疏水缔合聚丙烯酰胺的自组装行为

doi:10.3863/j.issn.1000-2634.2006.04.019

西南石油大学学报(自然科学版) ›› 2006, Vol. 28 ›› Issue (4): 71-73.DOI: 10.3863/j.issn.1000-2634.2006.04.019

疏水缔合聚丙烯酰胺的自组装行为

韩利娟^{1, 2}叶仲斌¹陈洪¹罗平亚¹

1.“油气藏地质及开发工程”国家重点实验室西南石油大学,四川成都610500; 2.西南石油大学化学化工学院

收稿日期:2005-06-23 修回日期:1900-01-01 出版日期:2006-08-20 发布日期:2006-08-20

THE SELF-ASSEMBLY BEHAVIOR OF HYDROPHOBICALLY ASSOCIATING POLYACRYLAM IDE

HAN Li-juan YE Zhong-bin CHEN Hong et al

Southwest Petroleum University, Chengdu Sichuan 610500, China

Received:2005-06-23 Revised:1900-01-01 Online:2006-08-20 Published:2006-08-20

摘要/Abstract

摘要： 使用荧光光谱和动态光散射方法研究了疏水缔合聚丙烯酰胺(HAPAM)和聚丙烯酰胺(PAM)在水溶液中的结构和自组装行为。实验表明:HAPAM通过疏水作用,极易缔合形成聚集体,具有很低浓度的临界缔合浓度。动态光散射实验跟踪了HAPAM聚集体从小到大的生长过程,从溶液的微观结构上找到了HAPAM与PAM性能差异的根本原因。

关键词: 疏水缔合聚丙烯酰胺, 自组装, 荧光光谱, 动态光散射

Abstract: Contrasted with polyacrylamide (PAM), the self-assembly behavior andmicrostructure ofhydrophoblically associating polyacrylmide (HAPAM) in aqueous solution have been studied by means of fluorescence spectrum and dynamic light scattering methods. The experimental results show thatHAPAM can easily self-assemble to form a stock aggregate by hydrophobic driving
force in aqueous dilute solution. The critical associating concentration (CAC) ofHAPAM is very low. The dynamic variation of the apparentparticle diameterofHAPAM and PAM are observed by dynamic light scattering. At the CAC ofHAPAM, the particle ofHAPAM from small size grows into large size, but PAM does not show this phenomenon at the same polymer concentration. This shows that self-assembly in aqueous solution is the unique behavior ofHAPAM.

Key words: wordshydrophobically associating polyacrylamide, self-assembly, fluorescence spectrum, dynamic light scat

中图分类号:

TE357. 431

韩利娟; 叶仲斌陈洪罗平亚. 疏水缔合聚丙烯酰胺的自组装行为[J]. 西南石油大学学报(自然科学版), 2006, 28(4): 71-73.

HAN Li-juan YE Zhong-bin CHEN Hong et al. THE SELF-ASSEMBLY BEHAVIOR OF HYDROPHOBICALLY ASSOCIATING POLYACRYLAM IDE[J]. 西南石油大学学报(自然科学版), 2006, 28(4): 71-73.

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疏水缔合聚丙烯酰胺的自组装行为

THE SELF-ASSEMBLY BEHAVIOR OF HYDROPHOBICALLY ASSOCIATING POLYACRYLAM IDE

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