【摘要】 研究了用自制的催化剂—茂基三呋喃甲氧基钛［ＣｐＴｉ（Ｏ－ＣＨ２Ｃ４Ｈ３Ｏ）３—ｃａｔ］与甲基铝氧烷（ＭＡＯ）组成的催化体系聚合得到的间规聚苯乙烯（ｓＰＳ）以及苯乙烯与乙烯的嵌段共聚物的热行为、结晶行为以及微观结构。ｓＰＳ有较高的熔点（约２６３°Ｃ），在共聚物中ｓＰＳ链段的熔融峰值相对较低；无论均聚物或共聚物中，ｓＰＳ链段都表现出好的结晶性，但结晶过程是复杂的；１３ＣＮＭＲ谱图，证明了共聚物的嵌段结构。更多还原

【Abstract】 The thermal behavior,crystalline behavior and microstructures of syndiotactic polystyrene(sPS) and ethenestyrene block copolymer obtained through 5cyclopentadienyltrifurfuroxyltitanium/methylaluminoxane catalyst system were studied.sPS has higher melting point(about 263C), the melting peak of sPS chain segment in copolymer is comparatively lower.sPS chain segment behaves good crystallinity.The block sturcture of ethenestyrene copolymer was characterized by 13 C NMR spectroscopy.更多还原