树枝状聚酯的合成与表征

Synthesis and Characterization of Dendritic Polyester

以三羟甲基丙烷为核,邻苯二甲酸酐,环氧丙醇为支化结构单元,合成了第一及第二代树枝状聚酯.研究了温度、投料比、加料方式等因素对合成的影响.对每一代产物进行了核磁共振氢谱(1HNMR),红外吸收光谱(FT IR),凝胶渗透色谱(GPC)表征.

The first and second generation of dendritic polyesters have been prepared by divergent synthetic ways using trimethylopropame(TMP) as core and o-phthalic anhydride(OPA), glycidol as branched units. The effects of reaction temperature, ratio of reactants and the ways of adding reactants on reaction conversion, molecular weight and molecular weight distribution of the oligomer were studied. The dendrimers were characterized by GPC, FT-IR,^(1)HNMR.