| 复合催化体系合成聚丁烯-1热塑性弹性体 |
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| 引用本文： | 冯涛,邵华锋,姚薇,黄宝琛. 复合催化体系合成聚丁烯-1热塑性弹性体[J]. 青岛化工学院学报(自然科学版), 2008, 0(6): 518-522 |
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| 作者姓名： | 冯涛 邵华锋 姚薇 黄宝琛 |
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| 作者单位： | 青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042 |
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| 基金项目： | 国家863计划项目（2006AA032546）. |
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| 摘 要： | 为了改善聚丁烯-1热塑性弹性体（PBt-TPE）力学性能，采用催化活性与定向能力不同的2种催化剂并用的方法进行丁烯-1聚合。结果表明，通过调节催化剂的配比，可以有效改变产品的等规度，提高PBtTPE的力学性能。当n（高效Ti）：n（自制Ti）-1：1时，PBt—TPE的拉伸强度12．7MPa，断裂伸长率390％；增加高效催化剂用量可以有效提高聚合物的结晶度和熔点。
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| 关 键 词： | 负载钛催化剂 热塑性弹性体 聚丁烯1 配位聚合 |
Synthesis of PBt-TPE with a Composite Catalyst System |
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| FENG Tao,SHAO Hua-feng,YAO Wei,HUANG Bao-chen. Synthesis of PBt-TPE with a Composite Catalyst System[J]. Journal of Qingdao Institute of Chemical Technology(Natural Science Edition), 2008, 0(6): 518-522 |
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| Authors: | FENG Tao SHAO Hua-feng YAO Wei HUANG Bao-chen |
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| Affiliation: | (Key Laboratory of Rubber-Plastic, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China) |
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| Abstract: | The polymerization rules of butene 1 with TiCl4/MgCl2-Al （i-Bu）3 catalyst system in 3L autoclave were studied. The process parameters such as polymerization temperature on the catalytic efficiency and relative molecular mass of PBt-TPE （Mw） were investigated. The monomer conversion will increase with the temperature and At/ Ti weight proportion. With the increasing of polymerization temperature, the effect of Mw and insoluble content in C2 H5 OC2 H5 of PBt-TPE is not observable, but the tensile strength and tear strength will decrease when Mw and the insoluble content in C2 H5 OC2 H5 of PBt TPE become lower. As the Al/Ti and the concentration of the new catalyst increase, the Mw and the insoluble content in C2 H5 O2 H5, as well as the tensile strength and tear strength of the material, will firstly increase and lightly decrease at the end. |
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| Keywords: | supported titanium catalyst thermoplastic elastomer polybutene-1 coordination polymerization |
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