Novel Ti@COF catalysts for the preparation of ultra-high molecular weight linear polyethylene

被引：0
作者：
Li, Hao-Tian [1 ]
Gu, Jie [1 ]
Shu, Nian-Zu [1 ]
He, Guo-Long [1 ]
Zheng, He-Gen [2 ]
Zhang, Chuan-Lei [1 ]
机构：
[1] Anqing Normal Univ, Anhui Ultra High Mol Weight Polyethylene Fiber Eng, Sch Chem & Chem Engn, Anhui Prov Key Lab Adv Catalysis & Energy Mat, Anqing 246133, Peoples R China
[2] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210023, Peoples R China
来源：
CRYSTENGCOMM | 2025年 / 27卷 / 11期
基金：
安徽省自然科学基金; 中国国家自然科学基金;
关键词：
COVALENT ORGANIC FRAMEWORKS; POLYMERIZATION; DESIGN;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The development of the polyolefin industry hinges on the development of high-performance catalysts. Covalent organic frameworks (COFs), as novel porous materials, hold great potential in heterogeneous catalysis. In this study, Ti@COF catalysts, namely Ti@TbDa and Ti@TtDa, were designed and synthesized under solvothermal conditions and post-modification. Ethylene polymerization experiments demonstrated that Ti@TtDa exhibited an extremely high polymerization activity of 4.31 x 104 gPE molTi-1 h-1 at a pressure of 0.5 MPa, and the products have opened up new avenues for the production of ultra-high molecular weight linear polyethylene (Mw = 1.57 x 106 g mol-1) and a low molecular weight distribution (D = 4.80). Such catalysts brought new ideas for the design of olefin polymerization catalysts and contributed to the upgrading of the polyethylene industry.
引用
收藏
页码：1541 / 1547
页数：7
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