Electronic applications often require polymers with extreme thermal and ultraviolet light stability. The mesogenic and photoactive moiety 4,4'-dimethyl-trans-stilbene dicarboxylate and dimethyl biphenyl-4,4'-dicarboxylate were copolymerized with various diols to investigate the effect of mesogen and spacer length on the thermal, thermomechanical, rheological, and morphological transitions. The hexanediol spacer afforded liquid crystalline copolyesters with high thermal stability. Differential scanning calorimetry and polarized optical microscopy confirmed the liquid crystalline morphology. To increase impact properties, poly(tetramethylene oxide) as a spacer was investigated; affording elastomers.

Partially aromatic high-performance polyesters for electronic applications

245th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.