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Curing of liquid crystalline epoxy resins with a biguanide

✍ Scribed by Barbara Szczepaniak; Kurt C. Frisch; Piotr Penczek; Jerzy Rejdych; Anna Winiarska

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 350 KB
Volume: 35
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19970930)35:13<2739::aid-pola19>3.0.co;2-c

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✦ Synopsis

This work extends the authors' investigations on liquid crystalline epoxy resins prepared from diglycidyl ether of 4,4 -dihydroxybiphenyl (DGE-DHBP) and aliphatic dicarboxylic compounds (ADC) or difunctional aromatic compounds. Syntheses and properties of these liquid crystalline epoxy resins are described elsewhere. In this paper a study on the curing reaction of the above mentioned liquid crystalline epoxy resins is presented. Ortho-tolylbiguanide was applied as the curing agent. The curing reactions were investigated by differential scanning calorimetry, microscopic observations and IR spectroscopy. Depending upon the temperature program of curing, it was possible to obtain polymeric networks with liquid crystalline order.

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