One-step preparation of vinyl-functionalized material surfaces:a versatile platform for surface modification  

作　　者：DU Jun LIU XiaoLi LIU Wei WU ZhaoQiang CHEN Hong 

机构地区：[1]College of Chemistry, Chemical Engineering and Materials Science, Soochow University

出　　处：《Science China Chemistry》2014年第4期654-660,共7页中国科学（化学英文版）

基　　金：supported by the National Science Fund for Distinguished Young Scholars(21125418);the National Natural Science Foundation of China(21174098,21304062 and 21334004);the Natural Science Foundation of Jiangsu Higher Education Institutions of China(13KJB430020);the China Postdoctoral Science Foundation(2013M541714)

摘　　要：A simple approach has been developed to functionalize various substrates, such as gold and polyvinylchloride, with dopamine methacrylamide—a molecule with adhesive properties that mimic those of mussels—to produce a versatile and general platform for subsequent surface modification. With active double bonds on the surface, various polymers, such as poly([2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl) ammonium hydroxide(PMEDSAH) and poly(N-vinylpyrrolidone)(PVP), can be grafted by conventional radical polymerization. Double bond surface functionalization and subsequent polymer grafting have been verified by static water contact angle, Fourier transform infrared–attenuated total reflectance(FTIR-ATR) spectroscopy and X-ray photoelectron spectroscopy(XPS) measurements. Protein adsorption assays showed that the polymermodified substrates have good protein-resistant properties. Considering the advantages of facility, versatility and substrate- independence, this method should be useful in designing functional interfaces for bioengineering applications.A simple approach has been developed to functionalize various substrates, such as gold and polyvinylchloride, with dopamine methacrylamide--a molecule with adhesive properties that mimic those of mussels--to produce a versatile and general plat- form for subsequent surface modification. With active double bonds on the surface, various polymers, such as poly（[2-（methacryloyloxy）ethyl]dimethyl-（3-sulfopropyl） ammonium hydroxide （PMEDSAH） and poly（N-vinylpyrrolidone） （PVP）, can be grafted by conventional radical polymerization. Double bond surface functionalization and subsequent polymer grafting have been verified by static water contact angle, Fourier transform infrared-attenuated total reflectance （FTIR-ATR） spectroscopy and X-ray photoelectron spectroscopy （XPS） measurements. Protein adsorption assays showed that the polymer- modified substrates have good protein-resistant properties. Considering the advantages of facility, versatility and substrate- independence, this method should be useful in designing functional interfaces for bioengineering applications.

关 键 词：surface modification DOPAMINE gold POLYVINYLCHLORIDE radical polymerization 

分 类 号：TQ316.6[化学工程—高聚物工业]