物理化学学报 >> 2004, Vol. 20 >> Issue (11): 1376-1379.doi: 10.3866/PKU.WHXB20041118

研究简报 上一篇    下一篇

聚氧乙烯辛基酚醚与β-环糊精的缔合作用

杜新贞;王亚荣;吕卫华;孙延春;滕秀兰;侯经国   

  1. 西北师范大学化学系,兰州 730070
  • 收稿日期:2004-04-22 修回日期:2004-06-01 发布日期:2004-11-15
  • 通讯作者: 杜新贞 E-mail:duxz@nwnu.edu.cn

Association of Polyoxyethylene n-octylphenol Ether with β-cyclodextrin

Du Xin-Zhen;Wang Ya-Rong;Lü Wei-Hua;Sun Yan-Chun;Teng Xiu-Lan;Hou Jing-Guo   

  1. Department of Chemistry, Northwest Normal University, Lanzhou 730070
  • Received:2004-04-22 Revised:2004-06-01 Published:2004-11-15
  • Contact: Du Xin-Zhen E-mail:duxz@nwnu.edu.cn

摘要: 用聚氧乙烯辛基酚醚(OP)作荧光探针研究了OP和β-环糊精(β-CD)的相互作用.结果表明,OP分子的正辛基基团和苯基基团被包络在β-CD空腔内;用1-溴代萘(BN)分子作磷光探针进一步考察了OP与β-CD分子的缔合方式及对BN分子所产生的空间效应,OP分子的正辛基以绕曲的方式位于β-CD空腔中,因空间效应使β-CD空腔进一步包络BN的能力下降.

关键词: β-环糊精, 聚氧乙烯辛基酚醚, 非离子表面活性剂, 荧光, 磷光

Abstract: Association of polyoxyethylene n-octylphenol ether(OP) with β-cyclodextrin(β-CD) was investigated using OP as a fluorescent probe. The results show that the n-octyl with phenyl ring was entrapped into the cavity of β-CD. 1-bromo-naphthaline (BN) was further employed as a phosphorescent probe to monitor the binding site of OP and the spatial effect of OP on BN. The n-octyl chain of OP was located in the cavity of β-CD in a compressed manner. As a result, the binding strength of BN to the β-CD cavity occupied by OP decreases due to the geometric considerations.

Key words: β-cyclodextrin, Polyoxyethylene n-octylphenol ether, Nonionic surfactant, Fluorescence, Phosphorescence