聚乙二醇刷型聚合物在聚砜膜上的光化接枝  

Photografting of Poly(Ethylene Glycol) Polymer Brush on Polysulfone Film

作　　者：梁博[1] 孙璐[2] 孙树东[2] 乐以伦[2] 

机构地区：[1]西北第二民族学院材料科学系,宁夏银川750021 [2]四川大学高分子科学与工程学院,四川成都610065

出　　处：《高分子材料科学与工程》2008年第10期163-166,共4页Polymer Materials Science & Engineering

摘　　要：对在聚砜薄膜上接枝的聚乙二醇的形貌做了大量研究,探讨了在透明平整的无孔聚砜薄膜上接枝刷型聚乙二醇的条件。首先制作出了透明且光滑平整的无孔聚砜薄膜,然后以对叠氮苯甲酸为光敏剂,在λ=365 nm紫外光的辐照下,用二步法将聚乙二醇接枝在聚砜膜表面,通过X射线-光电子能谱分析、原子力学显微镜及椭圆偏振仪等测试手段,对接枝前后聚砜膜表面形貌进行了表征,证明接枝的聚乙二醇层呈刷状。A great number studies was carried out on the surface photograph of polysulfone（PSF） films tethered methoxy poly（ethylene glycol） （MPEG） and the conditions on which the mono-layered PEG brush was obtained. First, we made the PSF films of lowest roughness by spin-coating. Then grafting of polymer brush on the surface of polysulfone film by sequential UV irradiation with 4- azidobenzoic acid as the photocoupler was carried out. X-ray photoelectron spectroscopy, atomic force micrascope and ellipsometer were used to characterize the structure of the end-grafted PEG layer. Evidences infer that a brush-like PEG layer is tethered on PSF film.

关 键 词：聚砜薄膜 聚乙二醇刷 接枝 椭圆偏振仪 

分 类 号：TQ316.343[化学工程—高聚物工业]