Article
  • FT-IR Studies on Miscibility of Tetramethyl Bisphenol-A Polycarbonate and Styrene-Acrylonitrile Copolymers
  • Kim JH, Lim JS, Min HE
  • 테트라메틸 비스페놀-A 폴리카보네이트와 스티렌-아크릴로니트릴 공중합체와의 사용성
  • 김정하, 임정철, 민경은
Abstract
The miscibility of tetraimethyl bisphenol-A polycarbonate(TMPC) with polystyrene(PS) and with styrene-acrylonitrile(SAN) r()polymers In various AN content were studied bt using : FT-IR spartroscopy and differential scanning calorimetry(DSC) The blends of TMPC and SAIN having acrylonitrile contents equal to or less than 10% by weight showed a single glass transition which changes monotonously with blend composition. Furthtermore, the phase separation temperature of TMPC/SAN blends increased as the AN content in SAN increased up to 10 wt%. The results of FT-IR analysis showed that the carbonyl stretching peak was shifted to lower frequency with blend composition and that the calculated value of enthalpy of hydrogen bonding formation(ΔH) was increased with raising of AN content up to 10 wt%. These results were interpreted by the recent theories of binary interaction model.

테트라메틸 비스페놀-A폴리카보네이트, TMPC와 몇가지 스티렌/아그릴로니트릴 공중합체, SAN과의 블렌드를 제조하고 FT-IR 및 DSC로써 이들의 상용성을 조사하였다. 이크릴로니트릴의 함량이 10% 미만인 SAN은 TMPC와 조성에 관계없이 단일 유리전이 현상을 나타내었으며, 블렌드몰에서 카르보닐기에 의한 신축진동 흡수띠가 낮은 주파수로 이동함을 FT-IR로써 확인하였다. 또한 AN함량이 증가함에 따라 LCST현상에 의한 상분리온도가 상승됨을 관찰하였다. 이상의 결과로부터 블랜드 조성성분간의 수소결합 엔탈피를 계산하였으며 이들의 상용성을 이성분 상호작용모델로써 고찰하였다.

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

  • 1993; 17(6): 654-661

    Published online Nov 25, 1993