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Dissertations / Theses on the topic 'Alkyl chain'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Matts, Paul Jonathan. "Bacterial metabolism of short-chain alkyl sulphate esters." Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304974.

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2

Ghareba, Saad. "Inhibition of carbon steel corrosion by long alkyl-chain amino acid corrosion inhibitors." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104608.

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Carbon steel (CS) is the most commonly used material for equipment and pipes in the oil production processes. However, presence of water/salts and carbon dioxide, among other gases, in the oil is a serious problem due to increased corrosion rate of the material. The most common way of mitigating this problem is by using corrosion inhibitors. However, many common corrosion inhibitors that are in use today are health hazards. Therefore, there is a need to develop more environmentally compatible and biodegradable corrosion inhibitors. Bioorganic and naturally occurring molecules, such as amino ac

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3

McIntyre, Henry P. "Measurements and implications of short-chain alkyl nitrates in contemporary tropospheric and aged polar firn air." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368179.

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4

Paige, Danny R. "The synthesis, co-ordination chemistry and catalytic applications of phosphine ligands containing long-chain perfluoro-alkyl groups." Thesis, University of Leicester, 1998. http://hdl.handle.net/2381/30022.

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A review is presented of the use of catalytic liquid-liquid biphase systems containing a perfluorinated phase, commonly referred to as 'fluorous biphase systems' or F.B.S. catalysis. The phosphines PPh(3-x)(C2H4C6F13), PPh(3-x)(C6H4-p-C6F13)x and PPh(3-x)(C6H4-m-C6F13), where x = 1, 2 and 3, have been synthesised and fully characterised by 1H, 19F and 31P NMR spectroscopy, mass spectroscopy and elemental analysis, with a view to assessing their potential for use in F.B.S. catalysis. The crystal structures of O=P(C6H4-m-C6F13) and Cl-P(C6H4-o-C6F13)2 are also reported. The synthetic route to P(

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5

Wolfrum, Stefan [Verfasser], and Werner [Akademischer Betreuer] Kunz. "Long chain soaps and alkyl sulfates in aqueous solutions at room temperature / Stefan Wolfrum ; Betreuer: Werner Kunz." Regensburg : Universitätsbibliothek Regensburg, 2017. http://d-nb.info/1169931316/34.

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6

Jiang, Haiyang. "Molecular-scale effects of additives on the nucleation, growth and crystal properties of long-chain alkyl methyl-esters." Thesis, University of Leeds, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598018.

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Biodiesel is a diesel-related fuel manufactured from vegetable oils, recycled grease, or animal fats. It is technically competitive with, or offers technical advantages when compared to, conventional diesel fuel. However, the freezing and gelling behaviour of many biodiesel formulations are potentially limiting their applications. It is known that the use of additives is an efficient way to improve the cold flow properties of formulated, so it is very important to clarify the mechanism and effect of additives. Molecular cluster modelling work has been explored to study the effect of additives

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7

Harris, Alan C. Jr. "N-methyl 4-methyl amphetamine N-alkyl chain extension differentially affects ion flux at the human dopamine and norepinephrine transporters." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4440.

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Amphetamine (AMPH) and its derivatives embody a remarkable breadth of pharmacology. These molecules exert their effects, both therapeutic and pathological, at the human monoamine transporters, which tune synaptic dynamics by evacuating monoamine neuromodulators from the synapse subsequent to neuronal impulses. These transporters are electrogenic, and the transporter-mediated current can be correlated to a surrogate measure of the change in membrane voltage: Ca++ currents from co-transfected L-type Ca++ channels. The present work makes use of this assay, with which it is possible to derive phar

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8

Beyers, Cornelis Petrus. "The effect of iodo alkyl chain transfer agents on the seeded emulsion homo- and co-polimerisation of styrene and butyl acrylate." Thesis, Stellenbosch : Stellenbosch University, 1999. http://hdl.handle.net/10019.1/51467.

