KINETICS OF BUTADIENE POLYMERIZATION WITH MOLYBDENUM CATALYST SYSTEM Ⅰ. THE POLYMERIZATION RATE AND KINETIC PARAMETERS

NI Shao-ru; Gao Xu-guo; TANG Xue-ming

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KINETICS OF BUTADIENE POLYMERIZATION WITH MOLYBDENUM CATALYST SYSTEM Ⅰ. THE POLYMERIZATION RATE AND KINETIC PARAMETERS

Research Article | 更新时间：2021-03-19

- KINETICS OF BUTADIENE POLYMERIZATION WITH MOLYBDENUM CATALYST SYSTEM Ⅰ. THE POLYMERIZATION RATE AND KINETIC PARAMETERS
- Acta Polymerica Sinica Issue 4, Pages: 241-246(1983)
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- Published：20 August 1983，
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NI Shao-ru, Gao Xu-guo, TANG Xue-ming. KINETICS OF BUTADIENE POLYMERIZATION WITH MOLYBDENUM CATALYST SYSTEM Ⅰ. THE POLYMERIZATION RATE AND KINETIC PARAMETERS. [J]. Acta Polymerica Sinica (4):241-246(1983)
DOI：

NI Shao-ru, Gao Xu-guo, TANG Xue-ming. KINETICS OF BUTADIENE POLYMERIZATION WITH MOLYBDENUM CATALYST SYSTEM Ⅰ. THE POLYMERIZATION RATE AND KINETIC PARAMETERS. [J]. Acta Polymerica Sinica (4):241-246(1983) DOI：

摘要

本文研究了MoCl4OC8H17-(i-Bu)2AlO-体系催化丁二烯聚合动力学

考察了影响聚合速度的各种因素

测定了催化剂利用率

活性中心浓度和平均寿命等动力学参数。聚合速度对单体浓度和主催化剂浓度均呈一级关系

表现活化能为17.1千卡/摩尔

催化剂利用率约为4％;活性中心平均寿命与温度和活化能的函数关系可表示为 ξ=eEa/RT Pn/Zp[Bd]

Abstract

A kinetic study on the polymerization of butadiene with MoCl4OC8H17-(i-Bu)2AlO-as catalyst has been carried out. The factors influencing the polymerizationrate was researched. Some of kinetic parameters such as the efficiency of catalyst

the concentration of active center and its average life period

were determined.It was found that the polymerization rate is first order with respect to the concentration of both monomer and Mo catalyst. The apparent activation energy for the polymerization is 17.1 Kcal/mole

and the efficienyc of catolyst was found to be about 4%. The average life period of active center is a function of activation energy and poly-merization temperature

it can be expressed as ξ=eEa/RT Pn/Zp[Bd].

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