Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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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
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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.

사슬성장의 핵심생성자리인 dimer (p-aminodiphenylamine)의 비율을 조절하여 아닐린 중합반응 과정에 첨가함으로서 oligomer에서 저분자량(Mw~40000)까지의 폴리아닐린 분자량이 조절되었다. 상대점도분자량 및 GPS 측정을 통하여 합성된 폴리아닐린의 분자량을 확인하였으며, UV, FT-IR, 전기전도도 등을 측정하여 분자량에 따른 폴리아닐린의 물리적, 화학적 성질을 조사하였다.

Keywords

Acknowledgement

Supported by : 서울산업대학교

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