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Thesis (MSc) -- Stellenbosch University, 1999.<br>ENGLISH ABSTRACT: A free-radical polymerisation process, which has characteristics of a living polymerisation system, as it is capable of producing polymers of pre-determined molecular masses with a narrow molecular mass distribution, is discussed. It is also possible to make blockcopolymers by adding adding different monomers. The basic objective was to describe, discuss and explain the results of the effects of alkyl iodides as chain transfer agents on the seeded emulsion homo- and co-polymerisation of styrene and butyl acrylate. lodoa

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9

Jansson, Felicia. "Occurrence of per- and polyfluorinated alkyl substances (PFAS), including ultra-short-chain compounds. Seasonal variation in rainwater from the Swedish west coast." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-76989.

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Per- and polyfluoroalkyl substances (PFAS) are a group of highly fluorinated compounds which comprises of more than 4700 substances. A smaller number of those substances is rou-tinely measured, usually the short (C4-C7) and long chain PFAS (>C7). Detection of PFAS in different water matrices including wet precipitation have been done previously in a limited number of studies, including ultra-short chain compounds (C1-C3). Ultra-short chain com-pounds have however not been investigated to a larger extent. In this study, twelve rainwater samples from Råö have been analysed, each representing

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10

Mele, Antoni Rosell i. "Long-chain alkenone and alkyl alkenoate, and total pigment abundancies as climatic proxy-indicators in the the northeastern Atlantic : analytical methods, calibration and stratigraphy." Thesis, University of Bristol, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386102.

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11

Pankaj, Shireesh [Verfasser], Mario [Akademischer Betreuer] Beiner, Roland [Akademischer Betreuer] Weidisch, and Andreas [Akademischer Betreuer] Schönhals. "Confined dynamics, side-chain crystallization and long term behavior of nanophase separated poly(3-alkyl thiophenes) / Shireesh Pankaj. Betreuer: Mario Beiner ; Roland Weidisch ; Andreas Schönhals." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2011. http://d-nb.info/1025201795/34.

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12

Namal, Imge. "Synthesis And Electrochemical Studies Of Fluorene And Benzimidazole Containing Conjugated Polymers." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615382/index.pdf.

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The synthesis and characterization of two donor acceptor type conjugated polymers were investigated. The electrochemical properties were examined using cyclic voltammetry, spectroelectrochemistry and kinetic studies. The increase in the alkyl chain length attached to the fluorene unit was investigated by the corresponding electrochemical characteristics. The synthesis was carried out via Stille coupling of 4,7- dibromo-4&#039<br>-(tert-butyl)spiro[benzo[d]imidazole-2,1&#039<br>cyclohexane] and 2,5- bis(tributylstannyl)thiophene with 9,9-dihexyl-9H fluorene and 9,9-didodecyl-9H fluorene respect

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13

Smith, Nicholas A. "Molecular Traps Formed By Alkyl Chains Within Self-Assembled Nanostructures." Thesis, University of Nottingham, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.523647.

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14

Oliveira, Maria Rita Perez de. "Estudo das condições de hidrólise de álcoois primários sulfatados." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-19072011-165944/.

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Álcoois primários sulfatados de cadeia longa, usualmente na forma de sais de sódio, são tensoativos de grande interesse comercial utilizados em diversas formulações de higiene pessoal e limpeza doméstica. Eles são produzidos comercialmente através da reação de álcoois etoxilados com trióxido de enxofre seguida de imediata neutralização com hidróxido de sódio. O produto formado é uma solução neutra de álcool primário etoxilado sulfatado em água. Sabe-se que a armazenagem desse produto por longos períodos de tempo em temperaturas elevadas pode levar à hidrólise completa, mas, em condições normai

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15

Meurs, Martin van. "Catalysed chain growth on zinc alkyls and chain trnsfer reactions in transition metal catalysed olefin polymerisation." Thesis, Imperial College London, 2005. http://hdl.handle.net/10044/1/8180.

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16

Prasad, Shishir. "MOLECULAR STUDY OF THE SURFACE FREEZING PHENOMENON IN MATERIALS CONTAINING LONG ALKYL CHAINS." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1191522340.

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17

Cosquer, Guirec Yann. "Liquid crystals with novel terminal chains as ferroelectric liquid crystal hosts." Thesis, University of Hull, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322457.

