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Dissertations / Theses on the topic 'Methoxyanillne'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Shrestha, Roshan Prasad Irene Eugene A. "A study of optical and electronic properties of a semiconducting polymer, poly(o-methoxyaniline)." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2006. http://dc.lib.unc.edu/u?/etd,250.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2006.<br>Title from electronic title page (viewed Oct. 10, 2007). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Chemistry." Discipline: Chemistry; Department/School: Chemistry.

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2

Raposo, Maria de Fátima Guerreiro da Silva Campos. "Processos de adsorção em filmes automontados de poli(o-metoxianilina): evidência de pontes de hidrogênio além da interação iônica." Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-18112014-114357/.

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Neste trabalho foram estudados filmes automontados de poli(ometoxianilina) (POMA) e de poli(ácido vinilsulfônico) (PVS). Os filmes automontados de POMA/PVS podem crescer linearmente com o número de bicamadas sem que cada camada fique completamente adsorvida desde que o tempo de adsorção seja mantido constante. A cinética de adsorção de uma camada de POMA sobre diferentes substratos sólidos e sobre bicamadas de POMA/PVS já depositadas foi associada a dois processos: um muito rápido, de primeira ordem, e um mais lento controlado por difusão de Johnson-Mehl-Avrami, correspondendo, respectivamente

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3

Souza, Nara Cristina de. "Adsorção de poli(o-metoxianilina) em filmes automontados." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-31032014-094934/.

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Neste trabalho foram estudadas as propriedades de adsorção de poli(omethoxianilina) (POMA) em filmes automontados, nos quais camadas de POMA foram alternadas com camadas de ácido polivinil sulfônico (PVS). Devido à baixa solubilidade da POMA, o método de preparação das soluções aquosas de POMA interfere nas características da adsorção. Para POMA com controle de massa molar, que contém fração de alta massa, a cinética de adsorção de uma camada de POMA em filmes de POMAlPVS obedece a um processo de dois estágios. O primeiro é um processo de primeira ordem enquanto o segundo é descrito pela funçã

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4

Sanches, Edgar Aparecido. "Estudos de XRD e SAXS aplicados à Polianilina e à Poli(o-metoxianilina)." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-12052011-171806/.

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A Polianilina (PANI) e os polímeros derivados da anilina têm recebido grande atenção devido às suas aplicações tecnológicas. A introdução de grupos funcionais polares e de grupos alquila à cadeia principal da PANI é um artifício para se obter polímeros solúveis em uma maior variedade de solventes orgânicos. A Poli(o-metoxianilina) (POMA) é um dos derivados da PANI e sua diferença estrutural está na presença do grupo (-OCH3) na posição orto dos anéis de carbono, sendo bastante estudada na forma de pó ou de filmes para as mais diversas aplicações. Apesar do grande número de trabalhos realizados

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5

Guerra, Elidia Maria. "Preparação e caracterização de pentóxido de vanádio mesoporoso e reações de intercalação." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-25092007-110244/.

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A obtenção de pentóxido de vanádio mesoporoso, bem como a síntese, caracterização e estudo das propriedades de novos compostos híbridos, formado a partir do xerogel de pentóxido de vanádio e do pentóxido de vanádio mesoporoso, intercalados com espécies convidadas, foram os objetivos desta tese. O interesse nestes materiais, que apresentam uma considerável gama de modificações estruturais e químicas, é devido a possibilidade de arquitetar propriedades específicas e produzir novos materiais visando aplicações em óptica, catálise, dispositivos eletrônicos e sensores. Os compostos híbridos foram o

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6

Huang, Chen Jso, and 黃乾座. "Resonant two-photon ionization and mass-analyzed threshold ionization spectroscopy of the selected rotamers of m-methoxyaniline and o-methoxyaniline." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/38711976217865132134.

