Raman scattering;
gel electrolyte;
intermolecular interaction;
D O I:
10.1016/S0022-2860(98)00686-3
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Raman spectroscopy was applied to investigate the intermolecular interactions in multi-component gel electrolytes consisting of ethylene carbonate and propylene carbonate, (EC-PC) mixed solvent, lithium salt and PMMA polymeric matrix. It is shown that triflate anions tend to essential aggregation in the EC/PC solvent, which results in a worsening of both mechanical and conductive properties of the gel. It is also found that PMMA-based gels with low salt concentration show an obvious macroscopic phase separation, and the spectroscopic characterization of the different phases is presented. (C) 1999 Elsevier Science B.V. All rights reserved.