The miscibility of poly(styrene-co-acrylonitrile) containing 30 wt% acrylonitrile(SAN 30)with poly(styrene-co-vinylphenol) (SVP) was examined by differential scanning calorimetry. Enthalpy relaxation method was used to investigate the miscibility of polymers with similar T
g values. SAN30 was miscible with SVP when the content of vinyphenol(VP) repeating unit was more than 7mol %. Interaction parameter between AN and VP repeating units, B
AN-VP determined by binary interaction model was -95.27(J/㎤).
Poly(styrene-co-vinylphenol) (SVP)를 acrylonitrile(AN) 함량이 30 wt % 인 poly(styrene-co-acrylonitrile(SAN 30)되 블렌드하여 상용성을 시차주사열량계로 조사하였다. 유리전이온(T
g)가 근접한 고분자 블렌드의 상용성은 enthalpy relaxation 빙법으로 조사한 결과, vinylphenol(VP)의 함량이 7 mol% 이상인 SVP가 SAN 30과 상용성을 보였다. Binary interaction model로 VP와 AN 반복단위 사이의 상호작용인자, B
AN-VP가 -95.27(J/㎤)임을 구했다.
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