Substrate-independent Cu(0)-mediated controlled radical polymerization: grafting of block copolymer brushes from poly(dopamine) modified surfaces

Autor:	Daniel Hafner, Rainer Jordan
Rok vydání:	2020
Předmět:	chemistry.chemical_classification Materials science Polymers and Plastics Organic Chemistry Radical polymerization Bioengineering Polymer Methacrylate Biochemistry Styrene chemistry.chemical_compound Monomer chemistry Chemical engineering Polymerization Bromide Copolymer
Zdroj:	Polymer Chemistry. 11:2129-2136
ISSN:	1759-9962 1759-9954
DOI:	10.1039/c9py01343a
Popis:	A method is presented allowing the preparation of polymer brushes from numerous monomers and on a variety of substrates. Poly(dopamine) (PDA) is used to cover a series of different surfaces (SiO2, Au, Cu, Al/Al2O3, Teflon) and for the subsequent preparation of bromine containing initiator layers by conversion with 2-bromoisobutyryl bromide (BiBB). Surface-initiated Cu(0)-mediated controlled radical polymerization (SI-CuCRP) enables a rapid polymerization of methacrylates and styrene on the PDA/BiBB layers with minimal effort. When the substrates are faced with a copper plate and submerged into reaction solution containing monomer, solvent and ligand, thick polymer brushes up to hundreds of nanometers can be achieved within 1 h. Despite the simplicity of the method and the fast polymerization rates at room temperature, an outstanding endgroup fidelity, which is unmatched for surface polymerization, can be observed. This fact is demonstrated by the preparation of pentablock copolymer brushes representing the highest block number ever reported for surface-bound polymer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e4a12f3164277cff7b425903a0e8472f https://doi.org/10.1039/c9py01343a Zobrazit plný text záznamu