Preparation and properties of soluble polyphenylenes

Diheptylbenzene-1,4-bis(trimethylene boronate) was copolymerized with arylene dibromides in the presence of a palladium catalyst. Copolymers with 2,5-thienylene or 1,4-naphthylene had degree of polymerization higher than 100. Structures of the copolymers were identified by NMR spectroscopy. The copo...

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Bibliographic Details
Published in:Synthetic metals 1997, Vol.84 (1), p.263-264
Main Authors: Kaeriyama, K., Tsukahara, Y., Negoro, S., Tanigaki, N., Masuda, H.
Format: Article
Language:English
Subjects:
Applied sciences
Coupling reactions
Exact sciences and technology
nuclear magnetic resonance spectroscopy
Organic polymers
other conjugated and/or conducting polymers
photoluminescence
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:Diheptylbenzene-1,4-bis(trimethylene boronate) was copolymerized with arylene dibromides in the presence of a palladium catalyst. Copolymers with 2,5-thienylene or 1,4-naphthylene had degree of polymerization higher than 100. Structures of the copolymers were identified by NMR spectroscopy. The copolymers emitted strong fluorescence. Spectra of copolymer with anthracene showed fine structures and a Stokes shift as small as 13 nm, while those of copolymers with thiophene or naphthalene were structureless and showed large apparent Stokes shift ranging from 70 to 130 nm.
ISSN:0379-6779
1879-3290
DOI:10.1016/S0379-6779(97)80743-6