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Synthesis and properties of three kinds of phenylenevinylene copolymers with dialkoxyphenylene units

✍ Scribed by Hong-Quan Xie; Guang-Hua Gao; Ji-Miao Lin; Jun-Shi Guo

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
220 KB
Volume
68
Category
Article
ISSN
0021-8995

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✦ Synopsis

Two random copolymers, poly( p-phenylenevinylene-co-2,5-didodecyloxy-pphenylenevinylene) and poly(2,5-dimethoxy-p-phenylenevinylene-co-2,5-didodecyloxy-p-phenylenevinylene), were synthesized via the chlorine precursor route followed by thermal elimination. One alternating copolymer, poly( p-phenylenevinylene-alt-2,5didodecyloxy-p-phenylenevinylene), was prepared via the Heck coupling reaction. The effects of molar ratio of monomers on yield and composition of the precursor copolymers were studied. The two precursor copolymers and the alternating copolymer were characterized by gel permeation chromatography, differential scanning calorimetry, elemental analysis, and infrared spectroscopy. The UV-visible absorption spectra and photoluminescence spectra, as well as solubility and conductivity of these copolymers, were compared.

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