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Advanced ordered material based on liquid crystalline azomethine diepoxide

A. MITITELU-MIJA1,2, C. N. CASCAVAL1,* , P. NAVARD3

Affiliation

  1. ”Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41A Iasi, Romania
  2. University of Nice Sophia-Antipolis, C.M.O.M., Thermokinetic Group, 06108 Nice Cedex 2, France
  3. Ecole des Mines de Paris, Centre de Mise en Forme des Matériaux, UMR CNRS/Ecole des Mines de Paris no. 7635, 06904 Sophia Antipolis, France

Abstract

A liquid crystalline thermoset (LCT) was prepared by curing a mesogenic azomethine diepoxide, N,N′-(1,4- phenylenedimethylidyne)-di-4-(2,3-epoxypropoxy) aniline (AZ-2), with 4,4′-methylene-bis-(3-chloro-2,6-diethylaniline) (MCDEA). The cross-linking reaction, the phase transition and the thermal properties of the LCT have been investigated by differential scanning calorimetry (DSC). The polarized optical microscopy (POM) reveals the formation of an ordered E smectic structure during curing. This structure has been confirmed by wide-angle-X-ray scattering (WAXS) study..

Keywords

Epoxy, Liquid crystalline thermoset, Azomethine, Curing.

Submitted at: Sept. 10, 2007
Accepted at: Nov. 16, 2007

Citation

A. MITITELU-MIJA, C. N. CASCAVAL, P. NAVARD, Advanced ordered material based on liquid crystalline azomethine diepoxide, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 11, pp. 3628-3632 (2007)