THE POLYMERIZATION OF EPICHLOROHYDRIN WITH Nd(i-oPr)_3-Al(i-Bu)_3 SYSTEM  

作　　者：刘建飞 孙俊全 沈之荃 

机构地区：[1]Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027

出　　处：《Chinese Journal of Polymer Science》1994年第2期153-156,共4页高分子科学（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China

摘　　要：Epichlorohydrin (ECH) was polymerized with a rare earth catalytic system: Nd (i-OPr)_3-Al (i-Bu)_3. The effects of Al/Nd molar ratio, solvents, the polymerization time and temperature,the aging time and temperature of the catalyst preparation were studied. The results showed thatat a low Al/Nd molar ratio (4) of the Nd(i-OPr)_3-Al(i-Bu)_3 system ECH polymerized at a lowtemperature (248K) with a high conversion. The average molecular weight ofpolyepichlorohydrin (PECH) ranged from 1×10~5 to 3×10~5.Epichlorohydrin (ECH) was polymerized with a rare earth catalytic system: Nd (i-OPr)_3-Al (i-Bu)_3. The effects of Al/Nd molar ratio, solvents, the polymerization time and temperature,the aging time and temperature of the catalyst preparation were studied. The results showed thatat a low Al/Nd molar ratio (4) of the Nd(i-OPr)_3-Al(i-Bu)_3 system ECH polymerized at a lowtemperature (248K) with a high conversion. The average molecular weight ofpolyepichlorohydrin (PECH) ranged from 1×10~5 to 3×10~5.

关 键 词：THE POLYMERIZATION OF EPICHLOROHYDRIN WITH Nd ECH SYSTEM i-Bu i-oPr Al 

分 类 号：TQ316.33[化学工程—高聚物工业]