NEW POLAR SILANE-PEO POLYESTER COMPLEXES AS POLYMER ELECTROLYTES

Trifunctional carbosilanes containing hydroxy and cyano groups have be en synthesized in good yields and incorporated into polyether-based el ectrolytes. The new linear and cross-linked modified PEOs have been ch aracterized by DSC and conductivity measurements. The effect of silane content, the length of the PEO block, glycerol concentration, and tem perature on glass transition temperature and conductivity of lithium s alts complexes of these materials has been evaluated. The new material s showed improved conductivity (similar to 10(-5) S cm(-1)) at ambient temperatures compared with unmodified polyethers. (C) 1998 John Wiley & Sons, Inc.