Journal of the Korean Society of Clothing and Textiles (한국의류학회지)

The Korean Society of Clothing and Textiles (한국의류학회)
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Emulsion Graft Copolymerization of Methyl Methacrylate onto Cotton Fiber

면섬유에 대한 Methyl Methacrylate의 유화 그라프트 중합

  • Bae Hyun-Sook (Dept. of Clothing and Textiles, College of Natural Science, Chang-won National University) ;
  • Ryu Hyo-Seon (Dept. of Clothing and Textiles, College of Home Economics, Seoul National University) ;
  • Kim Sung-Reon (Dept. of Clothing and Textiles, College of Home Economics, Seoul National University)
  • 배현석 (창원대학교 자연과학대학 의류학과) ;
  • 류효선 (서울대학교 가정대학 의류학과) ;
  • 김성련 (서울대학교 가정대학 의류학과)
  • Published : 1991.08.01
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Abstract

Emulsion graft copolymerization of MMA onto cotton fiber using Ce(IV) salt as an initiator was carried out. Graft yield and graft efficiency were observed according to the kinds and concentrations of emulsifier and polymerization conditions. The physical properties of MMA grafted cotton fabric were investigated. The results of this study were as follows: 1. The heighest graft yield of emulsion graft polymerization occurred at the concentration below cmc of emulsifier, which was different from emulsion polymerization. Nonionic sur- factant as an emulsifier was more effective than anionic one. 2. The highest graft yield was obtained at the initiator concentration $1{\times}10^{-2}mol/l$. The viscometric molecular weight of PMMA was in the order of 106. 3. As reaction time increased, the graft yield increased but the graft efficiency decreased. 4. Elevation of reaction temperature resulted in increase of graft yield. The apparent activation energy of MMA graft polymerization was 4.72 Kcal/mol. 5. Physical properties of MMA grafted cotton fabric varied with increase of grafting. Thickness and stiffness showed a noticeable increase, whereas tensile strength and elongation was slightly increased. Crease recovery increased as the graft yield increase up to $50\%$ and decreased thereafter.

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