Thermal and Optical Characterization of Polymer-Dispersed Liquid Crystals
Joint Authors
Shanks, Robert A.
Staszczyk, Daniel
Source
International Journal of Polymer Science
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-04-22
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Liquid crystals are compounds that display order in the liquid state above the melting temperature and below the mesogenic isotropic temperature.
Polymer-dispersed liquid crystals (PDLCs) are composite materials in which liquid crystalline material is dispersed within a polymer matrix to form micron-sized droplets.
The aim was to prepare several cholesteryl esters or alkoxybenzoic acid PDLCs and characterise thermal and optical properties.
Differential scanning calorimetry and polarized optical microscopy were employed.
The matrix polymer was a one-component UV-curable epoxy-acrylate resin.
PDLCs were formed through entropy controlled phase separation resulting from UV-initiated crosslinking.
The liquid crystals, both as mesogenic moieties and as dispersed droplets, exhibited various textures according to their molecular order and orientation.
These textures formed in constrained regions separated by phase boundaries that occurred at temperatures characteristic of each liquid crystal used.
The PDLC phase transitions occurred at temperatures lower than those exhibited by the mesogenic components in the neat state.
American Psychological Association (APA)
Shanks, Robert A.& Staszczyk, Daniel. 2012. Thermal and Optical Characterization of Polymer-Dispersed Liquid Crystals. International Journal of Polymer Science،Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-497165
Modern Language Association (MLA)
Shanks, Robert A.& Staszczyk, Daniel. Thermal and Optical Characterization of Polymer-Dispersed Liquid Crystals. International Journal of Polymer Science No. 2012 (2012), pp.1-13.
https://search.emarefa.net/detail/BIM-497165
American Medical Association (AMA)
Shanks, Robert A.& Staszczyk, Daniel. Thermal and Optical Characterization of Polymer-Dispersed Liquid Crystals. International Journal of Polymer Science. 2012. Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-497165
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-497165