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CI2/TiCl4体系引发α-甲基苯乙烯阳离子聚合的研究 Ⅰ.聚合产物的端基、官能度及其偶联反应
AN INVESTIGATION ON CATIONIC POIYMERIZATION OF α-METHYISTYRENE WITH CL2/TICL4 INITIATOR SYSTEM Ⅰ. END GROUP, FUNCTIONALITY AND COUPLING REACTION
【摘要】 本文首次报导了使用Cl2/TiCl4高活性引发剂体系引发α-甲基苯乙烯的阳离子聚合。根据红外光谱和核磁共振谱的测定结果,该聚合物具有伯氯端基。由氯元素分析得到聚合物分子链的氯端基数均官能度为0.86～0.87。以草酸钠为偶联剂,使聚合物发生了偶联,分子量得到跃升,同时为分子链带氯端基提供了旁证。
【Abstract】 Cl2/TiCl4 system is used for the first time to initiate the cationic polymerization of α-Methylstyrene Chlorine-terminated polymer is otained. Primary chlorine structure is Characterized by 1H-NMR and IR. The functionality of the Cl-terminated polymer is determinated as 0.86-0.87 by element analysis. A jump of MW is obserned due to the coupling of the Cl-terminals With Na2C2O4.
- 【文献出处】 高分子材料科学与工程 ,Polymeric Materials Science & Engineering , 编辑部邮箱 ,1989年03期
- 【被引频次】10
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