요오드 흡착에 의한 폴리아크릴로니트릴 구조의 변화

Structural Change of Plyacrylonitrile by Iodine Sorption (I)

  • 김홍성 (부산대학교 공과대학 섬유공학과) ;
  • 조현옥 (부산대학교 공과대학 섬유공학과)
  • 발행 : 1992.02.01

초록

Iodine sorption of polyacrylonitrile(PAN) in aqueous I$_2$/KI solution was investigated for structural study of PAN. The sorption behaviors for uniaxially oriented film and unoriented film show a distinct difference below the concentration of O.8mole/l. The dimension of oriented film treated above this concentration recovers its original dimension. As the diffusion of iodine into PAN is the mode of non-Fickian, the diffusion coefficient increases with time of sorption. The sorption behavior in disordered region of oriented film is found to be similar to that of unoriented film. It is ascertained that iodine is able to penetrate into ordered as well as disordered region of PAN below the concentration of 0.5 mole/l.

키워드

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