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采用ALET2CL-C6H5CH2CL体系成功地对聚异戊二烯、聚了二烯、聚氯丁二烯3种1,3-双烯聚合物进行了环化,并对环化过程进行了比较.“,”1, 3 - DIENE POLYMERS WAS CYCLIZED WITH THE AID OF CATIONIC CATALYST SYSTEM BASED ON ALET2CL - C6H5CH2CL, WHICH WAS COMPARED IN THIS PAPER.