分散法合成树枝状超支化聚酯及其表征

Synthesis and characterization of dendritic hperbranched polyester based on divergent method

以三羟甲基丙烷、邻苯二甲酸酐和环氧丙醇为原料,探索了发散法合成末端含大量羧基和羟基的第一代、第二代树枝状超支化聚酯,并且通过测定分析研究了合成条件及性能。这种树枝状超支化聚酯具有可控的精确结构,大量分子末端基团易于改性,粘度低,热稳定性好,是一种性能优良的高分子材料,在光固化涂层和粘合剂等领域具有广阔的应用前景。

Using the divergent method, the first and the second generation of dendritic hperbranched polyesters were synthesized based on trimethylolpropane, phthalic anhydride and glycerol. The reaction condition and characteristics were studied by measuring and analysing. This dendritic hperbranched polyester had controllable and accurate structure with a large number of end groups modified easily. It possessed low viscosity and good thermal 5table characterization. The results indicated the dendritic hyperbranched polyester as a good macromolecule material would have an extensive foreground applied in the field of UV coating and adhesive.