Polystyrenes modified by short arylenevinylene segments for light-emitting applications: Synthesis and structure-property relationships

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Hesemann, Peter ; Greiner, Andreas:
Polystyrenes modified by short arylenevinylene segments for light-emitting applications: Synthesis and structure-property relationships.
In: Polymers for Advanced Technologies. Bd. 8 (1997) Heft 1 . - S. 23-29.
ISSN 1099-1581
DOI: https://doi.org/10.1002/(SICI)1099-1581(199701)8:1<23::AID-PAT607>3.0.CO;2-W

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Abstract

The synthesis of 4-vinylstilbenes was accomplished by the Heck and Wittig reactions. Bromination of polystyrene was achieved by an iron-catalyzed 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 conditions and is reported with respect to the molecular weight of the poly(bromostyrene)s. Thermal and optical properties are discussed with respect to light-emitting diode applications.