多孔聚合物微球载体催化剂催化乙烯聚合研究

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英文篇名：Study on Ethylene Polymerization Catalyzed by Porous Polymer Microsphere Carrier Catalyst 作者：任合刚 ; 董平 ; 王登飞 ; 闫义彬 ; 周光远 英文作者：Ren Hegang;Dong Ping;Wang Dengfei;Yan Yibin;Zhou Guangyuan;Daqing Petrochemical Research Institute of CNPC;College of Chemistry and Chemical Engineering,Northeast Petroleum University;Key Laboratory of Polymer Ecomaterials,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences; 关键词：多孔聚合物微球载体 ; Ziegler-Natta催化剂 ; 乙烯聚合 英文关键词：porous polymer microsphere supports;;Ziegler-Natta catalysts;;ethylene polymerization 中文刊名：XDSL 英文刊名：Modern Plastics Processing and Applications 机构：中国石油天然气股份有限公司大庆化工研究中心;东北石油大学化学化工学院;中国科学院长春应用化学研究所生态环境与高分子材料重点实验室; 出版日期：2018-08-30 13:27 出版单位：现代塑料加工应用 年：2018 期：v.30;No.172 基金：中国石油天然气股份有限公司科技管理部项目(2016B-2602) 语种：中文; 页：XDSL201804022 页数：3 CN：04 ISSN：32-1326/TQ 分类号：46-48

摘要

采用两步种子溶胀聚合制备了含有氰基官能团的多孔聚合物微球载体,经化学法修饰后再负载四氯化钛,制备了聚合物微球载体负载的Ziegler-Natta催化剂,研究了多孔聚合物微球载体催化剂催化乙烯聚合。结果表明:多孔聚合物微球载体颗粒规整、均一,催化剂形态良好,复制了载体的形貌;多孔聚合物微球载体催化剂催化乙烯聚合最高活性为45.0kg,聚合产物颗粒形态较规整,堆积密度可达0.33g/cm3,得到的聚乙烯为超高分子量聚乙烯,相对分子质量最高为4.8×106。
        Porous polymer microsphere supports containing cyano-group are prepared by two stage seed-swelling polymerization method.Then the porous polymer microsphere carrier is modified by chemical method.The polymer microsphere supported Ziegler-Natta catalyst is prepared by reloading titanium tetrachloride.Ethylene polymerization catalyzed by porous polymer microspheres is studied.The results show that the porous polymer microsphere carrier particles are regular and homogeneous.The morphology of the catalyst replicated the form of the carrier,and the morphology of the catalyst is good.The porous polymer microsphere supported catalyst has high activity for ethylene polymerization,and the highest is 45.0 kg.The morphology of the polyethylene product is more regular,and the bulk density of the polyethylene product is up to0.33 g/cm3.The molecular weight of the polyethylene product is ultra-high,and the highest molecular weight is 4.8×106.

引文

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