SIOC English
化学学报
高级检索

化学学报 ›› 2004, Vol. 62 ›› Issue (16): 1509-1513. 上一篇    下一篇

研究论文

分子凝胶电解质的电导率研究

孟亚斌, 杨亚江   

  1. 华中科技大学化学系, 武汉, 430074
  • 投稿日期:2003-08-16 修回日期:2004-04-27 发布日期:2014-02-17
  • 通讯作者: yjyang@mail.hust.edu.cn
  • 作者简介:杨亚江:E-mail:yjyang@mail.hust.edu.cn;Tel:027-87547141
  • 基金资助:
    国家自然科学基金(No.29974012)资助项目.

Study on the Conductivity of Molecular Gel Electrolytes

MENG Ya-Bin, YANG Ya-Jiang   

  1. Department of Chemistry, Huazhong University of Science & Technology, Wuhan 430074
  • Received:2003-08-16 Revised:2004-04-27 Published:2014-02-17

PDF

1078

被引次数

36

凝胶因子4,4'-二(硬脂酰胺基)二苯醚(BSDE)在水和非水介质(如二甲基甲酰胺、二甲基亚砜、碳酸丙烯酯等)中利用非共价键相互作用自组装成有序的三维纤维网络结构,使介质凝胶化.该凝胶被称之为分子凝胶.同样,BSDE也能使锂盐溶液凝胶化,制备一种新型分子凝胶电解质.水分子凝胶锂离子电解质的室温离子电导率达到10-1～10-2S·cm-1,碳酸丙烯酯分子凝胶锂离子电解质的室温离子电导率也能达到10-2～10-3S·cm-1.分子凝胶的离子电导率研究表明,锂盐在凝胶中的行为和其在溶液中的行为相似.在-35℃的低温下,分子凝胶的电导率与其溶液相比约低1～2个数量级.

关键词: 凝胶因子, 分子凝胶电解质, 电导率

4,4'-Bis(stearoylamino)diphenyl ether (BSDE) as a gelator self-assembled into elongated fibril aggregates by non-covalent interaction in aqueous and organic media, such as water, DMF, DMSO, propylene carbonate (PC) etc., and also their solutions containing lithium salts.These fibril aggregates are able to aggregate futher into three-dimensional networks, causing medium gelation so-called molecular gel.A novel gel electrolyte was prepared by the gelation of above solutions containing lithium salts.The ionic conductivity is in the range of 10-1～10-2 S·cm-1 for water molecular gel and 10-2～10-3 S·cm-1 for PC molecular gel at room temperature.The results indicate that the behavior of supporting electrolytes in the gels is essentially similar to that in the isotropic solution.At -35℃, the ionic conductivity of the gel is only 1～2 magnitudes lower than that of related solutions.

Key words: gelator, molecular gel electrolyte, ionic conductivity