| THE POLYMERIZATION OF EPICHLOROHYDRIN WITH Nd(i-oPr)_3-Al(i-Bu)_3 SYSTEM |
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| 作者姓名： | 刘建飞 孙俊全 沈之荃 |
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| 作者单位： | Department of Polymer Science and Engineering，Zhejiang University，Hangzhou，Zhejiang 310027，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou，Zhejiang 310027，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou，Zhejiang 310027 |
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| 基金项目： | This work is supported by the National Natural Science Foundation of China |
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| 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.
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| 收稿时间： | 1992-12-10 |
THE POLYMERIZATION OF EPICHLOROHYDRIN WITH Nd(i-oPr)3-Al(i-Bu)3 SYSTEM* |
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| LIU Jianfei,SUN Junquan,SHEN Zhiquan.THE POLYMERIZATION OF EPICHLOROHYDRIN WITH Nd(i-oPr)_3-Al(i-Bu)_3 SYSTEM[J].Chinese Journal of Polymer Science,1994,0(2):153-156. |
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| Authors: | LIU Jianfei SUN Junquan SHEN Zhiquan |
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| Institution: | Department of Polymer Science and Engineering; Zhejiang University; Hangzhou; Zhejiang |
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| Abstract: | 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 1×105 to 3×105. |
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