrônicas e espectroscópicas de uma série de diimidas naftálicas com substituintes aromáticos com potencial aplicação em dispositivos de armazenamento e conversão de energia." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-22062018-212611/.

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As diimidas naftálicas simétricas têm sido vastamente estudadas devido suas propriedades químicas, ópticas, e eletrônicas. A possibilidade de modular suas propriedades com a substituição de grupos diversos na formação da imida, viabiliza aplicações em dispositivos eletrônicos, conversão de energia e produção de redes de coordenação metalo-orgânicas. Neste trabalho sintetizou-se uma série de 5 diimidas naftálicas (NDIs) simétricas com substituintes aromáticos. Foram analisadas as características espectroscópicas e eletrônicas com obtenção dos valores de band-gap óptico através de ensaios de voltametria cíclica e cálculos teóricos (DFT), mostrando a influência dos substituintes nas propriedades eletrônicas. Estas moléculas apresentam indícios de agregação em determinados solventes tornando possível a produção de filmes finos. As NDIs produzidas foram intercaladas em uma matriz inorgânica lamelar, o pentóxido de vanádio amorfo, e melhorando consideravelmente, via de regra, a capacidade específica de carga quando analisados em sistemas trocadores de íon lítio, aplicados geralmente em cátodos de bateria, com valores da ordem de 190 mA.h.g-1 (sob 100 uA, variação de E +1,2V à -1,2V). É provavelmente um dos primeiros trabalhos a utilizar NDIs em sistemas mistos de matrizes inorgânicas aplicados em trocadores de íons. Algumas apresentam potencial para dispositivos de conversão de luz em eletricidade.
Symmetric naphthalic diimides have been extensively studied due to their chemical, optical, and electronic properties. The possibility of modulating their properties by substitution with several groups in the formation of imides allows diverse applications in electronic devices, energy conversion, production of metallo-organic frameworks (MOFs). In this thesis, a series of 5 symmetrical aromatic-substituted naphthalic diimides (NDIs) were sinthesized. We have studied their optical and electronic characteristics obtaining optical band-gap with cyclic voltammetry tests and theoretical calculations (DFT), showing the influence of substituent in the electronic properties. Some of these imides may aggregate in certain solvents allowing this way the production thin films. The NDIs were intercalated in the inorganic intercalation matrix of amorphous vanadium pentoxide, and showed generally considerable improvement in the specific charge capacity when used in lithium ion exchange systems, that are usually applied in battery cathodes, reaching values of the order of 190 mA.h.g-1 (under 100 uA, E variation of + 1.2V to -1.2V). This is probably one of the first works using NDIs in mixed systems to applied inorganic matrices as ion exchangers. Some of them may be used for light conversion to electricity devices.
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Lundgren, Kjell. "Properties and analysis of dioxin-like compounds in marine samples from Sweden." Doctoral thesis, Umeå universitet, Kemiska institutionen, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-24.

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Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (PCBs) have been assigned toxic equivalency factors (TEFs). These compounds are today routinely analysed with sophisticated analytical techniques. In a near future, there might be other dioxinlike compounds such as polychlorinated naphthalenes (PCNs), alkyl-polychlorodibenzofurans (R-PCDFs), and polychlorinated dibenzothiophenes (PCDTs) added to this list of toxic dioxin-like compounds. It is therefore important to have a readiness to analyse these new compounds in environmental samples. In this study, a multi-residue non-destructive analytical method for the analyses of these planar dioxin-like compound classes was developed. The use of HPLC PX-21 carbon column fractionation enabled the separation of interfering PCBs from coplanar PCBs and other planar dioxin-like compounds of interest. The obtained planar fraction containing the dioxin-like compounds was analysed using high-resolution GC-MS. Levels of PCNs in surface sediments and settling particulate matter in the northern Baltic Sea were determined. The concentrations of PCNs in background surface sediments were approximately 1 ng/g dw and the estimated PCN fluxes were similar to the pre-industrial levels determined in Europe. The PCN congener patterns in the surface sediments suggest that the PCNs deposited in the Baltic Sea originate from similar sources. Bioaccumulation of PCNs in a benthic food chain (sediment, amphipod, isopod, and four-horned sculpin) from the Gulf of Bothnia was studied. The results indicated that only a few PCN congeners biomagnified. The highest biomagnification factors (BMFs) were found for 2,3,6,7-substituted congeners and those lacking adjacent hydrogen-substituted carbon atoms. The calculated biota to sediment accumulation factors (BSAFs) showed that the tetra- and penta- CNs exhibited BSAF values higher than one, while BSAFs for the more chlorinated PCNs were less than one. A general difference between the northern and southern parts of the Gulf of Bothnia could be seen in the samples, with the lowest PCN and total PCB concentrations being found in the north and the highest in the south. This gradient is related to distance from the more industrialised and populated regions in the southern parts of Sweden and Finland, and central Europe. Analysis of R-PCDFs in crustacean samples from the Swedish west coast was performed using HRGC-MS/MS. The ΣR-PCDFs in these samples were present at concentrations up to 10 times higher than the ΣPCDFs. The relatively high concentrations of R-PCDFs in the crab samples demonstrate that these compounds bioaccumulate. The fate of a pollutant in the environment and the toxicity of a compound are governed by its physicochemical properties. The information found in a data set of properties can predict a compound’s mode of action. The following physicochemical properties for 87 PCDFs were measured: ultra-violetadsorption, relative retention times on two common gas chromatographic stationary phases, and relative mass spectrometric response factors using EI- and NCI- modes.
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Hwang, Hann-Jang, and 黃漢章. "Study on Synthesis and Properties of Novel Bismaleimide Naphthalene." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/44635002562205350077.

