文献类型：期刊文献

中文题名：化学键合法制备长效抗菌聚对苯二甲酸乙二醇酯材料及其性能

英文题名：Preparation and Characterization of Long-acting Antimicrobial Polyethylene Terephthalate via Covalent Bonding Method

作者：张祺[1];陆甦晖[1];郑安呐[1];管涌[1];危大福[1];黄添华[1];李书召[1]

机构：[1]华东理工大学材料科学与工程学院,上海市先进聚合物材料重点实验室,超细材料制备与应用教育部重点实验室,上海200237

年份：2014

卷号：35

期号：4

起止页码：873

中文期刊名：高等学校化学学报

外文期刊名：Chemical Journal of Chinese Universities

收录：CSTPCD;;EI(收录号：20141917703858);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000334986100032)】；北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：Supported by the Natural Science Foundation of Shanghai, China(No.13ZR1411400, 12ZR1407800).

语种：中文

中文关键词：聚对苯二甲酸乙二醇酯;化学键合;长效抗菌;接枝改性;胍盐抗菌剂

外文关键词：Polyethylene terephthalate;Covalent bonding;Long-acting antibacterial;Graft modification;Guanidine-based antimicrobial polymers polyhexamethylene guanidine hydrochloride

摘要：通过化学反应将抗菌剂聚六亚甲基盐酸胍(PHMG)键合到聚对苯二甲酸乙二醇酯(PET)基体上,制得抗菌剂质量分数为15%的PET抗菌母料(PET-g-PHMG),PHMG与PET的键合效率达93.7%.透射电子显微镜(TEM)结果表明,化学键的键合作用提高了PHMG与PET的相容性,使得极性的PHMG以纳米尺寸均匀分布在PET-g-PHMG中.在PET基体中添加少量PET-g-PHMG,可制成不同抗菌剂含量的PET样品,抗菌母料PET-g-PHMG的添加可抑制PET基体的降解,提高抗菌PET样品的特性黏度.所得抗菌PET样品对大肠杆菌和金黄色葡萄球菌的抑菌率均在99%以上,即使反复水洗,抗菌性能也无明显降低.该抗菌PET样品具有良好的可纺性,通过熔融纺丝可以制成抗菌PET纤维,其抗菌性能具有耐水洗性,抗菌动力学测试结果表明,该抗菌PET样品对革兰氏阴性和阳性细菌还具有较快速的杀灭作用.
Polyhexamethylene guanidine hydrochloride(PHMG)was uesd to produce a long-acting antimicro-bial polyethylene terephthalate(PET)masterbatch(PET-g-PHMG),which was obtained by covalently bonding 15%PHMG based on total weight onto PET matrix.Attributed to the higher grafting efficiency(93.7%),the hydrophilic PHGH is uniformly dispersed in PET matrix without any aggregate,which potentially enhances its antimicrobial activity.Several antimicrobial PET samples can be prepared by adding specific amount of PET-g-PHMG into the PET matrix.It was found that the addition of PET-g-PHMG did not cause the degradation of PET matrix,instead,increased the intrinsic viscosity because of the presence of some un-reactive functional groups in the PET-g-PHMG.The antimicrobial PET samples showed quickly and efficiently antimicrobial activity against both Gram-positive and Gram-negative bacteria.Furthermore,the antimicrobial activity of the antimicrobial PET fibers prepared by a spun-bonded method remained even after constant water washing for 10 d,indicating its long-acting antimicrobial ability via a contact activity rather than a release mechanism.