Highly Conducting Lithium Polyelectrolytes Based on Maleic Anhydride−Styrene Copolymers

摘要: Comblike polyelectrolytes comprising immobilized carboxylic anions and poly(oxyethylene) (OCH2CH2)n side chains of various length were obtained from the reaction appropriate lithium alcoholates with maleic anhydride−styrene alternating copolymers. These materials may be fabricated as films ambient temperature conductivity in range 10-9−10-6 S·cm-1, depending on side-chain length. The values increase by 2−3 orders magnitude after addition strong polar plasticizers such dimethyl sulfoxide propylene carbonate. A further was observed complexation BF3. On basis 13C NMR studies 7Li relaxation times carboxylates, it found that anion complexing agent reduces ion pairing more effectively than cation-solvating solvents. possible conduction mechanism solid gel is discussed.