| 含芳香双酯高效催化剂进行丙烯聚合及其动力学的研究 |
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| 引用本文： | 王海华,张启兴,饶广杰,林尚安.含芳香双酯高效催化剂进行丙烯聚合及其动力学的研究[J].高等学校化学学报,1992,13(12):1621. |
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| 作者姓名： | 王海华 张启兴 饶广杰 林尚安 |
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| 作者单位： | 中山大学高分子研究所, 广州, 510275 |
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| 摘 要： | 采用多种芳香双酯作为电子给予体制备了丙烯聚合高效催化剂,该催化剂具有高活性、聚合反应平稳、产物等规度高等特征.研究了多种芳香双酯和外加各种烷基硅氧烷对丙烯聚合的作用,测定了聚合反应动力学曲线,确定了聚合动力学方程.用扫描电镜研究了催化剂的形态,表明双酯组份能使催化剂结合得较紧密;对聚合产物的结构用DSD、红外光谱进行了表征.
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| 关 键 词： | 丙烯聚合 高效催化剂 邻苯二甲酸酯 聚合动力学 TiCl4 |
| 收稿时间： | 1992-03-24 |
Studies on Propylene Polymerization and Polymerization Kinetics Under Highly Active Catalyst Comprising Phthalic Ester |
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| WANG Hai-Hua,ZHANG Qi-Xing,RAO Guang-Jie,LIN Shang-An.Studies on Propylene Polymerization and Polymerization Kinetics Under Highly Active Catalyst Comprising Phthalic Ester[J].Chemical Research In Chinese Universities,1992,13(12):1621. |
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| Authors: | WANG Hai-Hua ZHANG Qi-Xing RAO Guang-Jie LIN Shang-An |
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| Institution: | Institute of Polymer Science, Zhongshan University, Guangzhou, 510275 |
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| Abstract: | The polymerization of propylene under highly active catalyst comprising phthalic esters 1,2-C6H4(COOEt)2,1,2-C6H4(COOCH2CH=CH2)2,1,2-C6H4(COOBu)2 as electron-donors has been studied.It was found that the PPtacticity would raise with increasing phthalic esters,and the catalytic activity decreases while the PPtacticity increases.By adding silicon compounds PhSi(OEt)3,Ph2Si(OMe)2,Ph2Si(OEt)2,(CH3)2Si(OEt)2,there are almost the same results.The kinetics of propylene polymerization has been investigated.The polymerization rate equation in good agreement with experimental evidence is expressed as:Vt-Va=(V0-Va)e-βt,The change in morphology of the catalyst was studied before and after adding phthalate ester by SEM. |
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| Keywords: | Propylene polymerization Highly active catalyst Phthalic esters Polymerization kinetics TiCl4 |
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