서지주요정보
산화분산중합 방법에 의해 제조된 전기전도성 polyaniline-poly(methylvinylether-alt-maleicacid) 분산체의 물리적 및 전기적 성질에 관한 연구 = Study on physical and electrical properties of electrically conductive polyaniline-poly(methylvinylether-alt-maleicacid) dispersion prepared by oxidative dispersion polymerization
서명 / 저자 산화분산중합 방법에 의해 제조된 전기전도성 polyaniline-poly(methylvinylether-alt-maleicacid) 분산체의 물리적 및 전기적 성질에 관한 연구 = Study on physical and electrical properties of electrically conductive polyaniline-poly(methylvinylether-alt-maleicacid) dispersion prepared by oxidative dispersion polymerization / 구종민.
저자명 구종민 ; Koo, Chong-Min
발행사항 [대전 : 한국과학기술원, 1999].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8009410

소장위치/청구기호

학술문화관(문화관) 보존서고

MCHE 99003

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

In order to improve the processibility of Polyaniline(PANI), PANI dispersion was prepared by oxidative dispersion polymerization of aniline with poly(methyl vinyl ether-alt-maleic acid)(PMVEMA) in aqueous medium. Ammonium persulfate(APS) was used as an oxidant and PMVEMA as a steric stabilizer and auxiliary dopant. Yield, size and dispersion stability of PANI-PMVEMA dispersion and the fraction of PMVEMA adsorbed on particle were determined for different compositions of components. PANI-PMVEMA showed the increases in yield and in particle size as the ratio of APS to aniline increased up to 1. But over the ratio of 1, the yield and particle size kept constant values. As the molar ratio of PMVEMA to aniline increased, the particle size decreased. Above the ratio of 3, the particles had the uniform size and spherical shapes. PANI-PMVEMA particles had surprisingly high electrical conductivities($lapprox$1S/cm) despite the presence of the insulation outer layer of PMVEMA. PANI-PMVEMA dispersion showed smaller pH dependence than PANI-HCl. In addition, dispersion stability was studied for different pH values by Zeta Potential and UV. PANI-PMVEMA dispersion was stable in the whole range of pH except for around pH 3 which was an isoelectric point. To investigate of thermal characteristics of PANI-PMVEMA dispersion, its conductivity stability was examined at different elevated temperatures under air and the dedoping process of PANI-PMVEMA was studied by FT-IR. PANI-PMVEMA showed the decrease in conductivity with the increasing temperature, this decreasing conductivity might be due to the decrease in doping level and in effective conjugation length.

서지기타정보

서지기타정보
청구기호 {MCHE 99003
형태사항 vii, 68 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Chong-Min Koo
지도교수의 한글표기 : 정인재
지도교수의 영문표기 : In-Jae Chung
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 66-68
주제 가공성
폴리메틸비닐에테르 말레익산 공중합체
폴리아닐린 분산체
분산안정성
전기 전도도 안정성
산화분산중합
Processibility
Poly(methyl vinyl ether-alt-maleic acid)
Polyaniline dispersion
Dispersion stability
Conductivity stability
Oxidative dispersion polymerization
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