Novel Liquid Crystalline Epoxides Containing Azomethine Mesogen

Lu M; Kim S; Shim M

Korea Polymer Journal, Vol.7, No.5, 304-309, October, 1999

This article describes the synthesis and characterization of new liquid crystalline thermosets with side group or a flexible spacer. Nematic diepoxides based on a triaromatic azomethine mesogen are obtained and cured with different amines. The formation of liquid crystalline phases depends on the structure of epoxide, curing agent and curing conditions. The smectic organization appeared when the epoxides cured with sulphanilamide within some time range. The crosslinking helps to retain a uniform spacing and aids formation of the smectic arrangement.

[References]

Yang HH, Aromatic High-Strength Fibers, Wiley-Interscience, New York (1989)
Yang CJ, Jenekhe SA, Macromolecules, 28(4), 1180 (1995)
Sek D, Eur. Polym. J., 20, 923 (1984)
Cerrada P, Oriol L, Pinol M, Serrano JL, J. Polym. Sci. A: Polym. Chem., 34(13), 2603 (1996)
Huynh-Ba G, Cluff EF, Polymeric Liquid Crystals, A. Blumstein, Ed., Plenum Press, NY (1985)
Brehmer M, Zentel R, Mol. Cryst. Liq. Cryst., 243, 353 (1994)
Warner M, Gelling KP, Vilgis TA, J. Chem. Phys., 88, 4008 (1988)
Lu MG, Shim MJ, Kim SW, Macromol. Chem. Phys., in press
Lu MG, Shim MJ, Kim SW, Acta Polym., submitted
Li CH, Chang TC, Eur. Polym. J., 27, 35 (1991)
Mormannn W, Brocher M, Macromol. Chem. Phys., 199, 853 (1998)
Lu M, Kim S, J. Appl. Polym. Sci., 71(14), 2401 (1999)
Mormann W, Zimmermann JG, Macromolecules, 29(4), 1105 (1996)
Collings PJ, Hird M, Introduction to Liquid Crystals, Chemistry and Physics, Taylor & Francis (1997)
Lu MG, Shim MJ, Kim SW, Thermochim. Acta, 323(1-2), 37 (1998)
Lin QH, Yee AF, Sue HJ, Earls JD, Hefner RE, J. Polym. Sci. B: Polym. Phys., 35(14), 2363 (1997)
Shimamura K, Macromol. Chem. Rapid Commun., 4, 107 (1983)

[Referenced By]

[1] Yang HH, Aromatic High-Strength Fibers, Wiley-Interscience, New York (1989)

[2] Yang CJ, Jenekhe SA, Macromolecules, 28(4), 1180 (1995)

[3] Sek D, Eur. Polym. J., 20, 923 (1984)

[4] Cerrada P, Oriol L, Pinol M, Serrano JL, J. Polym. Sci. A: Polym. Chem., 34(13), 2603 (1996)

[5] Huynh-Ba G, Cluff EF, Polymeric Liquid Crystals, A. Blumstein, Ed., Plenum Press, NY (1985)

[6] Brehmer M, Zentel R, Mol. Cryst. Liq. Cryst., 243, 353 (1994)

[7] Warner M, Gelling KP, Vilgis TA, J. Chem. Phys., 88, 4008 (1988)

[8] Lu MG, Shim MJ, Kim SW, Macromol. Chem. Phys., in press

[9] Lu MG, Shim MJ, Kim SW, Acta Polym., submitted

[10] Li CH, Chang TC, Eur. Polym. J., 27, 35 (1991)

[11] Mormannn W, Brocher M, Macromol. Chem. Phys., 199, 853 (1998)

[12] Lu M, Kim S, J. Appl. Polym. Sci., 71(14), 2401 (1999)

[13] Mormann W, Zimmermann JG, Macromolecules, 29(4), 1105 (1996)

[14] Collings PJ, Hird M, Introduction to Liquid Crystals, Chemistry and Physics, Taylor & Francis (1997)

[15] Lu MG, Shim MJ, Kim SW, Thermochim. Acta, 323(1-2), 37 (1998)

[16] Lin QH, Yee AF, Sue HJ, Earls JD, Hefner RE, J. Polym. Sci. B: Polym. Phys., 35(14), 2363 (1997)

[17] Shimamura K, Macromol. Chem. Rapid Commun., 4, 107 (1983)