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以偏苯三酸酐,环氧氯丙烷和季戊四醇为原料合成超支化聚酯,采用聚乙二醇(PEG)对合成的超支化聚酯进行改性。通过红外光谱、凝胶渗透色谱等对合成的聚醚改性超支化聚合物进行表征,研究了合成聚合物的表面活性,结果表明:采用PEG600、PEG800和PEG1000对超支化聚合物进行改性得到的聚合物具有良好的表面活性,25℃时它们的临界胶束浓度分别为0.00075g/mL、0.01517g/mL和0.033g/mL。
Hyperbranched polyesters were synthesized from trimellitic anhydride, epichlorohydrin and pentaerythritol. The synthesized hyperbranched polyesters were modified with polyethylene glycol (PEG). The synthesized polyether modified hyperbranched polymers were characterized by infrared spectroscopy, gel permeation chromatography and so on. The surface activities of the synthesized polymers were studied. The results showed that the modification of the hyperbranched polymers with PEG600, PEG800 and PEG1000 Of the polymers have good surface activity and their critical micelle concentrations at 25 ° C are 0.00075 g / mL, 0.01517 g / mL and 0.033 g / mL, respectively.