M. Laus et al., LC BLOCK-COPOLYMERS CONTAINING SIDE-CHAIN AND MAIN-CHAIN BLOCKS, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 261, 1995, pp. 393-404
The synthesis and some thermal properties of a new type of block copol
ymers comprising both main-chain and side-chain liquid-crystalline (LC
) blocks in the same macromolecular structure are described. The forme
r block is a semiflexible LC polyester (block A), and the latter is a
LC polymethacrylate (block B). The two structurally different blocks w
ere at least partly phase-separated within the glassy and LC states an
d underwent distinct phase transitions. Significant deviations of the
thermodynamic parameters observed relative to those of the correspondi
ng homopolymers suggest the occurrence of a more or less diffuse inter
phase.