Liu Shaojie, Yao Zhen, Cao Kun, Li Bogeng, Zhu Shiping
State Key Laboratory of Chemical Engineering (ZJU), Institute of Polymerization and Polymer Engineering, Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, P. R. China.
Macromol Rapid Commun. 2009 Apr 1;30(7):548-53. doi: 10.1002/marc.200800702. Epub 2009 Feb 5.
But-3-en-1-ol has been pre-protected by triisobutylaluminium and terpolymerized with ethylene and norbornene by rac-[Et(Ind)(2) ]ZrCl(2) /MAO catalysts. The strong polarity of diisobutyl(but-3-en-1-oxy)aluminum causes a slight reduction in the catalyst activity and yields a small fraction of crystallinity. The but-3-en-1-ol content in the terpolymer is as high as 3.2% and can be readily adjusted by varying the reaction conditions. When the norbornene/ethylene ratio is over 10, the norbornene incorporation efficiency is not affected by the polar monomer and is close to that of the copolymerization. Similar to the ethylene/norbornene copolymers, the thermal properties of the obtained terpolymers are mainly determined by their norbornene contents.
3-丁烯-1-醇已通过三异丁基铝进行预保护，并通过rac-[Et(Ind)(2) ]ZrCl(2)/MAO催化剂与乙烯和降冰片烯进行三元共聚。二异丁基（3-丁烯-1-氧基）铝的强极性导致催化剂活性略有降低，并产生少量结晶度。三元共聚物中的3-丁烯-1-醇含量高达3.2%，并且可以通过改变反应条件轻松调节。当降冰片烯/乙烯比例超过10时，降冰片烯的插入效率不受极性单体的影响，并且接近共聚时的效率。与乙烯/降冰片烯共聚物类似，所得三元共聚物的热性能主要由其降冰片烯含量决定。
