| 非均相聚合制备超高分子质量乙烯/十一烯醇共聚物 |
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| 引用本文： | 龙聪,袁浩波,蔡正国. 非均相聚合制备超高分子质量乙烯/十一烯醇共聚物[J]. 合成纤维, 2019, 48(6): 1-3 |
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| 作者姓名： | 龙聪 袁浩波 蔡正国 |
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| 作者单位： | 东华大学材料科学与工程学院,纤维改性国家重点实验室,上海201620;东华大学材料科学与工程学院,纤维改性国家重点实验室,上海201620;东华大学材料科学与工程学院,纤维改性国家重点实验室,上海201620 |
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| 摘 要： | 与均相催化剂相比,负载型催化剂能够有效控制产物形态和聚合活性。以2,7-叔丁基芴基胺基二甲基钛[t-BuNSiMe2(2,7-di-t-BuFlu)TiMe2]为催化剂、改性甲基铝氧烷/二氧化硅(MMAO/SiO2)为负载、乙烯和10-十一烯-1-醇为单体,制备了一系列超高分子质量乙烯/十一烯醇共聚物。研究结果表明:控制聚合活性在1000~2000 kg/(mol·h)时,可得到形态均一、稳定的超高分子质量聚乙烯共聚物颗粒,共单体插入率最高达5.3%;同时,共聚物有着不错的结晶度。
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| 关 键 词： | 超高分子质量聚乙烯 共聚 非均相聚合 |
Synthesis of Ultra-High Molecular Weight Ethylene/10-Undecene-1-Ol Copolymer by Heterogeneous Polymerization |
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| LONG Cong,YUAN Hao-bo,CAI Zheng-guo. Synthesis of Ultra-High Molecular Weight Ethylene/10-Undecene-1-Ol Copolymer by Heterogeneous Polymerization[J]. Synthetic Fiber in China, 2019, 48(6): 1-3 |
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| Authors: | LONG Cong YUAN Hao-bo CAI Zheng-guo |
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| Affiliation: | ,State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering, Donghua University |
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| Abstract: | Compared to homogeneous catalyst,the supported catalyst can control morphology and polymerization activity effectively. The ultra-high molecular weight ethylene/10-undecene-1-ol copolymer was synthesized by using complexes t-BuNSiMe_2(2,7-di-t-BuFlu) TiMe_2 as the catalyst, modified methyaluminoxane/silica (MMAO/SiO_2) as the support. The results showed that the ethylene copolymer particles with uniform morphology were obtained with the insertion ratio up to 5.3%, where polymerization activity was 1000～2000 kg/(mol·h), and it's crystallinity was good. |
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| Keywords: | UHMWPE copolymerization heterogeneous polymerization |
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