Water-soluble copolymers. 50. Effect of surfactant addition on the solution properties of amphiphilic copolymers of acrylamide and dimethyldodecyl(2-acrylamidoethyl) ammonium bromide

Journal Article · Mon Apr 11 04:00:00 EDT 1994 · Macromolecules; (United States)

DOI:https://doi.org/10.1021/ma00086a025· OSTI ID:7036994

Chang, Y; Lochhead, R Y; McCormick, C L ^[1]

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1. Univ. of Southern Mississippi, Hattiesburg, MS (United States). Dept. of Polymer Science

The interactions of surfactants sodium dodecyl sulfate (SDS), trimethyltetradecylammonium bromide (TTAB), and Triton X-100 with amphiphilic copolymers of acrylamide and dimethyldodecyl(2-acrylamidoethyl)ammonium bromide (DAMAB) have been investigated in aqueous solutions. The rheological properties of a copolymer/surfactant system are affected by both the microstructure of the copolymer and the nature of the surfactant. Addition of the nonionic surfactant, Triton X-100, resulted in a large increase in the reduced viscosity for the microblocky copolymers with 5 mol % DAMAB, while a radon copolymer with the same composition exhibited a collapsed conformation in the presence of the cationic surfactant, TTAB. A strong viscosity enhancement was observed when SDS was added to the solution of a copolymer containing 0.32 mol % DAMAB. Evidence of mixed micelles formed by surfactant molecules and the hydrophobic groups of the copolymers was obtained utilizing surface tension, pyrene probe fluorescence, and viscometry.

• OSTI ID: 7036994
• Journal Information: Macromolecules; (United States), Journal Name: Macromolecules; (United States) Vol. 27:8; ISSN MAMOBX; ISSN 0024-9297
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ADDITIVES
COPOLYMERS
MICELLAR SYSTEMS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
RHEOLOGY
SOLVENT PROPERTIES
SURFACTANTS
VISCOSITY