Citation: PENG Yuxing, DAI Hansong, LIU Jialin, CUN Linfeng. CATIONIC POLYMERIZATION OF 1, 3—PENTADIENE INITIATED BY ORGANIC AZIDE/Et2AlCl[J]. Chinese Journal of Polymer Science, ;1995, 13(4): 381-384. shu

CATIONIC POLYMERIZATION OF 1, 3—PENTADIENE INITIATED BY ORGANIC AZIDE/Et2AlCl

Received Date: 14 October 1994

The cationic polymerization of 1, 3-pentadiene was initiated by the organic azide/Et2 AlClinitiating system in CH2Cl2 and n-hexane. The polymerizations were also carried out in parallelwith organic chloride/Et2AlCl and Et2 AlCl alone for comparison. The Et2 AlCl- induced polymer-ization gives a low yield while the polymerization initiated by organic chloride/Et2 AlCl producesmainly insoluble product. In contrast, the polymerization with azide/Et,AlCl has a high conver-sion and the resulting polymer having a high molecular weight is totally soluble.The SEC spectra of the polymers have clearly shown the differences between these initiating systems.s
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