由特殊相互作用导致的高分子间的络合 Ⅷ.聚(苯乙烯-co-4-乙烯基苯酚)/聚甲基丙烯酸乙酯在本体中的相容-络合行为

INTERMACROMOLECULAR COMPLEXATION DUE TO\=SPECIFIC INTERACTIONS\= .MISCIBILITY AND COMPLEXATION BEHAVIOR OF POLY\|\=(STYRENE\|co\|4\|VINYLPHENOL)/POLY(ETHYL METHACRYLATE) IN BULK

采用结合物理老化技术的示差扫描量热法（ＤＳＣ）以及非辐射能量转移荧光光谱法（ＮＲＥＴ）研究了聚（苯乙烯ｃｏ４乙烯基苯酚（ＳＴＶＰｈ）与聚甲基丙烯酸乙酯（ＰＥＭＡ）共混体系的相容与络合行为．对ＳＴＶＰｈ／ＰＥＭＡ共混体系，当ＳＴＶＰｈ中的ＯＨ基团含量仅为１ｍｏｌ％时，即可实现相容．随ＯＨ基含量继续增加，共混体系的Ｔｇ值上升并逐渐接近和高于Ｆｏｘ方程计算值，玻璃化转变区域逐渐变窄，ＮＲＥＴ能量转移效率远高于普通的相容体系，共混体系形成络合．此外，还讨论了浇膜溶剂对相容与络合的影响．

The miscibility and complexation behavior of poly(styrene co 4 vinylphenol)( S T V Ph) and poly(styrene co 4 vinylpyridine)( S T V Py) in bulk have been investigated bydifferential scanning calorimetry ( D S C) combined with physical aging as well as non radiative energy transfer ( N R E T) fluorospectroscopy . It has been found that when thehydroxylcontent in S T V Ph reaches 3 ,6 ,9 mol% ,the miscibility of S T V Ph with S T V Pycan be achieved which contains 25 ,50 ,75 mol% vinylpyridine units ( V Py) respectively . Itisnoticeable that when the hydroxyl content is further increased ,complex formation betweenthe components occurs. An apparent casting solvent effect on both miscibility andcomplexation has been also discussed .