Mu Xiaochun, Leng Xuefei, Liu Chuanchuan, Yao Qiang, Li Yang
Key Laboratory of Bio-Based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
SINOPEC Ningbo New Materials Research Institute Company Limited, Ningbo 315201, China.
Polymers (Basel). 2024 Aug 14;16(16):2290. doi: 10.3390/polym16162290.
The terpolymerization of ethylene with hexene and styrene derivatives was achieved with a rare earth metal catalyst (CMeSiMe)Sc(CHCHNMe-) to prepare functional polyethylene. The catalyst system exhibited high activity in the terpolymerization of ethylene with hexene and amine-substituted styrene, affording terpolymers a moderate molecular weight and a unimodal molecular weight distribution. In addition, the comonomer content of the terpolymers can be controlled by changing the feeding ratio of monomers. The aliphatic region of the C NMR spectra reveals that the structural units of the comonomers are separately incorporated into the polyethylene backbone. Terpolymers containing styrene derivatives exhibit enhanced tensile strength and significantly improve hydrophilic properties.
使用稀土金属催化剂（CMeSiMe）Sc（CHCHNMe-）实现了乙烯与己烯和苯乙烯衍生物的三元共聚，以制备功能性聚乙烯。该催化剂体系在乙烯与己烯和胺取代苯乙烯的三元共聚中表现出高活性，得到的三元共聚物具有中等分子量和单峰分子量分布。此外，通过改变单体的进料比可以控制三元共聚物的共聚单体含量。碳核磁共振谱的脂肪族区域表明共聚单体的结构单元分别并入到聚乙烯主链中。含有苯乙烯衍生物的三元共聚物表现出增强的拉伸强度并显著改善亲水性。
