两亲性芳香族超支化聚酯的合成、表征及自组装研究

Synthesis, Characterization and Self-Assembly of Amphiphilic Aromatic Hyperbranched Polyesters

以1,2,4-苯三酸酐和聚乙二醇(聚乙二醇300、聚乙二醇400、聚乙二醇600)为反应单体,首次通过缩聚法合成了一系列两亲性芳香族超支化聚酯.通过FT-IR、1H NMR、GPC、DSC、TGA对超支化聚酯的结构和性能进行了表征,结果表明,利用缩聚法成功合成了两亲性超支化聚酯,并且两亲性超支化聚酯的热性能稳定.两亲性超支化聚酯在水中自组装成囊泡,可以用作微反应器和药物封装等.

A series of amphiphilic aromatic hyperbranched polyesters （HBPEs） were firstly synthesized by way of polycon- densation with 1,2,4-benzenetricarboxylic anhydride （BTAA） and polyethylene glycol （PEG300, PEG400, PEG600）. Structure and property of HBPEs were characterized by FT-IR, 1H NMR, GPC, DSC and TGA. The obtained HBPEs have a good thermal stability and can self-assemble into vesicles in water. These vesicles might be applied as microreactors or drug carriers etc.