T. Beltrani et al., Synthesis and electrooptic properties of side-chain methacrylate polymers containing a new azophenylbenzoxazole chromophore, J POL SC PC, 39(8), 2001, pp. 1162-1168
Citations number
17
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
The synthesis and characterization of four methacrylate copolymers obtained
by radical addition polymerization of methyl methacrylate as well as a new
methacrylate azophenylbenzoxazole chromophore in percentages of 10, 30, 50
, and 70% were explored. The copolymers were amorphous and showed glass-tra
nsition temperatures ranging from 132 to 146 degreesC. High-quality polymer
films were easily obtained by spin coating from N-methylpyrrolidone soluti
ons. Polymer films spun cast on iridium tin oxide (ITO) substrates were use
d in the electro-optic (EO) experiments to evaluate the EO coefficients r(3
3) using the reflection technique. The measured values fell in the range of
1.7-3.7 pm/V (laser incident wavelength of 1.552 mum) depending on the per
centage of chromophore in the polymer. (C) 2001 John Wiley & Sons, Inc.