• PAr-g-PS from Polystyrene Macromonomer : Synthesis and Its Use in PBT/PPO Alloy as Compatibilizer
  • Ahn TO, Yim CI, Jeong HM
  • 폴리스티렌 마크로마를 이용한 PAr-g-PS의 합성과 PBT/PPO합금에서 상용화제로의 이용
  • 안태완, 임채익, 정한모
Abstract
Polyarylate (PAr) grafted with polystyrene (PAr-g-PS) was synthesized using dihydroxy-terminated polystyrene (PS) macromonomer of which number average molecular weight was 10,000. Phase separation between the PAr-rich phase and the PS-rich phase in the PAr-g-PS was observed from thermal property measured by differential scanning calorimeter. In the PAr-g-PS/poly(butylene terephthalate) (PBT) binary blend, PAr segment was miscible with PBT and crystallization was hindered by PAr-g-PS. In the PAr-g-PS/poly(2,6-dimethy-1,4-phenylene oxide) (PPO) binary blend PS segment was miscible with PPO. The compatibilizing effect of PAr-g-PS in the PBT/PPO blend was observed in thermal property and morphology.

수평균 분자량이 10,000인 말단에 두개의 히드록시기를 갖는 폴리스티렌(PS) 마크로모노머를 사용하여 PS가 그라프트된 polyarylate (PAr-g-PS)를 합성하고 열적성질을 조사하였다. PAr-s-PS는 PAr 영역의 유리전이온도(Tg)와 PS 영역의 Tg가 분리되어 나타나는 상분리 거동을 보였다. PAr-g-Ps/poly(butylene terephthalate) (PBT) 이원블렌드에서 PAr 세그먼트는 PBT와 상용성을 가졌으며, PAr-g-PS는 PBT의 결정화를 방해하였다. PAr-g-Ps/poly(2,6-di-methyl-1,4-phenylene oxide) (PPO) 이원블렌드에서 PS 세그먼트는 PPO와 상용성을 가졌다. PBT/PPO 블렌드 계에서 PAr-g-PS의 상용화 작용은 열적성질과 모폴로지등으로 부터 관찰할 수 있었다.

Keywords: PS macromonomer; graft copolymer; blend; compatibilizer

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2024 Impact Factor : 0.6
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This Article

  • 1995; 19(4): 415-422

    Published online Jul 25, 1995