文章摘要
含氟嵌段共聚物蜂窝状多孔膜制备与表征
Preparation and Characterization of Honeycomb Membranes with Fluorinated Acrylate Block Copolymer
  
DOI:10.16865/j.cnki.1000-7555.2017.08.002
中文关键词: 原子转移自由基聚合  静态呼吸图法  疏水性  微生物粘附
英文关键词: atom transfer radical polymerization  breath figure technique  hydrophobicity  bacterial adhesion
基金项目:国家自然科学基金青年基金资助项目(51203015);中国博士后科学基金资助项目(2014M551602);江苏省工业支撑项目(BE2014821);江苏省产学研前瞻项目(BY2014037-05);江苏省博士后基金(1401083B);常州市科技支撑(工业)项目(CE2015002)
作者单位
沙 龙1,陈政翰1,赵 晨1,张洪文1,姜 彦1,2,3,蒋 姗1,丁永红1,俞 强1 1. 常州大学 材料科学与工程学院,江苏 常州 213164; 2. 南京林业大学 材料科学与工程学院,江苏 南京 210037; 3. 江苏晨光涂料有限公司,江苏 常州 213154 
摘要点击次数: 62
全文下载次数: 
中文摘要:
      采用原子转移自由基聚合(ATRP)方法,合成聚苯乙烯(PS)大分子引发剂,再引发甲基丙烯酸十二氟庚酯制备嵌段共聚物(PS-b-PDFHMA)。将嵌段共聚物与纳米二氧化钛(TiO2)复合,利用静态呼吸图法制备抑菌性多孔膜。通过傅里叶变换红外光谱、核磁共振氢谱、凝胶渗透色谱等对嵌段共聚物结构、组成及相对分子质量进行分析和表征;利用扫描电子显微镜对多孔膜表面形貌和膜层结构进行观察;利用接触角测试仪和微生物粘附实验研究多孔膜表面润湿性及对微生物粘附的影响。结果表明,以水滴为模板的多孔膜相较于不含孔薄膜疏水性有一定改善,但细菌粘附量提高,与TiO2 复合后,多孔膜表面粗糙度上升,水接触角可达136°,其表面细菌粘附量明显下降。
英文摘要:
      Polystyrene (PS) initiator was synthesized by atom transfer radical polymerization (ATRP) ,which was introduced to trigger copolymerization of 1H,1H,7H-dodecafluoroheptyl methacrylate(DFHMA). The porous films were prepared by mixing the block copolymer with nano-titanium dioxide(TiO2) via breath figure technique. The structure and properties of PS-b-DFHMA copolymer and porous films were studied. FT-IR, GPC and 1H-NMR were used to characterize the structures, composition and molecular weight of copolymer. The results show that PS-b-PDFHMA copolymer is successfully prepared with controlled structure. Besides, scanning electron microscopy (SEM) was used to characterize the surface morphology of porous films. The wettability and bacterial adhesion of porous films were measured by contact angle and microbial adhesion tests. It suggests that the hydrophilic property of porous films is related to the surface morphology and composition of solution. Those porous films show good hydrophobic performance, and the water contact angle increases to 136° when it is mixed with TiO2, and the amount of bacterial adhesion is declined obviously.
查看全文   查看/发表评论  下载PDF阅读器
关闭