Photoinitiated crosslinking of hydroxypropyl cellulose in the isotropic and liquid crystal states
Article first published online: 10 MAR 2003
Copyright © 1991 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 42, Issue 9, pages 2517–2523, 5 May 1991
How to Cite
Song, C. Q., Litt, M. H. and Manas-Zloczower, I. (1991), Photoinitiated crosslinking of hydroxypropyl cellulose in the isotropic and liquid crystal states. J. Appl. Polym. Sci., 42: 2517–2523. doi: 10.1002/app.1991.070420917
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 31 AUG 1990
- Manuscript Received: 2 JUL 1990
The influence of temperature, concentration, and shear rate on the formation of liquid crystal solutions of hydroxypropyl cellulose (HPC) in DMAc and the preservation of the structure by photoinitiated crosslinking were investigated. The rate of changes in the relaxation pattern for the characteristic band texture of HPC liquid crystals after cessation of shear is inversely proportional to the extent of the crosslinking. This shows that the liquid crystalline structure is preserved upon crosslinking. The molecular orientation of the crosslinked films as a function of mesophase organization and concentration during crosslinking was studied.