γ辐射接枝甲基丙烯酸改善聚醚砜膜亲水性的研究  

Hydrophilicity improvement of polyethersulfone membranes by grafting methacrylic acid with γ-ray irradiation

作　　者：李晶[1] 侯铮迟[1] 谢雷东[1] 张凤英[1] 邓波[1] 

机构地区：[1]中国科学院上海应用物理研究所,上海201800

出　　处：《辐射研究与辐射工艺学报》2005年第1期25-28,共4页Journal of Radiation Research and Radiation Processing

摘　　要：利用 γ 射线共辐照技术在聚醚砜(PES)膜上接枝了甲基丙烯酸。通过改变甲基丙烯酸单体浓度,获得了具有不同接枝率的改性 PES 膜。研究结果表明,在单体浓度<10%的范围内,接枝率与单体浓度成线性关系,提高接枝率有助于改善聚醚砜膜的亲水性。Grafting methacrylic acid onto poly(ether sulfone) membranes was realized by means of simultaneous irradiation in liquids. The modified membranes with different grafting ratios were obtained by changing the concentration of methacrylic acid. It was shown that the grafting ratio increased lineally as the monomer concentration was less than 10% and hydrophilicity of the membranes was improved with increasing grafting ratios.

关 键 词：辐射接枝 亲水性 聚醚砜 甲基丙烯酸 

分 类 号：O631.3[理学—高分子化学] 4[理学—化学]