Synthesis and mesogenic behavior of metal-containing liquid crystalline networks

✍ Scribed by Gangadhara; Saraswathyammal Jayanthi; Kaushal Kishore

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 805 KB
• Volume: 60
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19960509)60:6<791::aid-app1>3.0.co;2-e

✦ Synopsis

A new hydroxy functionalized liquid crystalline (LC) polyazomethine has been synthesized by the solution polycondensation of a dialdehyde with a diamine. The polymer was characterized by IR, 'H-, and I3C-NMR spectroscopy. Studies on the liquid crystalline properties reveal the nematic mesomorphic behavior. This polymer functions as a polymeric chelate and forms a three-dimensional network structure through the metal complexation. Influence of various metals and their concentration on the liquid crystalline behavior of the network has been studied. Networks up to 30 mol % of the metal show LC phase transitions; above this the transitions are suppressed and the network behaves like an LC thermoset. 0 1996 John Wiley & Sons, Inc.