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Dissertations / Theses on the topic 'Polymerizable quaternary ammonium salts'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Peterson, Justine. "Asymmetric Phase Transfer Reactions Involving Cinchona Alkaloid Derived Quaternary Ammonium Salts." Thesis, University of Salford, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491811.

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This work is concerned with the development of the synthesis of a series of N-anthracenyl cinchona salts for use as chiral phase transfer catalysts. Their employment both as pre-prepared and as catalysts generated in situ, in a number of classes of organic reactions has been investigated, as has their attachment to a solid support.

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2

Tezel, Ulas. "Fate and effect of quaternary ammonium compounds in biological systems." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28229.

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Thesis (M. S.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Pavlostathis, Spyros G.; Committee Member: Huang, Ching-Hua; Committee Member: Hughes, Joseph B.; Committee Member: Sobecky, Patricia A.; Committee Member: Spain, Jim C.

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3

Lang, Christopher M. "Development of quaternary ammonium based electrolytes for rechargeable batteries and fuel cells." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-10262006-140639/.

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Thesis (Ph. D.)--Chemical and Biomolecular Engineering, Georgia Institute of Technology, 2007.<br>Kohl, Paul, Committee Chair ; Bottomley, Lawrence, Committee Member ; Eckert, Charles, Committee Member ; Fuller, Tom, Committee Member ; Teja, Amyn, Committee Member.

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4

Rambocus, Subhas. "Reactive solvent extraction of dicarboxylic and carboxylic-sulfonic acids." Thesis, London South Bank University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245144.

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5

Cumming, Janet L. "Environmental Fate, Aquatic Toxicology and Risk Assessment of Polymeric Quaternary Ammonium Salts from Cosmetic Uses." Thesis, Griffith University, 2008. http://hdl.handle.net/10072/365855.

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The consumption of household and personal care products in Australia is similar to that of more highly regulated agricultural and veterinary chemicals. One class of chemical used in cosmetic applications, polymeric quaternary ammonium salts (polyquaterniums), is thought to have adverse effects on aquatic organisms. These polymers belong to a larger class of polymers, cationic polyelectrolytes, that are widely used in industry, largely for water treatment, and that have been extensively studied and regulated. The cosmetic polyquaterniums, however, have not been subject to the same scrutiny, eve

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6

Yang, Jeongwoo. "Fate and effect of alkyl benzyl dimethyl ammonium chloride in mixed aerobic and nitrifying cultures." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19871.

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Thesis (M. S.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Spyros G. Pavlostathis; Committee Member: Ching-Hua Huang; Committee Member: John A. Pierson.

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7

Wang, Weijun. "A study of the adsorption properties of quaternized cellulose." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Dissertation/WANG_WEIJUN_40.pdf.

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8

Naden, Alexandria Olessia. "Exploring theoretical origins of the toxicity of organic quaternary ammonium salts towards Escherichia coli using machine learning approaches." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/exploring-theoretical-origins-of-the-toxicity-of-organic-quaternary-ammonium-salts-towards-escherichia-coli-using-machine-learning-approaches(c022fd93-34cb-4989-aebb-dbca62a1765a).html.

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Quaternary ammonium salts are surface active bactericides. A mechanism of their biological activity has been well studied experimentally, and it encompasses two stages. The first stage involves electrostatic interactions of polar functional groups of the salts with oppositely charged functional groups on a bacterial cell surface, and the second stage includes incorporation of their lipophilic groups into a bacterial cell membrane. However, despite numerous experimental studies, computational modelling of this mechanism with the aim to support experimental observations with theoretical conclusi

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9

Sonawane, P. D. "Solvent thermodynamic, surface activity and compressibility behavior of fused quaternary ammonium salts in solvents of different dielectric constants." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2002. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2574.

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10

Tijen, Seyidoglu. "Purification And Modification Of Bentonite And Its Use In Polypropylene And Linear Low Density Polyethylene Matrix Nanocomposites." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612204/index.pdf.