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18

Patil, Shradha Vasant. "Radical additions of hydrocarbons, ethers and acetals to alkenes via allyl transfer reaction: A new chain reaction for C-H bond functionalization." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/50658.

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Functionalization of hydrocarbons via a free-radical based allyl transfer reaction using various allyl bromide substrates has been previously studied. The work described in this dissertation focuses on the replacement of Br by phthalimido-N-oxyl (PINO ) which helps make this chemistry environmentally friendly. To replace Br with PINO , replacement of previously used allyl-bromide substrates with new allyl-PINO substrates were necessary. Various allyl- PINO compounds were synthesized and the use of these allyl-phthalimido-N-oxyl (allyl-PINO) compounds for the functionalization of various alky

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19

Hermes, Anja. "Pincer-Liganden mit fluorierten Alkylketten." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17100.

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Die vorliegende Arbeit beschäftigt sich mit der Synthese von Pincer-Ligandenvor-läufern mit fluorierten Alkylketten –(CH2)2Rf6 (Rf6 = C6F13) an Sauerstoff- bzw. Phosphorhaftatomen. Darüber hinaus stehen die Bildung hochfluorierter Lithium-, Palladium-, Ruthenium- sowie Aluminium-Pincer-Komplexe und die Reaktivitäts-studien für diese neuartigen Komplexe im Fokus. Für vergleichende Untersuchungen war ebenso die Synthese der analogen, nicht fluorierten Verbindungen von Interesse. Eine Mischung aus in situ hergestelltem (NC5H3)-1,3-(CH2P((CH2)2(CF2)5CF3)2)2 (13) und [Ru(2Me-C3H4)2(cod)] kann die

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20

Gaudin, Jean-Marc. "Synthèses sélectives à l'aide de complexes du Palladium(0) : élaboration de chaine latérale de stéroïde (glaucastérol), phéromones et alpha-amino esters d'intérêts biologiques." Paris 6, 1986. http://www.theses.fr/1986PA066536.

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Ce travail porte sur l'utilisation de complexe du palladium (0) en catalyse homogène pour la synthèse de molécules d'intérêts biologiques. Trois applications y sont décrites: - la synthèse d'une phéromone secrétée par la reine des abeilles et d'une hormone végétale : l'acide traumatique. La construction du squelette carbone de ces molécules est basée sur une double alkylation d'une bis (aryl sulfonyl) méthane, l'une d'entre elles faisant intervenir un complexe eta (3) allyl palladien fonctionnalisé ; - la synthèse d'alpha-amino esters susceptibles d'être utilisés comme inhibiteur d'enzyme. Cec

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21

Dagoneau, Christelle. "Chimie des nitrones : application à la synthèse de composés bio-actifs." Université Joseph Fourier (Grenoble), 2001. http://www.theses.fr/2001GRE10102.

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Ce travail de these porte sur l'elaboration de methodes d'acces aux -aminoesters ,-satures et ,-dihydroxyles, a partir de nitrones. L'addition nucleophile de 3-lithiopropiolates d'alkyle sur ces dernieres constitue la reaction-clef des differentes strategies employees. Au cours de ce travail, nous avons mis au point une methode de synthese rapide et efficace de -aminoesters. L'application de cette strategie de synthese a la nitrone derivee du (s)-glyceraldehyde a permis d'acceder de facon stereoselective au (s)-vigabatrin, compose actif du sabril, medicament largement utilise dans la preventio

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22

Yen, Ping-Chung, and 顏鍾. "EFFECT OF THE LENGTH OF ACHIRAL ALKYL CHAIN AND TERMINAL BRANCHED ALKYL CHAIN OF CHIRAL LIQUID CRYSTALS ON THE STABILITY OF TGBA* PHASE." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/11565941195493741036.

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23

Lee, Chia-Chun, and 李佳駿. "Dyeing Polylactic Acid Fabrics with Long Chain Alkyl Disperse Dyestuffs." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/00174894853836604135.

