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Hydrophobic microblock length effect on the interaction strength and binding capacity between a partially hydrolyzed microblock hydrophobically associating polyacrylamide terpolymer and surfactant
Author(s) -
Guo Yongjun,
Liang Yan,
Yang Xueshan,
Feng Rusen,
Song Rutong,
Zhou Jingda,
Gao Feilong
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40633
Subject(s) - copolymer , acrylamide , sodium dodecyl sulfate , conductometry , chemistry , micelle , polymer chemistry , acrylate , polyelectrolyte , intrinsic viscosity , pulmonary surfactant , ionic strength , polyacrylamide , polymer , organic chemistry , chromatography , aqueous solution , biochemistry
Poly(acrylamide/sodium acrylate/ N ‐dodecyl acrylamide)s [poly(AM/NaAA/C 12 AM)s] with different hydrophobic microblock lengths ( N H 's) were prepared by the micellar copolymerization of acrylamide and sodium acrylate with a low amount of N ‐dodecyl acrylamide (0.2 mol %), and the molecular structure was characterized by Fourier transform infrared spectroscopy, 1 H‐NMR, and static light scattering. A combination of experiments involving viscosity measurement, fluorescence, and conductometry was applied to investigate the effect of N H on the interaction strength and binding capacity between poly(AM/NaAA/C 12 AM)s and C 12 H 25 SO 4 Na [sodium dodecyl sulfate (SDS)]. The viscosity, I 3 / I 1 (the intensity ratio of the third vibrational band to the first band of pyrene molecules), and conductivity of the mixed system of copolymers with SDS all had different variation trends with the concentration of SDS. The binding capacity of the copolymers with SDS was calculated according to quantitative differences between the critical micelle concentration of the pure SDS solution and the mixed system. All of the results show that the interaction strength of SDS with the copolymers rose, and the binding capacity decreased with increasing N H . © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40633.