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碩士<br>國立臺灣師範大學<br>化學系<br>95<br>We applied the high-resolution resonant two-photon ionization and mass-analyzed threshold ionization spectroscopy to study the molecular properties of m-methoxyaniline and o-methoxyaniline. m-Methoxyaniline has two rotamers. The origins of the S1 ← S0 electronic transition (E1’s) of the cis and trans rotamers are measured to be 34308 ± 2 and 34495 ± 2 cm-1 and their corresponding adiabatic ionization energies (IEs) are 59983 ± 5 and 60879 ± 5 cm-1, respetively. o-Methoxyaniline is found to have only one stable structure whose E1 and IE are determined to be 33875

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7

Hsieh, Mu-Fong, and 謝沐峰. "Study of Electrospun Poly (o-methoxyaniline) Nanofibers for Tissue Engineering." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/19622953230243358309.

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碩士<br>中原大學<br>醫學工程研究所<br>97<br>Abstract Conducting polymers have both the physical and chemical characteristics of organic polymer as well as the conductivity of metals, which make them suitable to be used as photoelectric or biosensing materials. The purpose of the research was to study the biocompatibility of electrospinning poly o-methylaniline nanofiber and the feasibility for tissue engineering application. According to the SEM images, the diameter of poly o-methylaniline nanofiber was between 200 and 300 nm. Contact angle was 104 ± 8¬ o, which made its surface hydrophobic. Thermograv

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8

Lin, Kuan-Yi, and 林冠鎰. "Electrospun Electroactive Poly-(o-methoxyaniline)/Gelatin Fibers with Potential Application in Tissue Engineering." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/01603440488460117176.

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碩士<br>中原大學<br>生物醫學工程研究所<br>100<br>Composite scaffold prepared by electrospinning technology can provide extracellular matrix-like environment, large surface area, high porosity, and multifunctionality, thus increases their application in tissue engineering. The purpose of this study was to enhance the biocompatibility of electrospun poly(o-methoxyaniline) (POMA) fibers and to explore its potential for tissue engineering application. Average molecular weight of POMA synthesized in this study was 45880 Dalton. Viscosity of the solution for electrospinning increased rapidly to 71.9 cP within 20-m

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Chin, Chih-Ping, and 秦治平. "Preparation and Properties of Poly(o-methoxyaniline)-Clay as well asPolypyrrole -Clay Nanocomposite Materials." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/24652924169562610907.

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碩士<br>中原大學<br>化學研究所<br>90<br>The major research purpose of this thesis contains two fractions. In the first fraction：a series of polymer-clay nanocomposite (PCN) materials that consisted of emeraldine base of poly(o-methoxyaniline) (PMA) and layered montmorillonite (MMT) clay were prepared by effectively dispersing the inorganic nanolayers of MMT clay in organic PMA matrix via in-situ oxidative polymerization. Organic o-methoxyaniline monomers were first intercalated into the interlayer regions of organophilic clay hosts and followed by an one-step oxidative polymerization. The as-synthesize

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10

Teng, I.-Jang, and 鄧懿讓. "The Properties of Poly(o-methoxyaniline)/Graphene Nanocomposite Prepared by In Situ Oxidative Polymerization Method." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/42305703121792345124.

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碩士<br>輔仁大學<br>化學系<br>102<br>In this study, an organic functionalized graphene oxide (FGO) was modified with an o-methoxyaniline monomer, and then a series of poly(o-methoxyaniline) (POMA)/graphene-based nanocomposites were prepared by using an in situ oxidative polymerization method. The FGO and as-prepared nanocomposits were characterized by Fourier transform infrared (FTIR) spectroscopy, wide-angle powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The intercalated layers of FGO appeared with parallel orientation in the polymer

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11

Kuo, Tai-Hung, and 郭泰宏. "Preparation and Property Studies of Poly(o-methoxyaniline-DBSA)/Clay Nanocomposites and Copolyacrylate-Ag Particle Nanocomposites." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/93239860120147276733.

