物理化学学报 >> 1992, Vol. 8 >> Issue (03): 352 -357 .doi: 10.3866/PKU.WHXB19920313

研究论文 上一篇    下一篇

粘度法研究PAM与R12SO3Na之间的相互作用

徐桂英; 顾影慧; 曾利容; 竺和平; 毛宏志   

  1. 山东大学胶体与界面化学研究所,济南 250100
  • 收稿日期:1991-02-11 修回日期:1991-07-26 发布日期:1992-06-15
  • 通讯作者: 徐桂英

Study of the Interaction Between Polyacrylamide and Sodium Dodecyl Sulfonate by Viscosity Method

Xu Gui-Ying; Gu Ying-Hui; Zeng Li-Rong; Zhu He-Ping; Mao Hong-Zhi   

  1. Institute of Colloid and Interface Chemistry, Shandong University, Jinan 250100
  • Received:1991-02-11 Revised:1991-07-26 Published:1992-06-15
  • Contact: Xu Gui-Ying

摘要: 采用粘度法研究了纯水及含有NaCl和R_4OH(正丁醇)时, PAM(聚丙烯酰胺)与R_(12)SO_3Na(十二烷基磺酸钠)之间的相互作用。结果表明, 在所研究的范围内, PAM与R_(12)SO_3Na胶束之间能形成PAM-R_(12)SO_3Na胶束聚集体。但在纯水和NaCl溶液中, 两者之间的作用较弱。若体系中同时存在R_4OH时, 作用较强。可能是PAM分子中的—C=O —C—NH_2与混合胶束中的醇羟基以氢键相结合, 形成PAM-胶束聚集体, 所以体系的比浓粘度(ηsp/cp)随PAM浓度(cp)的降低而急剧增大, 表现出典型的聚电解质性质。

关键词: 聚丙烯酰胺(PAM), 十二烷基磺酸钠(R12SO3Na), 比浓粘度, 电粘效应

Abstract: The interaction between polyacrylamide (PAM) and sodium dodecyl sulfonate (R_(12)SO_3Na) in NaCl solution and in NaCl-R_4OH solution have been studied by viscosity measurements. The electro-viscous effect was found, that is, the reduced viscosity of PAM-R_(12)SO_3Na solution increases with the decrease of the concentration of PAM. These results are interpreted in terms of the formation of polymer-micelle aggregate formed by the binding between the PAM and the R_(12)SO_3Na micelle.

Key words: Polyacrylamide, Sodium dodecyl sulfonate, Reduced viscosity, Electro-viscous effect