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1Anti-fouling ultrafiltration membrane prepared from polysulfone-graft-methyl acrylate copolymers by UV-induced grafting method显示文摘膜犯规是在膜面对的最重要的挑战之一极端过滤操作。压克力吃了的 polysulfone-graft-methyl 的共聚物被影响嫁接的度的同类的开始相片的接枝 copolymerization.The 变量综合,例如时间紫外(紫外可见) 照耀和压克力吃了的甲基和相片开始者的集中,被调查。接枝共聚物膜被阶段倒置方法准备。化学、词法的变化被红外线的光谱学(ATR/FT-TR ) ,扫描电子显微镜学,和水联系的稀释全部的 reflection-Fourier 变换描绘角度大小。结果表明甲基压克力吃了组在膜和压克力吃了的甲基的接枝度上是在场的膜的表演上的有的显著效果。有甲基压克力的增加的膜表面减少上的纯水接触角度吃了接枝度,它显示接枝共聚物膜的 hydrophilicity 被改进。纯水和牛的浆液白朊答案的浸透流动被测量评估对接枝共聚物膜,其结果显示出为接枝共聚物膜对性质犯规的反的改进的性质犯规的反。HUA Helin LI Na WU Linlin ZHONG Hui WU Guangxia YUAN Zonghuan LIN Xiangwei TANG Lianyi 2008Journal of Environmental Sciences2008,20,5:11
2Gas-initiation under UV and liquid-grafting polymerization on the surface of polysulfone hollow fiber ultrafiltration membrane by dynamic method显示文摘Using the inner-surface of polysulfone hollow fiber ultrafiltration membranes as grafted layer, the method of gas-initiation and liquid-polymerization has been studied, which aimed to adjust the diameter of the pores in the membranes. The degree of polymerization varied with the changes of the parameters, such as irradiation time, monomer concentration, temperature and time of polymerization and so on. The results indicated that using benzophenone(BP) which is in a gaseous condition as photo-initiator, acrylamide as graft monomer, the polyacrylamide chain was grafted on the surface of membranes. After the surface membrane being modified, the water flux and retention altered,and thus it can be seen that the diameter of the pores in the membrane was altered. These experiments contribute to finding a new way to produce the hollow fiber membrane with the small pore size and are extraordinarily worth developing and studying.SHENYing-jie WUGuang-xia XUShu-guang ZHONGHui ZHANGShao-lai ZHANGXue-zhu ZHAOXian-hong WUTong ZHANGWei-jun 2005Journal of Environmental Sciences2005,17,3:2
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