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碩士<br>逢甲大學<br>紡織工程所<br>94<br>Polylactic acid fibers have properties that are high crystallization, good flexibility, heat-resistant and very durable. This product has superior performance and may replace polyester fibers in daily use. The main advantage is that polylactic acid fibers are biodegradable. On disposal a microorganism will be released to allow fermentation and breakdown the high polymer chain within the fiber. It will decompose causing non-crystallization of the fiber that then becomes a low molecular compound. It will crack the fiber and the surface will corrode and wrinkle. Fina

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24

HSUEN, CHEN SHIH, and 陳世學. "Syntheses and Properties of Polyimides Containing Linear Alkyl Side Chain." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/75789576607613928890.

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碩士<br>中原大學<br>化學工程研究所<br>89<br>Aromatic polyimides have been widely used in microelectronic and space industries due to their excellent thermal stability, good electronic properties and easy preparation. In this study, a series of diamines containing alkyl side arm in varying chain length has been synthesized by the Grignard coupling reaction of 1,1’-diphenylbromomethane and linear alkyl bromide. Then, two series of polyimides were fabricated by thermal imidization of the poly (amic acid)s prepared from the polyaddition of these novel diamines with benzo- phenoneteracarboxylic dianhydride (BTD

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25

Lin, Fon-Chi, and 林豊棋. "Dyeing of polypropylene Microfiber with Long Chain Alkyl Disperse Dyes." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/wm9267.

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碩士<br>逢甲大學<br>紡織工程所<br>91<br>In accordance with the description stated above, we’ll synthesis some diazo disperse dyes coupling with long alkyl chain or containing intra molecular hydrogen bond to dye polypropylene fiber. Effective Van der Waal’s force will form between dye and fiber because of the good planar structure of dye and chain parallel of each other. In another aspect, better fastness can be obtained as dyeing process was completed and large dye molecules were trapped within fibers. But these dyes still need efficient dyeing medium to transport them into polypropylene fibers. We fo

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26

Ming, Wang Fu, and 王復民. "Synthesis and Charaterization of Polyimides with long alkyl side chain group." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/10788980179509405012.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>92<br>A series of new polyimides, containing pendant long alkyl side chain groups were prepared via the solution condensation of aromatic diahydrides with 2,2’-bis(2-hexloxyphenoxy)-5,5’-diaminobiphenyl, 2,2’-bis(3-octadecyloxyphenoxy)-5,5’-diaminobiphenyl, and 2,2’-bis(2-octadecyloxyphenoxy)-5,5’-diaminobiphenyl. The inherent viscosities, solubility properties and thermal properties of the polyimides were investigated. First, the poly(amic acid)s derived from 2,2’-bis(3-octadecyloxyphenoxy)-5,5’-diaminobiphenyl, had inherent of 0.15~0.21 dL/g. The DMA

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27

Barman, Sudip. "Structure, Organization And Phase Transitions In Anchored Alkyl Chain Bilayers In Layered Organic-Inorganic Hybrids." Thesis, 2006. https://etd.iisc.ac.in/handle/2005/451.

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This thesis deals with the conformation and phase-transitions in anchored alkyl chain bilayer assemblies in organic-inorganic hybrids. The alkyl chain bilayers in organic-inorganic hybrids bear a striking resemblances to the lipid bilayers that are an integral part of biomembranes. However, unlike the lipid bilayer where individual lipid molecules can undergo the total absence of translational mobility. The anchored bilayer are, therefore, the simplest model system for understanding the structure, organization and thermal behaviour of alkyl-chain assemblies. The anchored bilayer in the organic

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28

Barman, Sudip. "Structure, Organization And Phase Transitions In Anchored Alkyl Chain Bilayers In Layered Organic-Inorganic Hybrids." Thesis, 2006. http://hdl.handle.net/2005/451.

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This thesis deals with the conformation and phase-transitions in anchored alkyl chain bilayer assemblies in organic-inorganic hybrids. The alkyl chain bilayers in organic-inorganic hybrids bear a striking resemblances to the lipid bilayers that are an integral part of biomembranes. However, unlike the lipid bilayer where individual lipid molecules can undergo the total absence of translational mobility. The anchored bilayer are, therefore, the simplest model system for understanding the structure, organization and thermal behaviour of alkyl-chain assemblies. The anchored bilayer in the organic

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29

Cheng, Te-Sheng, and 鄭德勝. "EFFECT OF THE LENGTH OF ACHIRAL ALKYL CHAIN, TERMINAL ALKYL CHAIN AND THE RIGID CORE STRUCTURE OF OXYGEN-CONTAINING CHIRAL LIQUID CRYSTALS ON THE STABILITY OF FRUSTRATED PHASES." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/44722884029684878540.

