| Nd-Al双金属配合物催化双烯聚合反应动力学 |
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| 引用本文： | 董为民,杨继华,逄束芬,黄葆同. Nd-Al双金属配合物催化双烯聚合反应动力学[J]. 催化学报, 1999, 20(4): 442-444 |
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| 作者姓名： | 董为民 杨继华 逄束芬 黄葆同 |
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| 作者单位： | 中国科学院长春应用化学研究所,长春,130022 |
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| 基金项目： | 国家自然科学基金;29133083; |
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| 摘 要： | 以Ｎｄ－Ａｌ双金属配合物为催化剂，考察了丁二烯和异戊二烯聚合反应的动力学，得到稳态聚合速率方程为Ｒｐ＝ｋ〔Ｍ〕〔Ｎｄ〕＾ｎ（ｎ＝１）；丁二烯比异戊二烯有更大的表观增长速率常数ｋ，这些与聚合体系中是否存在过量的烷基铝无关。对多组分稀土催化剂作用下异戊二烯聚合反应动力学方程中出现较高ｎ值的现象进行了初步的探讨。
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| 关 键 词： | 稀土 配合物 聚合 丁二烯 |
| 收稿时间： | 1999-08-25 |
KINETICS OF CONJUGATED DIENE POLYMERIZATION CATALYZED BY Nd-Al BIMETALLIC COMPLEX |
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| Dong Weimin,Yang Jihua,Pang Shufen,Huang Baotong. KINETICS OF CONJUGATED DIENE POLYMERIZATION CATALYZED BY Nd-Al BIMETALLIC COMPLEX[J]. Chinese Journal of Catalysis, 1999, 20(4): 442-444 |
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| Authors: | Dong Weimin Yang Jihua Pang Shufen Huang Baotong |
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| Abstract: | The kinetics of butadiene (BD) and isoprene (IP) polymerization catalyzed by NdAl bimetallic complex was studied in cyclohexane solution at 30. The kinetic equation of polymerization rate of BD and IP was obtained as RP=k] n (M=monomer, n=1) and the k of BD polymerization was obviously larger than that of IP, in the presence or absence of triethyl aluminium. The reason for large n value in the kinetic equation of IP polymerization catalyzed by multicomponent rare earth catalyst system was discussed primarily. |
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| Keywords: | neodymium complex aluminium complex bimetallic complex butadiene isoprene stereospecific polymerization kinetics |
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