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The potential use of Resadiye/Tokat bentonite as a reinforcement in polypropylene (PP) and linear low density polyethylene (LLDPE) polymer matrix nanocomposites filler was investigated. At first, organoclays (OC) were prepared by cation exchange reaction (CER) between the raw bentonite (RB) and three quaternary ammonium salts with long alkyl tails (QA): hexadecyl trimethyl ammonium bromide [HMA] [Br], tetrabutyl ammonium tetrafluoroborate [TBA] [BF4], tetrakisdecyl ammonium bromide [TKA] [Br] and one quaternary phosphonium (QP) salt: tetrabutyl phosphonium tetrafluroborate [TBP] [BF4]. Charact

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11

Rangel, Herllaine de Almeida. "Emprego da técnica de emissão por fluorescência de ultravioleta no monitoramento de inibidores de corrosão em água produzida." Universidade do Estado do Rio de Janeiro, 2009. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=2831.

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Para aumentar os volumes de extração de petróleo, resolver e prevenir problemas nas operações de produção são utilizados diversos produtos químicos, dentre os quais se destacam os inibidores de corrosão, que são utilizados em toda cadeia produtiva do petróleo visando proteger o sistema da deterioração por corrosão. Os sais de amônio quaternário são uma das classes de inibidores mais utilizadas pela indústria do petróleo devido a sua grande eficiência. Entretanto, sua solubilidade em água faz com que estejam presentes na água produzida representando um risco para contaminação ambiental, visto q

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12

Freire, Brântuas Pedro. "Captage du dioxyde de carbone par des semiclathrate hydrates : Modélisation, expérimentation et dimensionnement d’une unité pilote." Thesis, Saint-Etienne, EMSE, 2013. http://www.theses.fr/2013EMSE0691/document.

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Les hydrates de gaz sont une façon non conventionnelle de piéger et de stocker des molécules de gaz par cristallisation d’eau à haute pression et à basse température. Les sels d'ammonium quaternaire forment des semiclathrates hydrates à pression atmosphérique et des hydrates mixtes en présence de gaz. Il est important de connaître leurs propriétés thermodynamiques, afin d'évaluer leurs applications potentielles : une des ces-ci est la capture du dioxyde de carbone à partir des gaz de combustion. Dans nos expériences, les semiclathrates ont été fabriqués à partir de sels de peralkylammonium (TB

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13

Gwo, C. C., and 郭啟忠. "The solubilities of Quaternary ammonium salts and association and distribution constants of Quaternary ammonium salts for organic-aqueous phase." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/67879907929125451012.

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碩士<br>國立中央大學<br>化學工程學系<br>84<br>In this project, we intend to investigate:(I). the solubilities/miscibilites of typical phase transfer catalysts of quaternary ammonium salts in insert solvents of dipole moment 0-4 debyes;(II). The determination of the association constants of the quaternary ammonium cations with various common anions by conductometry; and (III). the partition coefficient and the extration constantsof the quaternary ammonium ion pairs in systems of various organi

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14

Chung, Wu Hsun, and 鍾武勳. "The silica-based anion chromatography with polymerized quaternary phosphoium and quaternary ammonium salts." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/31669788847267361934.

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碩士<br>國立臺灣師範大學<br>化學系<br>84<br>Abstract The silica-based anion-exchangers were synthesized by copolymerization with quaternary phosphoium and quaternary ammonium salts. The retention behavior of analyte anions was investigated by single-column ion chromatography（SCIC）with conductimetric and indirect UV detections. A homologous series of dicarboxylic acid（oxalic acid,malonic acid, succinic acid, glutaric acid and adipic acid）and o-phthalic acid as eluents have been shown to be

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15

Fang-YiChen and 陳芳毅. "A Study on Characteristics of Quaternary Ammonium Salts in Electrosynthesis of Adiponitrile." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5g3wqp.

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碩士<br>國立成功大學<br>化學工程學系<br>106<br>Recently, with the increment of the needs of nylon, the demands of the key raw material, adiponitrile (ADN), also increase, whose production technology has been controlled by developed countries. In Taiwan, ADN strongly relies on the import from foreigner countries now, so the researches of synthesis of ADN are much important obviously. Electrosynthesis of ADN from acrylonitrile (AN) is a one-step reaction, and the toxicity of acrylonitrile is low. Therefore, the production technology is developed and researched comparatively easier. In this study, the inf

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16

Wan-ChiLin and 林婉琦. "Quaternary ammonium bromide salts with mono-, tri-, and tetra- n-octyl chains in polymer light-emitting diodes." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/32138317069240205499.