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碩士<br>大同工學院<br>化學工程學系<br>85<br>Chiral (R)- and (S)-3-alkoxy-2-methylpropionic acids were synthesized as building blocks for the preparation of chiral liquid crystalline materials. The investigation about the effect of molecular structures on the mesophases and mesomorphic properties was divided into three parts. The first part was to synthesize a homologous series of (R)-6-(3- ethoxy-2-methylpropionyloxy)-2- naphthyl 4- alkoxybenzoates , (R)EMPNmB (m=6~13) , in order to u

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30

Zheng, De-Sheng, and 鄭德勝. "EFFECT OF THE LENGTH OF ACHIRAL ALKYL CHAIN, TERMINAL ALKYL CHAIN AND THE RIGID CORE STRUCTURE OF OXYGEN-CONTAINING CHIRAL LIQUID CRYSTALS ON THE STABILITY OF FRUSTRATED PHASES." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/00558674379637586241.

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31

Liu, Kang Ming, and 劉康民. "Long-Linear Alkyl Chain Diamine Templated Gallium Phosphate Structures and Afterglow Properties." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/11974271042058723594.

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碩士<br>國立清華大學<br>化學系<br>104<br>The thesis is forcing on the study of afterglow properties for two categories of phosphate compounds. They were synthesized using long-linear alkyl chain diamines under hydrothermal conditions. Three compounds are presented, all were structurally characterized in detail by single-crystal X-ray diffraction methods to facilitate elucidation of the structure-property relationships. By UV-light excitations, one would display fluorescence in green while the other two in yellow. Remained emissions were observed for some time after removal of the UV-light source for all

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32

Shih, Tong-Cheng, and 施宗成. "The Morphology and Phase Behavior of Polypyrrole with Alkyl-group Side Chain on the." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/57042566511367355402.

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碩士<br>國立中山大學<br>材料科學研究所<br>88<br>Attaching soft long side chain on conjugated polymers will form liguid cystal structure. Our research is to synthesis the polypyrrole with alkyl chains on nitrogen site and carbon site and observe the effects. We observe the phase transition by X-ray and DSC. But it is hrad to observe because of its absorbing light. Between observing, we just can find the liguid crystal transition on the polypyrrole with octadecane alkyl side chain on nitrogen site. Besides, we can find the 2.8Å and 3.2Å peaks By shearing and solvent casting. Such a phenomenon is common in conj

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33

Ko, Ling-Chieh, and 柯玲潔. "Protein Refolding by Dual-Functional Adsorbents : The Choice of Hydrophobic Alkyl Chain Length and Density." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/93723977901312196816.

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碩士<br>中原大學<br>化學工程研究所<br>94<br>Three α-amylases from different origins are refolded by the assistance of a novel dual-functional adsorbent containing both ionic carboxylic and hydrophobic alkyl groups. Both batch adsorption/ desorption and chromatographic operations were performed and achieved the similar level of refolding yield. The effects of alkyl density, alkyl chain length, adsorption condition and protein hydrophobicity on refolding yield were under investigation. The three α-amylases used in this study are: Bacillus amyloliquen- faciens α-amylase (BAA), Bacillus licheniformis α-amylas

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Lee, Chin-Han, та 李金翰. "Alkyl Chain Length Effects on the Vapochromic Fluorescence Properties of Pentiptycene Derived π-Conjugated Systems". Thesis, 2018. http://ndltd.ncl.edu.tw/handle/py9v2x.

