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A study of the structure-mesomorphism relationship in some polymers and low-molecular-weight model compounds

✍ Scribed by Joaquin Barbera; Enrique Melendez; Fernando Navarro; Jose L. Serrano

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
811 KB
Volume
26
Category
Article
ISSN
0014-3057

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✦ Synopsis

A~tract--Five main-chain polymers containing benzene rings and conjugated double bonds in their structure and five low-molecular-weight model compounds analogous to the polymers were prepared; their phase behaviour was studied by optical microscopy, DSC and MNDO semi-empirical calculations. The effect of structural changes on mesomorphic behaviour was studied. Molecule linearity and electronic conjugation proved to have a determining influence on the existence of mesomorphism and on the phase transition temperatures.

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