Synthesis and Properties of Polymers Based on Oligo(hexafluoropropene oxide) Containing Methacrylates and Copolymers with Methyl Methacrylate

Autor:	Martin Möller, Peter-Jan Slangen, M.J. Krupers
Rok vydání:	1998
Předmět:	chemistry.chemical_classification Polymers and Plastics Organic Chemistry Radical polymerization Polymer Macromonomer Methacrylate Inorganic Chemistry chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry Copolymer Side chain Methyl methacrylate Glass transition
Zdroj:	Macromolecules. 31:2552-2558
ISSN:	1520-5835 0024-9297
Popis:	Three series of methacrylate homopolymers with oligo(hexafluoropropene oxide), (HFPO)n, side groups and copolymers based on methyl methacrylate were prepared by free radical polymerization. Each series consisted of a polymethacrylate backbone with substituted HFPO side chains of different length ranging from the corresponding tri- and tetramers to a pentamer. In case of the (HFPO)3MA copolymers, glass transition temperatures decreased linearly with increasing (HFPO)3MA content over the entire composition range. In contrast, two different regimes were distinguished for (HFPO)5MA-containing copolymers, and also for the (HFPO)4MA homopolymer two Tg's were discerned. At low HFPO content the glass transition temperatures decreased with increasing (HFPO)5MA substitution. Above 50 mol % two glass transitions were observed, indicating microphase separation. Copolymers with only 10 mol % of (HFPO)nMA exhibited a low surface energy as is typical for highly fluorinated polymers. Dispersion force surface energies wer...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::83a22d2207e10ab19edb8c110444c7e7 https://doi.org/10.1021/ma9701245 Zobrazit plný text záznamu