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碩士<br>國立臺灣大學<br>化學研究所<br>106<br>Stimuli-responsive fluorescence properties, such as thermofluorochromism (TFC), mechanofluorochromism (MFC) and vapofluorochromism (VFC), of organic molecules are attractive because of their potential application as fluorescent sensors toward temperature, pressure, and organic vapors. A pentiptycene-derived π-conjugated molecule 9,10-An-C8, which is composed of an anthracene group and two pentiptycene moieties, has been previously reported to exhibit MFC and VFC properties in its solid state. The MFC behavior of 9,10-An-C8 was induced by excimer/monomer transfor

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35

Liao, Yu-Ching, and 廖育慶. "Effect of Long Alkyl Chain Imidazolium Ionic Liquids on the Physicochemical Properties of DNA–Liposome Complexes." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/12328509239138981925.

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碩士<br>國立雲林科技大學<br>化學工程與材料工程系<br>102<br>The physicochemical characteristics of liposomes composed of hydrogenated soybean phosphatidylcholine (HSPC), egg phosphatidylcholine (EPC), and 1-hexadecyl- 3-methylimidazolium ionic liquids (C16ILs) were studied by dynamic light scattering (DLS), transmission electron microscopy (TEM), ﬂuorescence polarization, differential scanning calorimeter (DSC), Langmuir trough and fluorescence microscopy. In mixed HSPC/EPC/C16ILs bilayer at the various molar fractions, the incorporation of increasing quantities of EPC progressively increased intermolecular fluidi

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36

Zhan, Fu-Kai, and 詹富凱. "The Effects of Alkyl Chain Length and Aggregation-Induced Emission Chromophore on Organic Self-Assembled Nanomaterials." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/36986890510788709767.

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碩士<br>國立交通大學<br>材料科學與工程學系所<br>104<br>Recently, research of molecules behavior gradually matured, further controlling strength or weakness of molecular interaction, which is the origin of self assembly materials. The first part in my study, we discussed the effect of changing alkyl chain length on naphthalene diimide (NDI) to dipeptide self assembly. We chose methylamine、ethylamine、n-propylamine、n-butylamine and n-octylamine to be the aliphatic chain length on naphthalene diimide, connecting tyrosine and phenylalanine as peptide sequence to improve the value of application. In addition, we disc

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37

Liu, Pai Heng, and 劉佰亨. "Alkyl Chain-Containing O-Bound DNICs and di-Reduced RREs: Insight into Reactivity, Chemical and Physical Property." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/17468282855486335146.

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38

Sun, Ray, and 孫瑞. "Effects of Incorporating Salts with Various Alkyl Chain Lengths on Carrier Balance of Light-Emitting Electrochemical Cells." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/84993655143517552437.

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碩士<br>國立交通大學<br>影像與生醫光電研究所<br>102<br>Recently, solid-state light-emitting electrochemical cells (LECs) have attracted much attention since they have advantages such as low operation voltages, simple device structure and balanced carrier injection. Salts are commonly added in the emissive layer of LECs to provide additional mobile ions and thus to accelerate device response. However, in addition to modified ionic property, carrier balance of LECs would also be tailored by salt additives. In this work, we improve brightness and efficiency of LECs by incorporating imidazole-based salts bearing va

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39

黃瑞庸. "Synthesis of long chain N-alkyl pyridone azo disperse dyes and study of dyeing affinity and diffusion coefficient." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/81174236346246331458.

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Huang, Yung Jie, and 黃永杰. "1.The synthesis of external double bond luminant molecules via Claisen Rearrangement2.Surface Modification of Nylon 66 and Cotton Fabrics with Copolymer containing long chain Alkyl or Fluorinated Alkyl Groups." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/79584279558141679428.

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碩士<br>國立臺北科技大學<br>化學工程所<br>93<br>1.In this study, main chain of 4,4''-Biphenol combine different side chains to discuss polymer(A) ~ polymer(I) which synthesizes by the difference of structure of 1-Bromobutane、1-Bromoocatane、1-Bromododecane.To examinate luminance property and judge the correction for the structure of polymer(A) ~ polymer(I) by FT-IR、NMR-1H、UV、PL, in the meanwhile,to investigate into radiation wavelength under the condition of different side chains. The results showed that it is do stable since the resonance of external carbon double bond and benzene from isolate to conjugate t

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Li, Chia, and 李佳. "Application of ruthenium-based dye with long alkyl chain using cobalt tris(bipyridine) electrolyte in dye sensitized solar cells." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/25885643324426282923.

