Premium
Luminescent Monomer and Poly(methacrylate) Containing 1,3,4‐Oxadiazole and Stilbene Units: Synthesis and Optical Properties
Author(s) -
Mikroyannidis John A.
Publication year - 2004
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200400157
Subject(s) - quantum yield , monomer , chlorobenzene , dichloromethane , luminescence , methacrylate , methyl methacrylate , photochemistry , solvent , chloroform , chemistry , photoluminescence , yield (engineering) , polymer chemistry , materials science , chromophore , polymer , organic chemistry , catalysis , optics , fluorescence , optoelectronics , metallurgy , physics
Summary: A monomer M as well as a poly(methacrylate) P carrying the same chromophore, that consists of 1,3,4‐oxadiazole and stilbene units, were efficiently synthesized. They dissolved in common organic solvents such as THF, chloroform, dichloromethane, 1,1,2,2‐tetrachloroethane and chlorobenzene. P showed a T g value of 145 °C. Both M and P were stable up to approximately 300 °C and afforded anaerobic char yield of about 40% at 800 °C. Their optical properties were comparable. They emitted intense violet‐blue light in THF solution with a PL maximum at 413 nm and a PL quantum yield of 0.29 for M and 0.73 for P . Thin films of them displayed optical band gap of 3.03 eV and blue‐light emission with a PL maximum around 440 nm. The PL curves of both samples were progressively red‐shifted with increasing the solvent polarity. The influence of the annealing on the PL emission spectrum of M and P thin films was investigated.