G. Galli et al., HYBRID LIQUID-CRYSTALLINE BLOCK-COPOLYMERS WITH POLYSTYRENE AND POLYESTER BLOCKS, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 254, 1994, pp. 429-443
The synthesis and some thermal and dynamic mechanical properties of fo
ur series of liquid-crystalline block copolymers, comprising polystyre
ne and polyester blocks, are described. Within each series, the smecti
c C-nematic and nematic-isotropic transition temperatures of the polye
ster block were constant throughout the whole composition range, and t
he enthalpies of both phase transitions were directly proportional to
the composition. The two blocks were incompatible in the glass and mel
t phases and underwent their individual phase transitions.