| 稀土催化异戊二烯聚合动力学的研究 |
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| 引用本文： | 朱行浩,乔玉芹,韩东霓.稀土催化异戊二烯聚合动力学的研究[J].高分子学报,1984,0(3):207-213. |
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| 作者姓名： | 朱行浩 乔玉芹 韩东霓 |
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| 作者单位： | 吉林化学工业公司研究院
(朱行浩，乔玉芹)，吉林化学工业公司研究院(韩东霓) |
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| 摘 要： | 用膨胀计研究了Ln(Naph)_3-Al(i-Bu)_3-Al_2Et_3Cl_3催化异戊二烯聚合动力学。发现在低聚合速度条件下体系显示稳态聚合特征,在较高聚合速度条件下聚合初期速度有一增长过程。建立了聚合速度方程并估算了增长链平均寿命、增长链浓度、催化剂效率以及链增长速度常数。
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| 收稿时间： | 1982-09-17 |
DILATOMETRIC STUDIES ON THE POLYMERIZATION OF ISOPRENE BY LANTHANIDE CATALYST |
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| Zhu Xing-hao,Qiao Yu-qin,Han Dong-ni.DILATOMETRIC STUDIES ON THE POLYMERIZATION OF ISOPRENE BY LANTHANIDE CATALYST[J].Acta Polymerica Sinica,1984,0(3):207-213. |
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| Authors: | Zhu Xing-hao Qiao Yu-qin Han Dong-ni |
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| Institution: | Research Institute of Jilin Chemical Industry Corporation |
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| Abstract: | The kinetics of the polymerization of isoprene in hexane in the presence of Ln naph-thenate-Al(i-Bu)3-Al2Et3Cl3 catalyst was studied in a specially designed dilatometer. The polymerization showed to be Ist-order in monomer and 1.75 th order in catalyst, respectively. In a typical polymerization, the concentration of propagating chain has been calculated to be 3×10-6mol/l. Thus, the efficiency of lanthanide catalyst is 2.8% and the rate constant of absolute propagations is 411/mol/sec (50℃). |
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