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.
出处
《化工新型材料》
CAS
CSCD
北大核心
2009年第11期113-116,共4页
New Chemical Materials
关键词
聚芴
DABCO
膦配体
醋酸钯
polyfluorene
DABCO
phosphine ligand
palladium acetate