氧化剂引发的多巴胺的聚合.pdfVIP

COMMUNICATION /polymers | Polymer Chemistry Oxidant-induced dopamine polymerization for multifunctional coatings† Qiang Wei, Fulong Zhang, Jie Li, Beijia Li and Changsheng Zhao* Received 11th July 2010, Accepted 21st August 2010 DOI: 10.1039/c0py00215a Polydopamine-coatings can be prepared in acidic, neutral and investigate the oxidant-induced-polymerization of DA to expand the alkaline aqueous media by oxidant-induced polymerization, which is application of polydopamine film. Herein, we present a general and material-independent and multifunctional for surface modification. easy surface modification strategy of oxidant-induced dopamine polymerization for multifunctional coatings. Oxidant was used to induce dopamine polymerization to modify several substrates, Modification of materials’ surfaces plays an important role in including metal, ceramic, and polymer, as indicated in Scheme 1. And modern chemical, biological, and materials sciences.1 Widespread a variety of secondary immobilization reactions using the oxidant- methods for surface modification, such as self-assembled monolayers, induced modified surfaces as the bases can also led to various func- organosilane chemistry, Langmuir–Blodgett deposition, layer-by- tional coatings as the pH-induced modified surface. layer assembly, and genetically engineered surface-binding peptides, Ammonium persulfate (AP) was firstly chosen as the oxidant. work well on particular materials’ surfaces compatible with the Substrates were modifi