摘要
采用苯乙烯、氯丙烯、二乙烯苯,通过悬浮聚合,合成高分子小球,高分子链上枝接巴士比酸,制备聚巴士比酸氯胺化合物前驱体.利用SEM和FTIR对其形貌及组成进行表征.通过反应物比例、反应pH值等条件优化,制备了中空和纳米级两种抗菌小球,发现液体石蜡可调节抗菌材料的粒径和孔径大小,二乙烯苯的加入量可调节抗菌材料的表面形态.在NaCl的存在下,在pH=1时,最高产率达到 95%.新型的抗菌小球对大肠杆菌(E coli)和金黄色葡萄球菌(S aureus)具有较好的抑制作用,纳米小球在 20 mg/mL时对 106～107 CFU/mL的E coli和S aureus的杀灭率均达到 100%.在 50 mg/mL中空小球杀灭率达到 99%以上.
Abstract
Polymer pellets were synthesized by suspension copolymerization of styrene,chlorine propylene and diethylene benzene.The chloramine compound precursor was prepared by grafting barbituric acid on the polymer chain.The antibacterial pellets were characterized by SEM and FTIR.Two antibacterial beads of porous and nanoscale were prepared by optimization of reactant ratio and pH.It is found that the atolin can regulate the particle and aperture size of the antibacterial material,and diethylene benzene can adjust the surface morphology of the antibacterial material.In the presence of NaCl,the antibacterial material reached the high yield of 95%at pH = 1.The nanospheres had good inhibition on Escherichia coli(E.coli)and staphylococcus aureus(S.aureus).The killing rate of E.coli and S.aureus on 106～107CFU/mL was up to 100%at 20 mg/ml.In 50 mg/mL,the killing rate ofantibacterial beads reached more than 99%.
基金项目
山西省教育厅教学改革项目(J2021724)
吕梁有机废弃物资源化综合利用重点实验室项目(ZDSYS2018056)
超重力化工过程山西省重点实验室开放基金(CZL2020-04)
吕梁市重点研发重点项目(2021GXYF-1-19)
重大疾病创新药物山西省重点实验室开放基金(2021sxcxyw11)
NETL
NSTL
万方数据