Fluorocarbon-containing Hydrophobically Associating Polymers: II Synthesis and Characterization of Terpolymer of Acrylamide, Acryloyloxyethyl Trimethyl Ammonium Chloride and (N-ethyl perfluorooctane sulfoamido) Ethyl Acrylate
✍ Scribed by Yun-xiang Zhang; Jin Yang; Ai-hua Da; Yu-qing Fu
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 372 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1042-7147
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✦ Synopsis
Flurocarbon-modified hydrophobically associating terpolymers have been prepared via copolymerization of acrylamide (AM), acryloyloxyethyl trimethyl ammonium chloride (DMAEA-Q) and a small amount of flurocarboncontaining acrylate (RFA) as a hydrophobic third monomer. Three series of terpolymers (AM/DMAEA/Q molar ratio 70/30, 50/50 and 30/70 with various amounts of RFA) were synthesized and the rheological properties of terpolymer solutions were studied. A pronounced hydrophobic association between the fluorocarbon groups in the terpolymer's solutions was observed. The solutions showed pseudoplastic behavior. Evidence for hydrophobic aggregation between the fluorocarbon groups was observed from the viscosity versus concentration profile, effects of shear rate and the addition of NaCl and surfactants on the viscosity of terpolymer solutions.