论文部分内容阅读
用微臭氧化－薄层层析法分析测定了复合催化剂ＡｌＣｌ_３／ＳｂＣｌ_３，在不同Ｓｂ／Ａｌ比、投料比、溶剂和温度等条件下的α－菠烯（Ｍ_１）／苯乙烯（Ｍ_２）共聚产物的构成，表明该复合催化剂可获得～１００％共聚体，其中α－蒎烯链节含量Ｆ１可在３０％～５６％之间调控。在仅生成共聚体的条件下由Ｍａｙｏ－Ｌｅｗｉｓ积分式首次测定了竞聚率。ＡｌＣｌ_３／ＳｂＣｌ_３和单独ＡｌＣｌ_３相比，ｒ１增大，ｒ２减小，ｒ２／ｒ１值降低了５～６倍，使不易共聚的Ｍ_１／Ｍ_２变为易于共聚，可制备Ｍ_１组分含量高的共聚体。确认该复合催化剂对Ｍ_１／Ｍ_２的优良共聚合性能在于阳离子聚合活性种的非质子和抗衡阴离子（团）的特殊结构和性质．
The micro-ozonation-thin layer chromatography was used to determine the molar ratio of α-spinne (M_1) / styrene (M_2) to the composite catalyst AlCl_3 / SbCl_3 under different conditions such as Sb / Al ratio, The composition of the product shows that the composite catalyst can obtain ~ 100% copolymer, wherein the content of α-pinene chain segment F1 can be regulated between 30% and 56%. The reactivity ratio was first determined by the Mayo-Lewis integral formula under the conditions of only interfacial formation. Compared with AlCl 3 alone, AlCl 3 / SbCl 3 increases r 1, decreases r 2 and decreases r 2 / r 1 5 to 6 times, making M 1 / M 2, which is not easily copolymerized, easy to copolymerize to prepare copolymer with high content of M 1 . It was confirmed that the excellent copolymerizability of the composite catalyst to M 1 / M 2 lies in the special structures and properties of the aprotic and counter anions (cations) of the cationic polymerization active species.