P. Hesemann et A. Greiner, POLYSTYRENES MODIFIED BY SHORT ARYLENEVINYLENE SEGMENTS FOR LIGHT-EMITTING APPLICATIONS - SYNTHESIS AND STRUCTURE-PROPERTY RELATIONSHIPS, Polymers for advanced technologies, 8(1), 1997, pp. 23-29
The synthesis of 4-vinylstilbenes was accomplished by the Heck and Wit
tig reactions. Bromination of polystyrene was achieved by an iron-cata
lyzed electrophilic substitution reaction. Polymer-analogous coupling
reactions of styrenes with respect to stilbenes with poly(bromostyrene
)s was accomplished by Heck- reactions under optimized reaction condit
ions and is reported with respect to the molecular weight of the poly(
bromostyrene)s. Thermal and optical properties are discussed with resp
ect to light-emitting diode applications.