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首页> 外文期刊>Journal of Applied Polymer Science >Solution properties of ionic hydrophobically associating polyacrylarnide with an arylalkyl group
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Solution properties of ionic hydrophobically associating polyacrylarnide with an arylalkyl group

机译：离子疏水缔合聚丙烯酰胺与芳烷基的溶液性质

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Copolymers of acrylamide, 2-acrylamide-2-methylpropanesulfate (AMPS), and hydrophobic monomer N-arylalkylacrylamide (BAAM) were synthesized by free-radical micellar copolymerization. The effects of the copolymer, BAAM, AMPS, and NaCl concentrations and the pH value on the apparent viscosity of the copolymers were studied. The solution viscosities increased sharply when the copolymer concentration was higher than the critical associating concentration. The apparent viscosities of aqueous solutions of poly(N-arylalkylacrylamide-co-acrylamide-co-2-acrylamide-2-methylpropanesulfate) (PBAMS) increased with increasing BAAM and AMPS concentrations. PBAMS exhibited good salt resistance. With increasing PH, the apparent viscosities first increased and then decreased. Dilute PBAMS solutions exhibited Newtonian behavior, whereas semidilute aqueous and salt solutions exhibited shear-thickening behavior at a lower shear rate and pseudoplastic behavior at a higher rate. Upon the removal of shear, the aqueous solution viscosities recovered and became even greater than the original viscosity, but the salt solution viscosities could not recover instantaneously. The elastic properties of PBAMS solutions were more dominant than the viscous properties, and this suggested a significant buildup of a network structure. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 316-321, 2005.
机译：通过自由基胶束共聚合成了丙烯酰胺，2-丙烯酰胺-2-甲基丙烷磺酸盐（AMPS）和疏水性单体N-芳基烷基丙烯酰胺（BAAM）的共聚物。研究了共聚物，BAAM，AMPS和NaCl的浓度以及pH值对共聚物表观粘度的影响。当共聚物浓度高于临界缔合浓度时，溶液粘度急剧增加。聚（N-芳基烷基丙烯酰胺-丙烯酰胺-丙烯酰胺-2-甲基丙烯酰胺-2-甲基丙烷磺酸盐）（PBAMS）水溶液的表观粘度随BAAM和AMPS浓度的增加而增加。 PBAMS表现出良好的耐盐性。随着PH的增加，表观粘度先增加然后降低。稀PBAMS溶液表现出牛顿行为，而半稀水溶液和盐溶液表现出在较低剪切速率下的剪切增稠行为和较高速率的拟塑性行为。除去剪切力后，水溶液的粘度恢复并且甚至大于原始粘度，但是盐溶液的粘度不能立即恢复。 PBAMS解决方案的弹性特性比粘性特性更占优势，这表明网络结构显着增强。 ＆复制; 2005 Wiley Periodicals，Inc. J Appl Polym Sci 97：316-321，2005。

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