| 本体共聚合制备丙烯/1-丁烯合金及表征 |
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| 引用本文： | 张春雨,董博,张贺新,陈春海,张学全. 本体共聚合制备丙烯/1-丁烯合金及表征[J]. 高等学校化学学报, 2014, 35(9): 2014-2018. DOI: 10.7503/cjcu20140399 |
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| 作者姓名： | 张春雨 董博 张贺新 陈春海 张学全 |
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| 作者单位： | 1. 吉林大学化学学院, 麦克德尔米德实验室, 长春 1300122.中国科学院合成橡胶重点实验室, 中国科学院长春应用化学研究所, 长春 130022 |
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| 基金项目： | 国家自然科学基金创新研究群体科学基金(批准号:50921062)资助~~ |
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| 摘 要： | 以球形高效负载的TiCl4/MgCl2/邻苯二甲酸二异丁酯(DIBP)为催化剂, 采用本体聚合方法进行丙烯与1-丁烯共聚合研究. 考察了共单体效应对共聚活性及聚合物立构规整性的影响; 表征了共聚物的结构. 结果表明, 随着1-丁烯/丙烯投料比的增加, 聚合活性呈先升高后降低的趋势, 在1-丁烯/丙烯摩尔投料比为0.26条件下聚合活性达到最高, 并随着共聚物中1-丁烯含量的增加, 共聚物的熔点明显下降, 分子量降低, 分子量分布变窄, 同时共聚物力学性能有明显提高, 透明度逐渐增加.
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| 关 键 词： | 共单体效应 丙烯/1-丁烯共聚合 本体聚合 |
| 收稿时间： | 2014-04-25 |
Preparation and Characterization of Propylene/1-Butene Alloy with Bulk Copolymerization† |
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| ZHANG Chunyu;DONG Bo;ZHANG Hexin;CHEN Chunhai;ZHANG Xuequan. Preparation and Characterization of Propylene/1-Butene Alloy with Bulk Copolymerization†[J]. Chemical Research In Chinese Universities, 2014, 35(9): 2014-2018. DOI: 10.7503/cjcu20140399 |
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| Authors: | ZHANG Chunyu DONG Bo ZHANG Hexin CHEN Chunhai ZHANG Xuequan |
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| Affiliation: | 1. Alan G. MacDiarmid Laboratory, College of Chemistry, Jilin University, Changchun 130012, China2. Key Laboratory of Synthetic Rubber Chinese Academy of Sciences, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China |
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| Abstract: | The spherical MgCl2 supported TiCl4 catalyst(TiCl4/MgCl2/DIBP) was applied to bulk copolymerization of propylene and 1-butene. The influence of comonomer feed ratio on catalyst activity and stereoregularity of the copolymers were studied. The composition and properties of copolymers were investigated by 13C nuclear magnetic resonance(13C NMR), differential scanning calorimetry(DSC), infrared(IR) and gel permeation chromatography(GPC). The results showed that the polymerization activity increased firstly and then decreased with the increasing 1-butene/propylene feed ratio(B/P). The highest polymerization activity was achieved at B/P=0.26. As the 1-butene content in the copolymers increased, the melting point of the copolymers decreased and the molecular weight distribution became narrow. Meanwhile, the mechanical properties of the copolymers were improved significantly, and the transparency was gradually increased. |
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| Keywords: | Comonomer effect Propylene/1-butene copolymerization Bulk polymerization |
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