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博士
國立成功大學
化學工程研究所
84
New aromatic bismaleimides containing bis(phenoxy)naphthalene unit , were synthesized. The presence of oxyethylene bond in the backbone is expected to enhance the flexibility and the elogation at breakage of these resins. The presence of a naphthalen unit in the backbone of the bismaleimide had increased the curing temper ature and reduced the reactivity of the maleimide bond. The cured resins showed higher Tg，thermal stability and char yield for naphthalene-containing bismaleimides than the corresponding analog. A series of polyaspartimides containing naphthalene unit in the polymer backbone were prepared by the polyaddition of this bismaleimide and various diamines via a michael-type addition. Tg were in the range 192∼231℃.and the 5% weight loss temperatures were above 300℃ in nitrogn. In this study, The combination of bismaleimide containing naphthalene unit with cyanate esters had produced a series of B-T resins. The effect of chemical composition and structure on the properties of bismaleimide- triazine resin were investigated in detial in order to understand the structures-properties relat ionship. The bismaleimide-triazine resins have special features, such as better resistance to moisture absorption, excellent chem- ical resistance, good dimensional stability, low dielectric cons- tant, and low dielectric loss,wich make this type of resin import ant in the aerospace and electronic industries. Aerospace applic ations include high temperatures adhesives, protective coatings and matrix resin for structure composite. Electric applications include printed circuit boards and semiconductor encapsulants.
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Books on the topic "Naphthalene Properties"

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Antsyforov, Gleb I., and Alyona F. Ivanski. Napthalene: Structure, properties, and applications. Hauppauge, N.Y: Nova Science Publishers, 2011.

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Book chapters on the topic "Naphthalene Properties"

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of ruthenium(III) complex with 2-hydroxy-naphthalene-1-carboxaldehyde." In Magnetic Properties of Paramagnetic Compounds, 503–4. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53971-2_261.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of binuclear complex of europium(II) with the bridging naphthalene dianion." In Magnetic Properties of Paramagnetic Compounds, 568. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_272.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of binuclear complex of europium(II) with the bridging naphthalene dianion." In Magnetic Properties of Paramagnetic Compounds, 569. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_273.

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Clark, Mark D., Charles L. McCormick, and Charles E. Hoyle. "Photophysical and Rheological Studies of the Aqueous-Solution Properties of Naphthalene-Pendent Acrylic Copolymers." In ACS Symposium Series, 291–302. Washington, DC: American Chemical Society, 1991. http://dx.doi.org/10.1021/bk-1991-0467.ch019.

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Georghiou, Paris E., and Zhaopeng Li. "Conformational Properties of the Calix[4]naphthalenes." In Calixarenes 50th Anniversary: Commemorative Issue, 55–66. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0267-4_4.

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Steiner, G., and C. Zimmerer. "Poly(ethylene-2,6-naphthalate) (PEN)." In Polymer Solids and Polymer Melts – Definitions and Physical Properties I, 780–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32072-9_84.

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Sadanobu, Jiro, and Hiroo Inata. "The Properties of Poly(Ethylene Naphthalate) (PEN) and its Application." In Science and Technology of Polymers and Advanced Materials, 141–51. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-0112-5_13.

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"EFFECT OF AMINO NAPHTHALENE SULFONIC ACID NATURE ON THE STRUCTURE AND PHYSICAL PROPERTIES OF THEIR COPOLYMERS WITH ANILINE." In Functional Polymer Blends and Nanocomposites, 235–48. Apple Academic Press, 2014. http://dx.doi.org/10.1201/b16895-13.

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DE VOOGT, P., and U. A. Th BRINKMAN. "Production, properties and usage of polychlorinated biphenyls." In Halogenated Biphenyls, Terphenyls, Naphthalenes, Dibenzodioxins and Related Products, 3–45. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-444-81029-8.50005-9.

