龙聪,袁浩波,蔡正国
LONG Cong,YUAN Hao-bo,CAI Zheng-guo

• 1:东华大学材料科学与工程学院纤维改性国家重点实验室

摘要(Abstract)：

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-BuNSiMe_2(2,7-di-t-BuFlu)TiMe_2]为催化剂、改性甲基铝氧烷/二氧化硅(MMAO/SiO_2)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。
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.

关键词(KeyWords)： 超高分子质量聚乙烯;共聚;非均相聚合
UHMWPE;copolymerization;heterogeneous polymerization

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 龙聪,袁浩波,蔡正国
LONG Cong,YUAN Hao-bo,CAI Zheng-guo

DOI: 10.16090/j.cnki.hcxw.20190614.004

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