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碩士<br>國立中央大學<br>化學學系<br>102<br>Dye-sensitized solar cells (DSSCs), one of the third generation solar cells, are getting more popular these days, due to their light weight, low cost and easy to make. In DSSCs, electrolyte plays the role of re- generating the oxidized dye, transferring hole to the counter electrode and determining the theoretical Voc of the devices. The most common electrolyte used in DSSCs is iodide/triiodide (I-/I3-) redox couple. However, I-/I3- redox system has some disadvantages, such as the fixed redox potential and the structure of the electrolyte can not be modified, whi

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Chen, Wei-Cheng, and 陳威誠. "Effect of Varying the Alkyl Chain Lengths and Core Structures of Liquid Crystal Molecules on the Formation of Blue Phases." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/t9rx4r.

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碩士<br>大同大學<br>化學工程學系(所)<br>99<br>The primary research work of this study is an attempt to correlate the structure-property relationship of the formation of blue phases in chiral liquid crystals in terms of variation of the achiral alkyl chain length (m), chiral alkyl chain length (n), structure of the rigid core, and achiral alkyl chain length (m) without ether linkage in the chiral liquid crystal materials. Thus, the optically active alcohols, 1-ethyloxy-2-propanol, 1-propyloxy-2-propanol, 1-butyloxy-2-propanol, 1-pentyloxy-2-propanol, 1-hexyloxy-2-propanol, were designed and synthesized by r

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Ke-WeiHsiao and 蕭哿葳. "Investigating molecular packing characteristics of mixed ion pair amphiphile/additive Langmuir monolayers by infrared spectroscopy : The alkyl chain symmetry effect." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/p8d6yd.

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碩士<br>國立成功大學<br>化學工程學系<br>104<br>The molecular packing characteristics of IPA monolayers with addition of dioctadecyldimethylammonium bromide (DODAB) and cholesterol at the air/water interface were analyzed with the infrared reflection-absorption spectroscopy. In this study, two IPAs, hexadecyltrimethylammonium-hexadecylsulfate (HTMA-HS) and hexadecyltrimethylammonium-dodecylsulfate (HTMA-DS) were adopted. The results showed that the hydrophobic tails of HTMA-DS would have a higher degree of freedom than that of HTMA-HS. The addition of DODAB would cause displacement behavior, resulting in a m

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Ni, Jen-Shyang, and 倪偵翔. "Synthesis and Applications of Tethering Single Alkyl-chain type and Crosslinkable type Ruthenium Complex Dyes on Dye-sensitized Solar Cells." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/49350671634467346496.

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博士<br>國立臺灣大學<br>高分子科學與工程學研究所<br>101<br>Dye-sensitized solar cells (DSSC), composed of working electrode, dye, electrolyte and counter electrode, have the highest power conversion efficiency among the organic solar cells at present. Notably, the ruthenium complex dyes play the most important role for separating the electron-hole pair by exciting the dye with light. In this research, by modifying the bipyridine ligand of the ruthenium complex with single alkyl-chain or crosslinkable functional group, we investigated the relation between molecular structure and photovoltaic performance of DSSC.

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Lin, Huna-Gang, and 林煥剛. "The electro-optical characteristics of vertical alignment copolymers film for liquid crystal devices with different alkyl group side chain length." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/80758375097734418432.

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碩士<br>國立臺灣科技大學<br>高分子系<br>97<br>The purpose of this study is to develop an new type vertical alignment mode of liquid crystal device. In a test cell, the proper ratio mixed n-type liquid crystal, two kinds of acrylic monomer and photoinitiator form theupper and lower double layers of vertical alignment film due to phase separation just by UV light but by coating alignment agent and rubbing. Beside,in this study,we also characterizes the optical-electro properties of the liquid crystal molecules under VA mode such as transmittance, contrast ratio and response time etc..

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Chia-ChiChang and 張家綺. "Physical properties of catanionic vesicles prepared from a triple-chained ion pair amphiphile with alkyl chain lengths of 16-16-12." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/u2asaa.

