Article
  • Polymerization and Copolymerization of Poly(p-phenylene sulfide) and Poly(p-phenylene sulfide/sulfone)
  • Park LS, Kim GH, Lee SC, Han SK, Cha IH
  • Poly(Phenylene Sulfide)의 고분자량화 및 Sulfone 유도체와의 중합 반응
  • 박이순, 김기현, 이수창, 한상규, 차일훈
Abstract
For the improvement of molecular weight of poly(phenylene sulfide), PPS, copolymerization method and phase transfer catalyst as additive were investigated. As a preliminary experiment the optimum homopolymerization conditions of PPS from p-dichlorobenzene(DCB) and Na2S·9H2O and poly(phenylene sulfide/sulfone), PPSS from 4-chlorophenylsulfone(CPS) and Na2S·9H2O were examined. The use of minor amount of CPS comonomer with DCB in a coupling type reaction was found to give higher molecular weight polymer than direct copolymerization or homopolymerization of PPS. The addition of 1/50 amount of phase transfer catalysts such as 15-crown-5, 18-crown-6, dibenzo 18-crown-6, dicyclohexano 18-crown-6 based on sodium sulfide also improved the molecular weight of PPS. The effect, however, was not so great as that of lithium acetate added equimolar amount of Na2S·9H2O into NMP solvent.

Poly(phenylene sulfide), PPS의 고분자량화를 위하여 공중합법 및 상전이 촉매 효과를 조사하였다. 먼저 sodium sulfide(Na2S·9H2O)를 p-dichlorobenzene(DCB)와 중합시켜 PPS를 그리고 4-chlorophenylsulfone(CPS)와 중합시켜 poly(phenylene sulfide/sulfone), PPSS를 얻는 단독중합 조건에 대해 조사하였다. 소량의 CPS를 DCB와 직접 공중합하기 보다 coupling 반응을 통하여 PPS의 분자량을 증가시킬 수 있음을 알았다. 또 crown ether들을 상전이 촉매로 사용할 때 PPS의 분자량이 증가함을 확인하였으나 그 효과는 lithium acetate 첨가제를 NMP 용매에 투입할 때 보다 크지 않음을 알 수 있었다.

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1992; 16(6): 687-692

    Published online Nov 25, 1992

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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