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BALLSCHMITER, KARLHEINZ, CHRISTOFFER RAPPE, and HANS RUDOLF BUSER. "Chemical properties, analytical methods and environmental levels of PCBs, PCTs, PCNs and PBBs." In Halogenated Biphenyls, Terphenyls, Naphthalenes, Dibenzodioxins and Related Products, 47–69. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-444-81029-8.50006-0.

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Conference papers on the topic "Naphthalene Properties"

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Wang, Renjie, Shouzhi Pu, and Weijun Liu. "Synthesis, photochromic properties and application of a new diarylethene bearing a naphthalene and thiophene moiety." In Photonics and Optoelectronics Meetings 2011, edited by Pierre Galarneau, Xu Liu, and Pengcheng Li. SPIE, 2011. http://dx.doi.org/10.1117/12.918795.

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Kux, U., and M. Iyod. "Syntheses and properties of new donors: 1,6-methano[10]annulene- and naphthalene-derivatives with tetrathiafulvalene substituents." In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835495.

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Chin, J. S., and A. H. Lefebvre. "Influence of Fuel Chemical Properties on Soot Emissions From Gas Turbine Combustors." In ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1989. http://dx.doi.org/10.1115/89-gt-261.

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The influence of fuel composition on soot emissions from continuous flow combustors is examined. A study of the combustion characteristics of a wide range of present and potential aviation fuels suggests that smoke point provides a better indication of sooting tendency than does hydrogen content. It is concluded from this study that the best empirical relationship between fuel chemical composition and soot emissions is one which combines two fuel composition parameters — smoke point and naphthalene content — into a single parameter which is shown to correlate successfully soot emissions data acquired from several different fuels burning in a variety of gas turbine and model combustors.
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Nash, Leigh, and Subith Vasu. "Thermal Stability Measurement of Alternative Jet Fuels Using Ellipsometry." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63364.

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Thermal stability is an important characteristic of alternative fuels that must be evaluated before they can be used in aviation engines. Thermal stability refers to the degree to which a fuel breaks down when it is heated prior to combustion. This characteristic is of great importance to the effectiveness of the fuel as a coolant and to the engine’s combustion performance. The thermal stability of Sasol IPK, a synthetic alternative to Jet-A, with varying levels of naphthalene has been studied on aluminum and stainless steel substrates at 300 to 400 °C. This was conducted using a spectroscopic ellipsometer to measure the thickness of deposits left on the heated substrates. Ellipsometry is an optical technique that measures the changes in a light beam’s polarization and intensity after it reflects from a thin film to determine the film’s physical and optical properties. It was observed that, as would be expected, increasing the temperature increased the deposit thickness for a constant concentration of naphthalene on both substrates. The repeatability of these measurements was verified using multiple trials at identical test conditions. Lastly, the effect of increasing the naphthalene concentration at a constant temperature was found to also increase the deposit thickness.
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Prasopchingchana, Uthai, Zhiheng Lei, and Bakhtier Farouk. "Heat and Mass Transfer in a Differentially Heated Enclosure Filled With Supercritical Carbon Dioxide." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68361.

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Numerical simulations of heat and mass transfer in supercritical carbon dioxide are carried out for natural convection conditions in a differentially heated square enclosure. The two vertical walls are maintained at different temperatures while the two horizontal walls are insulated. For the mass transfer studies, a heated vertical naphthalene wall is considered. Properties of supercritical carbon dioxide are evaluated from the National Institute of Standards and Technology (NIST) Standard Reference Database 12. A correlation for the mean Nusselt number along the heated wall is obtained as a function of the heat transfer Rayleigh number (for a given Prandtl number). A correlation for the temporal Sherwood number along the naphthalene surface is obtained as a function of the mass transfer Rayleigh number, and Fourier number (for a given Schmidt number). The results are compared with result available in the literature.
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Rokusha, Yuki, Nana Sugimoto, Shigeyuki Yamada, and Osamu Tsutsumi. "Synthesis, liquid-crystalline behavior, and photoluminescence properties of novel Au(I) complex with naphthalene ring in a mesogenic core." In SPIE Organic Photonics + Electronics, edited by Iam Choon Khoo. SPIE, 2014. http://dx.doi.org/10.1117/12.2060334.

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Weis, M., J. Jakabovic, D. Donoval, J. Filo, and M. Putala. "Electrical properties of 2,6-bis(5′-hexyl-2,2′-bithiophene-5-yl) naphthalene organic transistors: Effect of preparation conditions." In 2012 International Conference on Advanced Semiconductor Devices & Microsystems (ASDAM). IEEE, 2012. http://dx.doi.org/10.1109/asdam.2012.6418542.

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Ruslan, Meor, Ihab Ahmed, and Bhupendra Khandelwal. "Evaluating Effects of Fuel Properties on Smoke Emissions." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56791.

