2-亚甲基丁二酸酐和甲基丙烯酸甲酯的共聚反应研究

Study on Copolymerization of Itaconic Anhydride and MMA

2—亚甲基—丁二酸酐(M_1,ITANH)和甲基丙烯酸甲酯(M_2,MMA)在四氢呋喃(THF)中以过氧化二苯甲酰(BPO)作引发剂进行自由基共聚合。由作图法衣得这两种单体在66℃的共聚竞聚率:表明它们趋于嵌均共聚。用粘度法和GPC测量了共聚物的分子量和分子量分布。共聚物在温和的条件下进行部分水解,得到一带有短的羧基侧链的聚电解质[11]。将[11]与无机盐LiClO_4混合后测得电导率δ-2.8272×10^(-4)S·cm^(-1),表明它具有较好的离子导电性。

Copolymerization of itaconic anhydride(M1) and MMA(M2) was carried out in THF with BPO as initiator and the Copolymerization coversion was controlled at about 10%. The reactivity ratios (r1 and r2) of the two monomers were calculated and molecular weights of the copolymers were measured.A new kind of polyelectrolyte with pendant cnrboxylic groups on the backbone was obtained through selective hydrolysis of the copolymer in water. The mixture of the polyelectrolyte with inorganic salt LiClO4, showed reletively high conductivity :δ-2.827×10-4.cm-1