Toughening of Polymers Utilizing Network Formation betweenthe Main and Side Chains

Abstract

Optically active cis-stereoregulated polyacetylenes substituted with amide, carbamate and hydroxy groups

adopt helical conformation with predominantly one-handed screw sense stabilized by hydrogen bonding

between the side chains. Polyphenyleneethynylenes substituted with amide groups also adopt helically folded

conformation in a similar fashion. These polymers are expected as chiral recognition, high thermal conductivity

and photoelectrically functional materials upon forming networks between the main and side chains.