Synthesis of Heat-Resistant Polyester Containing Rigid Biphenyl Moiety by Palladium-Catalyzed Carbonylation-Polycondensation
作者:Yoshihiro Kubota、Kazuhiko Takeuchi、Taka-aki Hanaoka、Yoshihiro Sugi
DOI:10.1246/bcsj.67.563
日期:1994.2
For the purpose of synthesizing heat-resistant polyesters, the one-step synthesis of a rigid biphenyl-containing polyester from dihalobiphenyl and diol by palladium-catalyzed carbonylation-polycondensation was examined. The reaction parameters, such as the base, solvent, palladium–phosphine catalyst and CO pressure in the reaction of 2,7-dibromo-9,10-dihydrophenanthrene and 4,4′-(1-methylethylidene)bisphenol
为了合成耐热聚酯,研究了由二卤代联苯和二醇通过钯催化的羰基化缩聚反应一步合成含联苯的刚性聚酯。2,7-二溴-9,10-二氢菲与4,4'-(1-甲基亚乙基)双酚(双酚A)反应中的碱、溶剂、钯-膦催化剂和CO压力等反应参数,发现显着影响所得聚酯的分子量。在最佳条件下,聚[氧-1,4-亚苯基(1-甲基亚乙基)-1,4-亚苯基氧羰基(9,10-二氢-2,7-菲二基)羰基](1)的产率为95%高分子量(聚苯乙烯当量 Mw = 102600)。通过选择膦配体和控制一氧化碳的压力,获得的聚合物1的Mw为10000-100000。该程序适用于各种二卤代联苯和二醇。与1,10-癸二醇缩聚得到聚[氧十亚甲基氧羰基...