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Volatile oil price and environmental impact of conventional jet fuel are key motivators towards the proposing of alternative jet fuels. This article introduces and establishes a relationship between jet fuel properties/composition and smoke emission. It is an important and comprehensive task as it underlines the base references and scientific reasoning on fuel compositions / properties; very few, if any, studies have investigated the effects of each of the properties/ compositions on smoke emissions. Two sets of fuels were tested on small re-commissioned Honeywell GTCP85 APU gas turbine Engine. The first set was consisted of 8 novel fuels, while the second was a blend of varied percentages of Jet A-1 and other alternative fuel. This is to provide a wide range of properties and compositions. The results were compared to those of Jet A-1on the same platform (Honeywell GTCP85 APU). It was observed that not all fuel compositions/properties have the same effects on the smoke number. Some of them such as: Specific Energy, Kinematic, viscosity, Biphenyls, monocycloparaffin, AlkylBenzene, Fluorenes, Distillation temp (90%), Carbon (%mass), Naphthalene, Composite Density, Benzocycloparaffin, Density at 15C°, Aromatics (%Vol) and Net heat of Combustion have a clear direct effect on the smoke number, while others such as iso-paraffin and flashpoint have a reduced impact on smoke number. This data shall be used to predict the effect of certain composition/ property on the smoke emission, thus it could be avoided or to be taking into considerations when producing or using new alternative fuels.
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Häring, M., and B. Weigand. "A New Analogy Function for the Naphthalene Sublimation Technique to Measure Heat Transfer Coefficients on Turbine Airfoils." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-017.

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The naphthalene sublimation technique is based on the analogy between mass and heat transfer. This analogy is only fully valid for incompressible flow and if the Prandtl and Schmidt number are equal. In the present investigation the energy- and mass transfer equations were solved simultaneously to establish an analogy function which allows the calculation of the Nusselt number from the Sherwood number in function of the Mach, the Prandtl and the Schmidt number. For a laminar flow this new analogy function is based on similarity solutions of the conservation equations for high Mach number flows. Also a numerical investigation was conducted to study the influence of the pressure gradient and the Soret effect as well as varying fluid properties. For a turbulent flow, a flat plate solution was established for Pr=1. Energy and mass transfer equations were additionally solved for a two dimensional duct flow to study the influence of the Prandtl number on the analogy function independently. The resulting analytical and numerical solutions are shown for various pressure gradients, Prandtl and Mach numbers. In addition, approximations for the analogy function are derived. The influence of the present theory on heat transfer measurements on a turbine airfoil is shown. The theory is validated against experimental results in Häring et. al. (1995) showing a good agreement between the heat transfer coefficients calculated with the new analogy function and measurements of actual heat transfer.
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Dvorkin, Leonid I., Vadim Zhitkovsky, Nataliya Lushnikova, and Mohammed Sonebi. "Comparative Study of Metakaolin and Zeolite Tuff Influence on Properties of High-Strength Concrete." In 4th International Conference on Bio-Based Building Materials. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/www.scientific.net/cta.1.179.

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Composite admixtures which include active pozzolanic components and high-range water reducers, allows to obtain high-strength, particularly dense and durable concrete to achieve a reduction in resources and energy consumption of manufacturing.Zeolite, containing a significant amount of active silica, can serve as one of the alternative substances to resources and energy consuming mineral admixtures like metakaolin and silica fume. The deposits of zeolites are developed in Transcarpathia (Ukraine), USA, Japan, New Zealand, Iceland and other countries. It is known that zeolite tuffs exhibit pozzolanic properties and are capable to substitution reactions with calcium hydroxide.However, the high dispersion of zeolite rocks leads to a significant increase in the water consumption of concrete. Simultaneous introduction of zeolite tuffs with superplasticizers, which significantly reduce the water content, creates the preconditions for their effective use in high-strength concrete.Along with dehydrated (calcined) zeolite, natural (non-calcined) zeolite expresses itself as an effective mineral admixture of concrete. When using non-calcined zeolite, the effect of increasing in compressive strength at the age of 3 and 7 days is close to the effect obtained when using dehydrated zeolite: 8-10% and 10- 12%, respectively, and 28 days the strength growth is 13-22%. The use of non-calcined zeolite has a significant economic feasibility, so it certainly deserves attention. There were compared the effect of zeolite to metakaolinThe results of the research indicate that the use of composite admixtures, consisted of calcined (non-calcined) zeolite tuff of high dispersity and superplasticizer of naphthalene formaldehyde type, allows to obtain concretes classes C50…C65.
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Reports on the topic "Naphthalene Properties"

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Chirico, R. D., S. E. Knipmeyer, A. Nguyen, and W. V. Steele. The thermodynamic properties to 700 K of naphthalene and 2,7-dimethylnaphthalene. Office of Scientific and Technical Information (OSTI), August 1993. http://dx.doi.org/10.2172/10181459.

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