Synthesis of Various Molecular Weight Polyaniline by Controlled Nucleation Site Number

핵심성장자리 수 조절을 통한 다양한 분자량을 갖는 폴리아닐린 합성

  • Hong, Jang Hoo (Department of Fine Chemistry, Seoul National University of Technology) ;
  • Jang, Kwan Sik (Department of Fine Chemistry, Seoul National University of Technology) ;
  • Moon, Woo Yeon (Department of Fine Chemistry, Seoul National University of Technology)
  • 홍장후 (서울산업대학교 정밀화학과) ;
  • 장관식 (서울산업대학교 정밀화학과) ;
  • 문우연 (서울산업대학교 정밀화학과)
  • Received : 2006.07.18
  • Accepted : 2006.09.06
  • Published : 2006.10.10

Abstract

Molecular weight of polyaniline is controlled in the range of oligomer to low molecular weight by controlling the ratio of aniline dimer (p-aminodiphenylamine) to monomer. Aniline dimers act as nucleation sites in chain growth during the polymerization of aniline. The molecular weights of polyanilines are estimated by GPS and relative viscosity measurement. The physical and chemical properties of polyanilines with various molecular weights are studied by UV-Vis, FT-IR, and electrical conductivity measurements.

Keywords

polyaniline;nucleation sites;dimer;reaction rate;molecular weight

Acknowledgement

Supported by : 서울산업대학교

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