Liquid crystalline polymer films of polymers having azobenzene mesogenic groups in cross linked network structures, process for the preparation thereof, polymers and novel monomers having azobenzene mesogens
AssigneeCouncil of Scientific and Industrial Research
InventorsMuthusamy Saminathan, Chennakkattu Krishna Sadasivan Pillai
Life of this patent
Estimating the term…
Abstract
Novel cross linked polymer films prepared from poly4-[(4-cardanylazo]benzoic acid and poly4-[(4-acryloylcardanylazo]benzoic acid are disclosed. The invention also relates to novel monomers 4-[(4-cardanylazo] benzoic acid and 4-[(4-acryloylcardanylazo] benzoic acid and polymers thereof as well processes for the preparation thereof.
Claims6
A process for the preparation of cross linked polymer films comprising dissolving a polymer selected from poly4-[(4-cardanyl)azo]benzoic acid and poly4-[(4-acryloylcardanyl)azo]benzoic acid in an organic solvent, evaporating off the solvent, raising the temperature to 150-180° C. and annealing the polymers to obtain the cross linked polymer films exhibiting liquid crystalline phase behaviour.
Dependencies are inferred from the claim text.