Molecular Composites Via Ion-Dipole Interactions: PPTA Anion/PEO System

摘要

Molecular composites have been made from PPTA anion and PEO via ion-dipoleinteractions. DSC data, showing a melting point depression and a single glass transition shifted to a higher temperature, indicate good miscibility of the component polymers. In the molecular composites containing the lower molecular weight PEO, which are rather brittle due to large spherulite formation, strength, stiffness and elongation at break increase upon addition of the PPTA anion. In the molecular composites containing the higher molecular weight PEO, which show large ductility, strength and stiffness also increase while elongation at break decreases (although the energy to fracture still increases).