Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-25T15:28:00.351Z Has data issue: false hasContentIssue false

The Processing of LC Thermosets in Orienting External Fields

Published online by Cambridge University Press:  10 February 2011

Hilmar Körner
Affiliation:
Department of Materials Science & Engineering Cornell University, Ithaca, NY 14853, USA
Atsushi Shiota
Affiliation:
Department of Materials Science & Engineering Cornell University, Ithaca, NY 14853, USA
Christopher K. Ober
Affiliation:
Department of Materials Science & Engineering Cornell University, Ithaca, NY 14853, USA
Get access

Extract

Liquid crystals may possess macroscopically aligned structural, electrical and optical properties when oriented in external fields which leads to a wide range of applications including optical filters, displays, and data storage devices. Combining the properties of thermosets [1, 2] with the properties of liquid crystals (LC) is a logical step towards creating new materials. The development of liquid crystalline thermosets (LCT) has been motivated by their potential use in structural applications and the need for more adaptable polymeric materials with tunable strength and stiffness as well as tailored mechanical anisotropy. It is known that mechanical properties of conventional thermosets are determined by many factors including curing agent, filler, degree of cure, crosslink density, glass transition temperature, and accelerator. In LCT's all of these factors will ultimately be controlled by the both the molecular organization and orientation of the LC phase.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Barclay, G. G., Ober, C. K., Progress in Polymer Science 18, 899 (1993)Google Scholar
2. Mormann, W., Zimmermann, J. G., Macromolecules, 29 (4), 1105–9 (1996).Google Scholar
3. Wang, D.W., Papathomas, K.I.; IEEE Trans. Comp., Hybrids Manuf. Technol., 2, 780784 (1993)Google Scholar
4. Ou, J. C., Hong, Y. L., Yen, F. S., Hong, J. L., J. Polym. Sci., Polym. Chem. Ed. 33, 313 (1995)Google Scholar
5. Carfagna, C., Amendola, E., Giamberim, M., Filippov, A. G., Makromol. Chem. Phys. 195, 279 (1994)Google Scholar
6. Barclay, G. G., Ober, C.K., Papathomas, K. and Wang, D., Macromolecules, 25, 2947 (1992)Google Scholar
7. Chemistry and Technology of Cyanate Ester Resins, Hammerton, I. Ed, Chapman and Hall, N. Y., 1994. M. Bauer, J. Bauer, in Chemistry and Technology of Cyanate Ester Resins, I. Hammerton Ed, Chapman and Hall, N. Y, (1994), p. 58–85Google Scholar
8. Pascault, J.P., Galy, J., Mechin, F., in “Chemistry and Technology of Cyanate Ester Resins” Hammerton, I. Ed, Chapman and Hall, N. Y. (1994), p.112149 Google Scholar