UV-CURED POLYMER DISPERSED LIQUID CRYSTALS WITH NANOSIZED DROPLETS

Autor:	Mustapha Benmouna, V. Rachet, Ulrich Maschke, Xavier Coqueret, P. Feneyrou, Tewfik Bouchaour, P. Le Barny
Rok vydání:	2004
Předmět:	chemistry.chemical_classification Materials science General Chemistry Polymer Condensed Matter Physics chemistry.chemical_compound Wavelength Monomer chemistry Chemical engineering Liquid crystal UV curing Organic chemistry General Materials Science Selectivity Photoinitiator Curing (chemistry)
Zdroj:	Molecular Crystals and Liquid Crystals. 413:29-34
ISSN:	1563-5287 1542-1406
DOI:	10.1080/15421400490432524
Popis:	The spectral selectivity of the light transmitted by Polymer Dispersed Liquid Crystal films with nanosized liquid crystalline droplets is investigated. We focus on the impact of the method of preparation on the optical transmission versus wavelength. Materials elaborated from selected mixtures of resin A* and the liquid crystal E7 are considered. A UV-vis spectrophotometer is used to evaluate the spectral transmission of light of the fabricated films in the range of wavelengths from 200 to 1100 nm. Spectral responses are examined in terms of the curing conditions of the initial monomer/liquid crystal/photoinitiator mixtures. The concentrations of photoinitiator and liquid crystal were changed in order to find the best conditions to obtain nanosized droplets within the polymer matrix. The salient features of the method of preparation adopted to obtain PDLC films with nanosized droplets and controlled distribution are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::20d373c8f49afc417d57784552bd7eb3 https://doi.org/10.1080/15421400490432524 Zobrazit plný text záznamu