物理化学学报 >> 1994, Vol. 10 >> Issue (10): 936-940.doi: 10.3866/PKU.WHXB19941015

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共聚物/表面活性剂体系微观与宏观粘度

方培基, 施燕支, 王尔钅监   

  1. 中国科学院感光化学研究所,北京 100101
  • 收稿日期:1993-05-08 修回日期:1993-10-08 发布日期:1994-10-15
  • 通讯作者: 方培基

Study on the Microscopic and Macroscopic Viscosity of Copolymer/Surfactant Systems

Fang Pei-Ji, Shi Yan-Zhi, Wang Er-Jian   

  1. Institute of Photographic Chemistry,Academia Sinica,Beijing 100101
  • Received:1993-05-08 Revised:1993-10-08 Published:1994-10-15
  • Contact: Fang Pei-Ji

关键词: 荧光探针, 粘度, 复合体

Abstract:

The interaction between water-soluble copolymer P(AM/AMPS) and various anionic surfactants, and the related changes in microscopic and macroscopic viscosity were comparatively studied by fluorescence probe and viscosimeter. The results obtained show that the associated complex is formed via the hydrophobic chain interaction at a certain concentration, along with a drastic increase in microscopic and macroscopic viscosity. The surfactants with weaker hydrophobicity, such as SDS as SLS forms a relatively loose complex and possesses a lower microscopic and macroscopic viscosity. The other surfactants having a longer hydrocarbon chain and stronger hydrophobicity, such as SBS and SK, display a more tightly packed structure and greater microscopic and macroscopic viscosity. However, as furhter surfactant SBS is added, the further intermolecular association results in change of polymer chain conformation from stretch to coiled state and simultaneously decreases in the macroscopic viscosity.

Key words: Fluorescence Probe, Viscosity, Complex