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17

Ku, Shu-Yuan, and 顧書源. "Application of quaternary ammonium salts based room temperature ionic liquid as electrolyte solvents in dye-sensitized solar cells." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/69341504714499281484.

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碩士<br>國立清華大學<br>化學工程學系<br>98<br>In this thesis, quaternary ammonium salt-based ionic liquids are used to serve as a low-volatility solvent for electrolytes in dye-sensitized solar cells (DSSCs). There are three main advantages for the use of volatile organic solvents for electrolytes, including fast diffusion rates, high ionic conductivities, and low viscosities. However, because of the high volatility of the electrolyte solvent, the cell performance decreases when the solvent vapor leaks. In this thesis, a series of quaternary ammonium salts-based ionic liquids are prepared from heating mixtu

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18

Chen, I.-Ling, and 陳怡伶. "Phase inversion characteristics of three-liquid-phase phase transfer catalytic systems using symmetric quaternary ammonium salts as the catalysts." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/89126571835636707961.

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碩士<br>國立成功大學<br>化學工程學系<br>87<br>The system with three-liquid phase transfer catalysis reaction is one of the research fields of great potential in the chemical engineering industries. The formation of the third liquid phase (TLP) can increase the reaction rate substantially. In another aspect, the TLP can simplify the steps of separation, thus the catalyst can be reused. For the applications in the industries, dispersion characteristics of this kind of heterogeneous system is very important in the equipment design. In this article, some common symmetric quaternary ammonium salts, including h

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19

Yan, Po-Ruei, and 顏伯叡. "Incorporation of Quaternary Ammonium Salts Containing Different Counterions into the C60 Derivative as Electron Transporting Layers to Improve the Performance of Inverted Perovskite Solar Cells." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/n4m2pj.

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碩士<br>國立交通大學<br>照明與能源光電研究所<br>105<br>In this research, three quaternary ammonium salts containing different counterions, including tetrabutylammonium bromide (TBABr), tetrabutylammonium tetrafluoroborate (TBABF4), and tetrabutylammonium hexafluorophosphate (TBAPF6), were incorporated into [6,6]-phenyl-C61 butyric acid methyl ester (PCBM) as electron transporting layer (ETL). These salts-doped PCBM films revealed higher electron mobility and Fermi levels compared with the un-doped one. Better charge transfer at the interface between perovskite and salts-doped PCBM was also obtained from PL quen

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20

Chong, Voon Joe. "PREPARATION AND EVALUATION OF NOVEL ANTIBACTERIAL DENTAL RESIN COMPOSITES." Thesis, 2013. http://hdl.handle.net/1805/3353.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Both quaternary ammonium bromide (QAB) and furanone derivatives were synthesized, characterized and formulated into dental resin composites for improved antibacterial properties. Compressive strength (CS) and S. mutans viability were used to evaluate the mechanical strength and antibacterial activity of the restoratives. The effects of chain length, loading, saliva and aging on CS and S. mutans viability were investigated. Chapter 2 describes how we studied and evaluated the formulated antibacterial resin composites by incorpor

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21

王鵬為. "The Formation of a Third Liquid Phase and the Phase Transfer Catalytic Reaction between N-Butyl Bromide and Sodium Phenolate Using Symmetric Quaternary Ammonium Salts as the Catalysts." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/81476356522687945365.

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碩士<br>國立成功大學<br>化學工程研究所<br>85<br>This study amied at the formation of a third liquid phase and the reaction kinetics in the third liquid phase formed in the systems of toluene/R4NBr/(NaOPh+NaOH) aqueous solution. By a series of experiments, we have found that all symmetric quaternary ammonium bromides, except for Et4NBr, can form a third liquid phase. These symmetric quaternary ammonium salts can be classified into two types, hydrophilic and hydrophobic (lipophilic). In the system containing a hydrophihc salt, the third liquid phase was formed by salting-out effect with adding NaOH. Not

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