用负载型钛系催化剂进行丙烯-丁二烯共聚合的研究(Ⅱ)——低丁二烯含量的共聚反应及共聚物的接枝试验  

Studies on the Copolymerization of Propylene and Butadiene with Supported Titanium Catalysts(Ⅱ)--Copolymerization with low Butadiene-content and Graft on Copoiymers

作　　者：伍青[1] 卢泽俭[1] 陆耘 林尚安[1] Wu Qing;Lu Zejian;Lu Yun;Lin Shangan(Polymer Institute,Zhongshan University,Guangzhou)

机构地区：[1]中山大学高分子研究所

出　　处：《高等学校化学学报》1987年第8期752-757,共6页Chemical Journal of Chinese Universities

摘　　要：低丁二烯含量的丙烯-丁二烯混合单体在负载型钛系催化剂中发生聚合。考察了催化剂Ti浓度、Al/Ti比、苯甲酸乙酯(EB)浓度、聚合温度和聚合溶剂对共聚催化效率、共聚物中丁二烯链节含量和共聚物的比浓粘度的影响。用乙烯基单体在低丁二烯链节含量的共聚物上进行接枝试验,初步结果表明丙烯链上引入不饱和键可以提高其接枝能力。Copolymerization of propylene with small amount of butadiene by using TiCl_(4)/MgCl_(2)/AlEt_(3)/EB catalyst has been carried out.The influences of polymerization temperature,solvent species and concentration of titanium,triethylalu-minum,EB on catalytic efficiency,buiadiene unit content,and reduced viscosity of copolymers have been investigated.The copolymer containing 8mol% butadiene unit can be chemically grafted with polar vinyl monomers such as maleic anhydride and methyl methacrylatc in toluene solution in the presence of benzoyl peroxide with ease.

关 键 词：比浓粘度 不饱和键 混合单体 丁二烯 乙烯基单体 聚合温度 接枝 催化效率 

分 类 号：TQ3[化学工程]