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碩士<br>中原大學<br>化學研究所<br>94<br>Abstract This thesis involed two parts : First, emulsion polymerization has been empolyed for the synthesis of polymer–clay nanocomposite(PCN) , which can be dissolved in common organic solvents such as NMP. Ammonium Peroxodisulfate is regarded as the oxidizing agent. Dodecylbenzenesulfonic acid (DBSA) has been selected as the dopant since it also functioned as the surfactant. Firstly, o-methoxyaniline monomer and DBSA were formed (o-methoxyaniline-DBSA) complex. Furthermore, the complex permeated in layers of montmorillonite and starts process of polymerization a

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12

Huang, Ting-Yu, and 黃婷郁. "Preparation and Characterization of High Surface Area Biomimetic Poly(ortho-methoxyaniline) Substrate for Neural Stem Cells Behavior." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/78064635049366060951.

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碩士<br>中原大學<br>化學研究所<br>103<br>In this study, we synthesized a polymer, poly(ortho-methoxyaniline) (POMA), by chemical oxidative polymerization. The weight-average molecular weight ( ) and structure were characterized by gel permeation chromatography (GPC) and Fourier transform infrared spectroscopy (FT-IR), respectively. POMA was dissolved in N-methyl-2-pyrrolidone (NMP) and the biomimetic POMA substrate was fabricated by using a transparent polydimethylsiloxane (PDMS) as template with negative patterns of a Xanthosoma sagittifolium leaf. The multiscale papilla-like and nanoscale texture incre

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13

HSU, YU-CHIEN, and 徐語謙. "Poly(o-methoxyaniline) and its Graphene-based Composite Materials Fabricated as Counter Electrodes of Dye Sensitized Solar Cells." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ub34me.

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碩士<br>輔仁大學<br>化學系<br>105<br>Dye-sensitized solar cells (DSSCs) have the advantages of simple process, high efficiency, and low cost. DSSCs have been investigated extensively due to their various features and merits for applications in renewable energy. However, Pt is an expensive metal element and may limit the DSSC applications.As such, replacing the expensive Pt with other materials having the required electrochemical properties for the counter electrode will be much welcome. There are two parts in this thesis. First, a conductive polymer poly(o-methoxyaniline) (POMA) doped with an organic a

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14

Yi-Fan, Lu, та 呂翊帆. "The Study of the Application of Random and Aligned Poly(o-methoxyaniline)/Poly(ε-caprolactone) Electrospun Fibers in Tissue Engineering". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/4q95ka.

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碩士<br>中原大學<br>生物醫學工程研究所<br>104<br>The specific aims of this study were to prepare random and aligned composite nanofibers containing camphorsulfonic acid (CPSA) doped poly(o-methoxyaniline) (POMA) and poly(ε-caprolactone) (PCL) by electrospinning technique as well as explore biocompatibility of electrospun nanofibers with cardiac myoblast (H9c2). The diameter of POMA nanofiber was 219±53 nm as shown by scanning electron microscopy (SEM). Nanofiber diameter increased with increasing PCL content but decreased with CPSA doping and aligned electrospinning process. Contact angle analysis found that

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Tsai, Chi-Jung, та 蔡季蓉. "The Study of Neuronal Differentiation of Rat Bone Marrow Mesenchymal Stem Cells on Poly-(o-methoxyaniline) / Poly(ε-caprolactone) Coaxial Electrospun Fibers". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/p9g4jw.

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碩士<br>中原大學<br>生物醫學工程研究所<br>104<br>Conductive polymers such as polyaniline and polypyrrole are known for their difficulty for fiber processing. With coaxial electrospinning, core-shell fibers may comprise of an electrospinnable core material and a non-electrospinnable shell material. Here, core–shell structured poly(ε-caprolactone) (PCL)-poly(o-methoxyaniline) (POMA) (PA/PC) nanofibers were successfully prepared by coaxial electrospinning technique. PA/PC fibers were doped with camphorsulfonic acid (CPSA) to form C-PA/PC nanofibers. Cell proliferation and neural differentiation of mesenchymal s

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