Proton-vacancy-conducting polymers based on anion-grafted ormosils synthesized via sol-gel process

摘要

Abstract: A novel basic proton conducting polymer (so-called proton-vacancy conducting polymer) has been synthesized. It is based on the copolymerization via the sol-gel process of sulfonamide-containing groups, partially deprotonated, and an internal plasticizer (POE segments). All the organic groups are attached to trialkoxysilanes which, through the hydrolysis-condensation process, lead to a silica-based backbone. The flexible films obtained are homogeneous and transparent. Maximum conductivities are observed with $APEQ 15% of the sulfonamide groups deprotonated by the organic base and $APEQ 10% of 2000 M$- w$/ POE plasticizer. The conductivity values are 2 10$+$MIN@7$/ approximately ega$+$MIN@1$/$+$MIN@cm$+$MIN@1$/ at 30$DGR@C and 10$+$MIN@5$/ approximately ega$+$MIN@1$/cm$+$MIN@1$/ at about 84$DGR@C. The polymers are thermically stable up to 220$DGR@C and their electrochemical stability range is close to 2 V. !7