Pd(OAc)_2/DABCO催化体系在聚-9,9-二辛基芴合成中的应用  

Pd(OAc)_2/DABCO-catalyst system in the polymerization of 9,9-dioctylfluorene

作　　者：方志国[1] 李坚[1] 张杰[1] 

机构地区：[1]江苏工业学院材料科学与工程学院,常州213100

出　　处：《化工新型材料》2009年第11期113-116,共4页New Chemical Materials

摘　　要：以Pd(OAc)2/DABCO(三乙烯二胺)组成催化体系,运用Suzuki偶合法成功合成出聚-9,9-二辛基芴。结果表明,配体的用量、溶剂及弱碱的种类对反应的聚合度都有一定的影响。当催化剂与配体的摩尔比为1∶12,以甲苯和DMF为溶剂且体积比为1∶1,再以碳酸钾为弱碱,于110℃条件下反应12h可以得到高分子量的目标聚合物。Poly（9,9-dioctyl fluorine）（PF8） was successfully synthesized using a new catalyst system composed of palladium acetate [Pd（OAc）2] and triethylenediamine（DABCO） through Suzuki coupling.The experiment results showed that the amount of ligand,the kinds of solvents and weak bases had a great impacts on the degree of polymerization of PF8.The target polymer with high molecular weight was obtained,under following polymerization conditions： molar ratio of the Pd（OAc）2 to DABCO was 1∶12;toluene and DMF as solvents and their volume ratio was 1 ： 1, potassium carbonate as a weak base at 110℃ for 12 hours.

关 键 词：聚芴 DABCO 膦配体 醋酸钯 

分 类 号：O631.3[理学—高分子化学]