Nitroxide-mediated homo- and block copolymerization of styrene and multifunctional acryl- and methacryl derivatives

Autor:	Meizhen Yin, Tilo Krause, Brigitte Voit, Wolf D. Habicher, Martin Messerschmidt
Rok vydání:	2005
Předmět:	Nitroxide mediated radical polymerization Polymers and Plastics Bulk polymerization Organic Chemistry Radical polymerization Styrene chemistry.chemical_compound Polymerization chemistry Polymer chemistry Materials Chemistry Copolymer Molar mass distribution Organic chemistry Polystyrene
Zdroj:	Journal of Polymer Science Part A: Polymer Chemistry. 43:1873-1882
ISSN:	1099-0518 0887-624X
DOI:	10.1002/pola.20667
Popis:	The ability of different alkoxyamines (I1, I2, I3, I4, and I5) to initiate controlled radical polymerization of styrene was evaluated. Among them, 2-hydroxymethyl-2-[(2-methyl-1-phenyl-propyl)-(1-phenyl-ethoxy)-amino]-propane-1,3-diol (I5) gave the highest polymerization rate of styrene, and the best control over the molecular weight and the molecular weight distribution of polystyrene. Kinetic studies confirmed that with initiator I5 the polymerization of styrene proceeded in a controlled way. The controlled radical homopolymerization of multifunctional acryl- and methacryl derivatives using initiator I5 could not be realized as demonstrated by the high polydispersities (PD) obtained. However, it was possible to polymerize multifunctional acryl- and methacryl derivatives using a polystyrene macroinitiator (Pst) and, thus, novel amphiphilic block copolymers with a narrow molecular weight distribution were obtained. © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 43: 1873–1882, 2005
Databáze:	OpenAIRE
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