| 含稀土钛系催化剂的苯乙烯高活性定向聚合研究 |
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| 引用本文： | 周新华,赵振河,陆耘,林尚安.含稀土钛系催化剂的苯乙烯高活性定向聚合研究[J].高分子学报,1987,0(4):265-270. |
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| 作者姓名： | 周新华 赵振河 陆耘 林尚安 |
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| 作者单位： | 中山大学高分子研究所 广州
(周新华，赵振河，陆耘)，中山大学高分子研究所 广州(林尚安) |
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| 摘 要： | 本文用新研制的含稀土钕化合物的钛系催化剂(SN-1催化剂)于苯乙烯在苯溶液中进行定向聚合,能同时使产率、等规度、催化效率与聚合速率四项指标得到提高并远超过文献值。研究了各种聚合条件,即催化剂浓度、苯乙烯单体浓度、助催化剂三乙基铝浓度和聚合温度各因素对于催化效率、聚苯乙烯产率、等规度和分子量的影响规律并作讨论。
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| 关 键 词： | 定向聚合 等规聚苯乙烯 齐格勒-纳塔型催化剂 配位聚合 苯乙烯 |
| 收稿时间： | 1985-03-09 |
HIGHLY ACTIVE CATALYTIC STEREOSPECIFIC POLYMERIZATION OF STYRENE |
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| ZHOU Xin-hua,ZHOA Zhe-he,LU Yun,LIN Shang-an.HIGHLY ACTIVE CATALYTIC STEREOSPECIFIC POLYMERIZATION OF STYRENE[J].Acta Polymerica Sinica,1987,0(4):265-270. |
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| Authors: | ZHOU Xin-hua ZHOA Zhe-he LU Yun LIN Shang-an |
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| Institution: | Institute of Polymer Science; Zhongshan University; Guangzhou |
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| Abstract: | A novel highly active catalyst of TiCl4/MgCl2-Al(C2H5)3 system (called SN-1 catalyst, in which rare earth NdCl3 compound is included) was used for studying stereospecific polymerization of styrene in benzene solution, Highly isotactic polystyrene was prepared with far better yield and higher catalytic efficiency than the results ever reported in literatures. The influences of concentration of monomer, catalyst, trialkyl aluminum as well as polymerization temperature on the catalytic efficiency, yield, tacticity and molecular weight of polystyrene has been investigated. |
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| Keywords: | Stereospeciflc polymerization Isotactic polystyrene Ziegler-Natta type catalyst Coordination polymerization Styrene |
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