セルロースヘのアクリロニトリルと種々のビニルモノマーのグラフト共重合

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タイトル別名
  • GRAFT COPOLYMERIZATION OF ACRYLONITRILE WITH VARIOUS VINYL MONOMERS ONTO CELLULOSE
  • セルロース エ ノ アクリロニトリル ト シュジュ ノ ビニル モノマー ノ

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抄録

Graft copolymerization of acrylonitrile (M1) with various vinyl monomers (M2) onto cellulose were carried out in an aqueous medium using ceric salt as an initiator. The effects of M2 monomers on the conversion and the alternating tendency of copolymers obtained were examined.<br>Total conversion was greatly enhanced by the presence of cellulose and decreased in the order of methyl acrylate (MA), ethyl acrylate (EA), methyl methacrylate (MMA), butyl acrylate (BA), vinyl acetate (VAc) and styrene (St). The above coincides with the order of the solubility of monomers in water. Per cent grafting and grafting efficiency increased with the AN content in the feed.<br>The monomer reactivity ratios r1 and r2 of grafted and ungrafted copolymers obtained by the copolymerization in the presence and in the absence of cellulose were determined by using the Fineman-Ross method.<br>Alternating tendency of copolymers obtained by the copolymerization of AN with M2 monomers decreases with the e value in M2 monomers and alternating tendency of the grafted copolymers is higher than that in the absence of cellulose.<br>From these results, it is supposed that the formation of cellulose-AN (M1) complex brings about the increase in electron accepting ability, and uncomplexed M2 monomer functions as a donor to the cellulose-AN complex. As a result, a donor-acceptor complex is generated, and the graft copolymerization is initiated.

収録刊行物

  • 繊維学会誌

    繊維学会誌 32 (7), T307-T311, 1976

    社団法人 繊維学会

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