HYBRID LIQUID-CRYSTALLINE BLOCK-COPOLYMERS WITH POLYSTYRENE AND POLYESTER BLOCKS

Authors
GALLI G CHIELLINI E LAUS M ANGELONI AS BIGNOZZI MC FRANCESCANGELI O
Citation
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
Citations number
22
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
254
Year of publication
1994
Pages
429 - 443
Database
ISI
SICI code
1058-725X(1994)254:<429:HLBWPA>2.0.ZU;2-#
Abstract
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.