新型Ziegler-Natta催化剂催化乙烯与1-己烯共聚合  

A novel Ziegler-Natta catalyst for ethylene and 1-hexene copolymerization

作　　者：任合刚[1,2,3,4] 崔立娟[1] 王斯晗[1] 宋磊[1] 高宇新[1] 刘宾元[2] 徐用军[3] 

机构地区：[1]中国石油天然气股份有限公司石油化工研究院大庆化工研究中心,黑龙江省大庆市163714 [2]河北工业大学高分子科学与工程研究所,天津市300130 [3]哈尔滨工业大学化工学院,黑龙江省哈尔滨市150001 [4]大庆高新技术产业开发区博士后科研工作站,黑龙江省大庆市163316

出　　处：《合成树脂及塑料》2016年第1期12-15,共4页China Synthetic Resin and Plastics

基　　金：中国石油天然气股份有限公司科技部项目(2014A-2706)

摘　　要：采用一种新型简单方法制得了高效气相聚乙烯用NGE催化剂。研究了NGE催化剂和M催化剂催化乙烯均聚合和乙烯与1-己烯共聚合性能之间的关系,并通过差示扫描量热法、凝胶渗透色谱和核磁共振碳谱等方法对聚合产物进行了表征。结果表明,在相同条件下,NGE催化剂的聚合活性远高于M催化剂,乙烯与1-己烯共聚合能力强于M催化剂,共聚物的相对分子质量分布略宽。A novel NGE catalyst with high efficiency for ethylene gas phase polymerization was prepared through a simple synthesis method. The relationship between the performances of ethylene homopolymerization and ethylene and 1-hexene copolymerization catalyzed by NGE and M catalysts respectively were studied. The structure and properties of the resultant polymer were characterized by differential scanning calorimetry（DSC）,gel permeation chromatography（GPC）and carbon nuclear magnetic resonance（13C-NMR）.The results indicate that in the same condition the catalytic activity of NGE catalyst in ethylene polymerization was much higher than that of the M catalyst, and the NGE catalyst shows higher activity for ethylene and 1-hexene copolymerization and the relative molecular mass distribution of the copolymer is slightly wider in comparison with those of M catalyst.

关 键 词：聚乙烯 齐格勒-纳塔催化剂 复合载体 共聚合 

分 类 号：O631.5[理学—高分子化学]