摘要
本文以聚砜为基材 ,采用共混法 ,利用聚原酸酯 -b -聚乙二醇嵌段共聚物中聚乙二醇段表面自由能高的特性 ,对材料表面进行改性。用扫描电子显微镜对表面微形态进行观察 ,以接触角来评价材料表面的亲疏水性。研究结果表明 ,材料表面出现微观相分离结构 ,且因聚乙二醇段富集于表面 。
The general method modifying hydrophobic polysulfone to produce highly hydrophilic surfaces was developed. This method is the blend technique. We used scanning electronic microscopy to examine the phase behavior of A-B diblock copolymer of poly(ortho esters)-b-poly(ethylene glycol). Because PEG has high surface energies in copolymer, PSF membranes were modified and improved the surface hydrophilicity and hemocompatibility.
出处
《化学工业与工程》
CAS
2002年第1期32-35,49,共5页
Chemical Industry and Engineering
