• Title/Summary/Keyword: barium acetate

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Synthesis and Ion Exchange Capacity of 2-Vinylpyridine Series Ion Exchange Resins (2-비닐피리딘계 이온교환수지의 합성과 그의 이온교환능)

  • Dong Won Kim;Hae Yong Song
    • Journal of the Korean Chemical Society
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    • v.25 no.3
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    • pp.160-165
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    • 1981
  • Radical copolymerization of the complexed 2-vinylpyridine with vinyl acetate and divinylbenzene initiated by azobisisobutyronitrile was carried out in N, N-dimethylformamide in presence of barium chloride at $98{\circ}C$. In the preparation of 2-vinylpyridine-vinylacetate-divinylbenzene terpolymer, the optimum reaction conditions were studied by means of various temperatures and times. 2-vinylpyridine-vinylalcohol-divinybenzene resin was prepared by transesterificating 2-vinylpyridine-vinylacetate-divinylbenzene terpolymer with a 1% methanolic sodium hydroxide solution. 2-Vinylpyridine-vinylphosphate-divinyldenzene was prepared by phosphorylating 2-vinylpyridine-vinylalcohol-divinylbenzene resin with phosphoric acid and urea. The compositions of each synthetic resin were identified by means of infrared absorption spectroscopy. The ion exchange capacities of each 2-vinylpyridine-vinylalcohol-divinylbenzene and 2-vinylpyridine-vinylphosphate-divinylbenzene terpolymer was 3.69 meq/g and 5.38 meq/g.

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