Synthesis, characterization, and aqueous properties of new amphiphilic copolymer with fluorocarbon groups

Autor: Dun Ao, Wang Xiaojin, Caiyu Song, Jian Zhang, Yebang Tan
Rok vydání: 2013
Předmět:
Zdroj: Colloid and Polymer Science. 291:2815-2823
ISSN: 1435-1536
0303-402X
DOI: 10.1007/s00396-013-3028-4
Popis: A series of amphiphilic copolymers with fluorocarbon groups (Poly(AMPS-co-FS), PAMFS) were synthesized by the radical copolymerization of sodium 2-acryamido-2-methylpropanesulfonate (AMPS) and styrene derivatives with a fluorocarbon side chain (FS). The structures and molecular characteristics of PAMFS were confirmed by 1H-NMR, 19F-NMR, elemental analysis, and static light scattering. The aggregation behavior of the copolymer in aqueous solution was studied by surface tension, electrical conductivity, dynamic laser light scattering, transmission electron microscopy, and fluorescence measurements at different conditions. The results indicated that the surface activity of PAMFS is dependent on the content of fluorocarbon groups in the copolymer structure. The surface tension (γ cmc) and critical micelle concentration of PAMFS decrease with the increase of sodium chloride concentration. The copolymers formed micelle-like aggregates and the fluorocarbon groups exhibited a strong tendency for intermolecular association.
Databáze: OpenAIRE