섬유

ce(iv)-induced polymerization of allyl methacrylate with cotton cellulose

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 243
in the reported experiments, ce(iv)-induced polymerization of allyl methacrylate (ama) with cotton cellulose was investigated under a variety of conditions. polymer add-on was directly related to ama concentration. the same holds good for ce(iv) ion concentration up to a certain concentration (30 mmol/l), after which it decreases polymer add-on was higher at 60 than at 50 and 70 $degree$ c. a methanol/water mixture (20/80) offers the best medium for polymerization. addition of nitric acid (up to 400 mol equivalent/l) or perchloric acid (up to 800 mol equivalent/l) to the polymerization system caused significant enhancement in polymer add-on. the reverse was the case with sulfuric acid irrespective of the concentration used. a comparison between polymer add-on values based on increase in weight and those based on estimated allyl double bonds indicated that the latter undergo partial homopolymerization. 30 refs
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