组织工程用PEGDA水凝胶材料低温等离子体接枝聚合  

Low Temperature Plasma Treatment for the PEGDA-Based Hydrogels

作　　者：谭帼馨[1,2] 王迎军[2] 宁成云[2] 陈荣[1] 尹兆益[2] 田冶[2] 

机构地区：[1]广东工业大学轻工化工学院应用化学系,广东广州510006 [2]华南理工大学材料学院生物材料研究所,广东广州510640

出　　处：《高分子材料科学与工程》2009年第12期13-15,共3页Polymer Materials Science & Engineering

基　　金：广东省自然科学基金资助项目(06300082);国家自然科学基金资助项目(50502015;50872035)

摘　　要：采用自由基聚合法合成了聚乙二醇双丙烯酸酯(PEGDA)/甲基丙烯酸β-羟乙酯(HEMA)共聚物水凝胶,材料表面在非反应性气体氩气气氛下进行等离子体表面处理,并在紫外光辐照条件下进行丙烯酰胺接枝共聚。红外谱图证明PEGDA/HEMA共聚物水凝胶上接枝了酰胺基团,材料的亲水性提高,等离子体表面处理后,材料表面形成含氧基团,氮原子含量增加。The poly（ethylence glycol） diacrylate（PEGDA）/2-hydroxyethyl methacrylate（HEMA） hydrogels crosslinked network copolymers were prepared by living radical polymerization.The hydrogels were immersed into acrylamide solution by UV-light after being treated by argon（Ar）-plasma.Attenuated total reflection-flourier transform infrared（ATR-FT-IR） spectroscopy showed that the amide linkage has been substantially introduced to surface of PEGDA/HEMA hydrogels as plasma treatment proceeded.Contact angle on Ar-plasma treated surface decreased with increasing of the concentration acrylamide solution,which improves the hydrophilicity of the PEGDA-based hydrogel surface.X-ray photoelectron spectroscopy（XPS） showed that nitrogen has been introduced,which increases from 0.416% to 3.352% on the surface of membrane after modification.

关 键 词：低温等离子体 水凝胶 聚乙二醇双丙烯酸酯 甲基丙烯酸Β-羟乙酯 

分 类 号：TQ316.343[化学工程—高聚物工业]