摘要
辣素是一种环境友好的天然防污剂,具有优良的抑菌性能。研究首先将含有辣素衍生物结构的N-(2-羟基-3-叔丁基-3-甲基苯甲基)丙烯酰胺(MBHBA)和三甲基烯丙基氯化铵(TM)光聚合,合成出具有辣素衍生物结构的阳离子聚电解质P(M-co-T);采用自组装方法将其引入聚丙烯腈(PAN)超滤膜表面进行改性,从而首次制备出新型抑菌荷正电超滤膜。结合接触角、红外光谱、扫描电镜等现代表征手段对膜表面性质进行表征,并考察了该抑菌超滤膜的分离性能和抑菌性能。结果表明,以腐殖酸(HA)溶液为污染物模拟料液,改性膜的截留性能和抑菌性能较原膜均有较大改善。当P(M-co-T)浓度为1000 mg·L-1时,改性膜的截留率和抑菌率分别为95.98%和87.90%;抑菌率随着P(M-co-T)浓度增大而提高,当P(M-co-T)浓度为1500 mg·L-1时,抑菌率高达91.50%。可见,含辣素衍生物结构的新型超滤膜在保证良好分离性能的同时,具有较强的抑菌能力,为高性能膜材料的开发开辟了一条新路径。
A cationic polyelectrolyte with a capsaicin derivative structure was prepared by UV-lightpolymerization using N-（2-hydroxyl-3- butyl-4-methyl） acrylamide （MBHBA） and allyltrimethylammoniumchloride （TM） as monomers. Moreover, a novel antibiotic ultra filtration （UF） membrane was prepared byelectrostatic self-assembly methods. Contact Angle and FT-IR analysis were used to characterize the propertiesof the membrane surface structure. Separation performance and antibacterial properties were also investigated.The results show that the modified UF membrane exhibits better rejection performance and excellent antibacterialproperties when compared to the tmmodified membrane. When the polyelectrolyte concentration is 1000 mg-L-1,the rejection and antibacterial rate can reach up to 95.98% and 87.90%, respectively. The highest antibacterial rateis obtained （91.50%） when the cationic polyelectrolyte concentration is 1500 mg.L-1. This UF membrane withcapsaicin derivatives structure is a promising material for the fabrication of high-efficient membranes.
出处
《高校化学工程学报》
EI
CAS
CSCD
北大核心
2014年第2期317-324,共8页
Journal of Chemical Engineering of Chinese Universities
基金
国家自然科学基金(21306178)
山东省优秀中青年科学家科研奖励基金项目(BS2012HZ016)
山东省科技发展计划(2012GHY11529)
关键词
光聚合
超滤膜
辣素
自组装
抑菌性
UV-light polymerization
ultrafiltration membrane
capsaicin
self-assembly
Antibiotic property
