2-비닐피리딘계 이온교환수지의 합성과 그의 이온교환능

Synthesis and Ion Exchange Capacity of 2-Vinylpyridine Series Ion Exchange Resins

  • 김동원 (충북대학교 자연과학대학 화학과) ;
  • 송해영 (충남대학교 공업교육대학 재료공학과)
  • Dong Won Kim (Department of Chemistry, Chungbuk National University) ;
  • Hae Yong Song (Department of Chemical Engineering, Chungnam National University)
  • 발행 : 1981.06.30

초록

2-비닐피리딘계의 세가지 종류의 고분자물질을 합성하여 그들의 구조를 적외선 흡수 스펙트럼으로 확인한 결과, 2-비닐피리딘-디비닐벤젠의 삼중합체임을 알 수 있었다. 또한 2-비닐피리딘-아세트산비닐-디비닐벤젠의 삼중합체는 $98{\circ}C$에서 50분간 반응시킬 때 가장좋은 수율을 나타냈다. 특히 합성된 삼중합체중, 2-비닐피리딘-비닐알코올-디비닐벤젠과, 2-비닐피리딘-인산비닐-디비닐벤젠은 2-비닐피리딘-아세트산비닐-디비닐벤젠보다 큰 이온교환용량을 가지며, 2-비닐피리딘-비닐알코올-디비닐벤젠과 2-비닐피리딘-인산비닐-디비닐벤젠의 이온교환용량은 각각, 3.69 meq/g 및 5.38 meq/g이었다. 마지막으로 Mg(Ⅱ), Co(Ⅱ) 및 Cd(Ⅱ)금속이온에 대한 흡착능을 알아보았다.

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.

키워드

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