The numerous functional groups and dendritic structure of hyperbranched polymers render them for a wide range of applications. In this study, hyperbranched polymer Boltorn H20, containing abundant hydroxyl groups, was modified to prepare quaternary ammonium functionalized hyperbranched polymers, QAS-HPs. The synthesized QAS-HPs were coated on polyethylene terephthalate (PET) fabrics by electron beam radiation. The PET fabrics were endowed antimicrobial and hydrophilic properties after modification. The water contact angles of the modified PET fabrics were tested, and the results showed significant improvement in hydrophilicity. The results of antibacterial efficacy tests showed that the modified PET fabrics could inactivate 100% of Staphylococcus aureus (S.aureus) and 90.8% of Escherichia coli O157:H7 (E. coli O157:H7) with 30 min of contact time.

超支化聚合物的众多官能团和树状结构使其具有广泛的应用范围。在这项研究中，对含有大量羟基的超支化聚合物Boltorn H20进行了改性，以制备季铵官能化的超支化聚合物QAS-HP。通过电子束辐射将合成的QAS-HPs涂覆在聚对苯二甲酸乙二醇酯（PET）织物上。改性后，PET织物具有抗微生物和亲水性。测试了改性PET织物的水接触角，结果显示出亲水性的显着改善。抗菌效果测试结果表明，改性的PET织物可以灭活100％的金黄色葡萄球菌（S. aureus）和90.8％的灭活金黄色葡萄球菌。大肠杆菌O157：H7（E. coli O157：H7）的接触时间为30分钟。