화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.27, No.1, 45-49, February, 2016
DOI10.14478/ace.2015.1119  Export Citation
산화 그래핀에 의한 EDOT의 산화중합에 관한 연구
Study on the Oxidative Polymerization of EDOT Induced by Graphene Oxide
김민채, 박민의, 박노일, 이슬비1, 이성민1, 양소연, 최종혁, 정대원†
  • 수원대학교 공과대학 신소재공학과
  • 1(주)에버켐텍
Min Chae Kim, Min Ui Park, No Il Park, Seul Bi Lee1, Seong Min Lee1, So Yeon Yang, Jong Hyuk Choi, and Dae-won Chung†
  • Department of Polymer Engineering, College of Engineering, Suwon University, Suwon 18323, Korea
  • 1EverChemTech Co., Ltd, #313,314, Human Sky Vally, 959, Gosaek-dong, Gwonseon-gu, Suwon-si, Gyeonggi-do, 16642, Korea
E-mail:
초록
과량의 GO 및 poly(4-styrene sulfonate) (PSS)의 존재 하에서 산화제 없이 3,4-ethylenedioxythiophene (EDOT)의 in-situ 중합 반응을 시도하였다. 반응물(GO-P)의 XPS, FT-IR 등의 분석을 통하여 산화제 없이도 모노머인 EDOT의 산화중합이 원활하게 진행되어 PEDOT/PSS가 합성되고 GO와 복합화된 것을 확인할 수 있었다. GO-P는 수분산성은 우수하였으나, 전기적 절연체인 GO가 42% 포함되어 있으므로 전기전도도는 15 S.m-1로 매우 낮았다. 그러나 GO-P 필름을 200 ℃에서 8 h 열처리하면 GO의 일부분이 환원되면서 전도도가 212 S.m-1까지 향상되었다.
In the presence of poly(4-styrene sulfonate) (PSS) and excess amount of graphene oxide (GO), we conducted in-situ polymerization of 3,4-ethylenedioxythiophene (EDOT) without an oxidant. XPS and IR spectroscopies of the product (GO-P) showed that PEDOT/PSS was successfully synthesized by oxidative polymerization of EDOT and hybridized with GO. GO-P displayed a stable aqueous suspension, however, the high content (42%) of GO in GO-P diminished electrical conductivity down to 15 S.m-1. Annealing of GO-P films at 200 ℃ for 8 hr induced partial reduction of GO and finally enhanced electrical conductivity up to 212 S.m-1.
Keywords:graphene oxide;oxidative polymerization;PEDOT/PSS;3,4-ethylenedioxythiophene
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