Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Natural polyesters, occurrence

The synthesis and some thermal properties of three series of block copolymers comprising both main-chain and side-chain liquid-crystalline (LC) blocks in the same macromolecular structure are described. The former block is a semiflexible LC polyester (block B), and the latter is an LC polymethacrylate (block A) containing a variously substituted mesogenic unit. The two structurally different blocks were partly phase-separated within the glassy and LC states and underwent distinct phase transitions. Significant deviations of the transition enthalpies relative to those of the corresponding homopolymers suggest the occurrence of a more or less diffuse interphase which may depend on the nature of the mesophase formed. [Pg.332]

See other pages where Natural polyesters, occurrence is mentioned: [Pg.452]    [Pg.36]    [Pg.40]    [Pg.471]    [Pg.130]    [Pg.84]    [Pg.1894]    [Pg.471]    [Pg.60]    [Pg.411]    [Pg.402]    [Pg.120]    [Pg.9]    [Pg.164]    [Pg.238]   
See also in sourсe #XX -- [ Pg.23 ]

See also in sourсe #XX -- [ Pg.23 ]



SEARCH



Natural Polyesters

Natural occurrence

© 2024 chempedia.info