西南石油大学学报(自然科学版) ›› 2002, Vol. 24 ›› Issue (6): 50- 52.DOI: 10.3863/j.issn.1000-2634.2002.06.015

• 油气化学工程与化工 • 上一篇    下一篇

荧光探针对HAWSP 的聚集数的测定

陈洪1 徐鹏1 韩利娟1 罗平亚2   

  1. 1. 西南石油学院化学化工学院, 四川南充637001 ; 2. 西南石油学院
  • 收稿日期:2002-03-28 修回日期:1900-01-01 出版日期:2002-12-20 发布日期:2002-12-20
  • 通讯作者: 陈洪

DETERMINATION OF HYDROPHOBIC GROUP AGGREGATION NUMBER IN HYDROPHOBICALLY ASSOCIATING WATER2SOLUBLE POLYMER BY FLUORESCENT SPECTRUM METHOD

CHEN Hong XU Peng HAN Li-Juan LUO Ping-ya   

  1. Southwest Petroleum Institute , Nanchong Sichuan 637001 , China
  • Received:2002-03-28 Revised:1900-01-01 Online:2002-12-20 Published:2002-12-20
  • Contact: CHEN Hong

摘要: 使用芘作为荧光探针,在三条理想化假设基础上,测定了疏水缔合水溶性聚合物(丙烯酰胺2丙烯酸钠2十八烷基二甲基烯丙基氯化铵共聚物与丙烯酰胺2丙烯酸钠2十六烷基二甲基烯丙基氯化铵共聚物) 在水溶液中的疏水微区基团聚集数。结果发现,疏水侧链上的碳原子数目是影响聚集数的一个重要因素。

关键词: 荧光探针, 疏水缔合聚合物, 疏水微区, 聚集数

Abstract: Aggregation number of hydrophobically associating water soluble polymer (HAWSP) in the hydrophobic domain has been examined using fluorescence probe as a function of the carbon numbers of the hydrophobic groups. The HAWSP was obtained by coOpolymerization of acrylamide , sodium acrylate and octadecyl dimethyl allyl ammonium chloride in laboratory. Both
monomer and excimer emission are observed. Three ideal assumptions are applied to simplify the calculation. The polymer concentration corresponding to the maximum of the Ie/ Im is obtained , so the aggregation number of HAWSP can be calculated. Results show that the aggregation number is in proportion to the carbon numbers of hydrophobic groups.

Key words: fluorescent probe, hydrophobic associating polymer, hydrophobic domain, aggregation number

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