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碩士<br>國立成功大學<br>化學工程學系<br>104<br>In this study, the formation behavior of catanionic vesicles from a triple-chained ion pair amphiphile (IPA) was investigated by size, zeta potential, fluorescence polarization and infrared spectroscopy analyses. The IPA, dihexadecyldimethylammonium-dodecylsulfate (DHDA-DS), was obtained as precipitate from mixed aqueous solutions of anionic surfactant, sodium dodecylsulfate, and cationic surfactant, dihexadecyldimethylammonium bromide. Stable catanionic vesicles with a lifetime more than 360-day could be fabricated from DHDA-DS without additives. Whether the z

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Chia-YaoTseng and 曾珈瑤. "Effects of alkyl chain length on the mixed Langmuir monolayer behavior of ion pair amphiphile/cholesterol with double-chained cationic surfactants." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/88948837921588418301.

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碩士<br>國立成功大學<br>化學工程學系碩博士班<br>98<br>In this study, mixed Langmuir monolayer behavior of ion pair amphiphile (IPA), hexadecyltrimethylammonium-dodecylsulfate (HTMA-DS), with various additives was investigated by surface pressure-area and surface potential-area isotherms, relaxation curves, and Brewster angle microscopy (BAM) images. The purpose is to understand the effects of alkyl chain length and molar fraction of dialkyldimethylammonium bromide (DXDAB) on the molecular interaction in the HTMA-DS and HTMA-DS/cholesterol monolayers and on the corresponding mixed monolayer stability. The is

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Sie, Bing-hung, and 謝秉宏. "Study on the Effect of Semi-fluorinated Alkyl Chain Length on the Mesomopic Phase of Chiral Liquid Crystals containing Naphthalene Core." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/41516786290870875646.

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碩士<br>大同大學<br>化學工程學系(所)<br>96<br>Optically active alcohols, (S)-1-(2,2,2-trifluoroethoxy)-2-butanol, (S)-1-(2,2,3,3,3-pentafluoropropoxy)-2-butanol and (S)-1-(2,2,3,3,4,4,4-heptafluorobutoxy)-2-butanol, were designed and synthesized by the treatment of (S)-butylene oxide with fluorinated alchols under basic condition. Five novel homologous series of chiral fluorinated materials derived from these alcohols, (R)-1-(2,2,2-trifluoroethoxy)-2-butanol, (R)-1-(2,2,3,3,3-pentafluoropropoxy)-2-butanol, and (R)-1-(2,2,3,3,4,4,4-heptafluorobutoxy)-2-butanol, were than synthesized for the investigation co

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Chu, Yu-Wen, and 朱裕文. "Study on Formation of Blue Phases from the Branched Alkyl Chain and Swallow-Tailed Chiral Liquid Crystals and the Binary Mixture." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/60690138142322492394.

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碩士<br>大同大學<br>化學工程學系(所)<br>100<br>A few of liquid crystal materials exhibiting blue phases have been reported in a single compound, moreover, the blue phases in the materials possess a very small temperature range (calc. 1-2℃), mainly because of the blue phases are frustration phases. Thus, in order to find more of blue phase materials and shed light on the relationship between molecule structure and the formation of blue phases, in this work, we designed and synthesized eight series of compounds derive from optically active alcohol, according to the previous results from our laboratory, fo

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Chang, Chih-Hsuan, and 張誌軒. "Synthesis and Investigation of T-shaped and Rod-like Liquid Crystal Materials with Branched Alkyl Chain and Swallow-Tailed Chiral Groups." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/35313045050259160597.

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碩士<br>大同大學<br>化學工程學系(所)<br>100<br>This study is divided into three parts, to study the mesomorphic properties of the T-shaped and rod-like liquid crystals with chiral swallow-tail derived from optically active (S)-lactic acid by changing chiral alkyl chain length. In addition, binary mixtures prepared from different rod- like liquid crystals are investigated. In the first part, the results of all of T-shaped compound Tmn with various alkyl chain length of swallow tail exhibit only SmA* mesophases. In the second part, when extending the alkyl chain length of chiral greater than 2, the N* and TG

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