New polyacetylenes with aromatic Schiff's base pendant groups by polymerization of benzylidene-ring-substituted N-benzylidene-4-ethynylanilines with Rh-based catalysts

N‐Benzylidene‐4‐ethynylanilines, R—C6H4—CH=N—C6H4—C≡CH substituted in 4′ position by R = H, t‐Bu, F, Br, CN, NO2 and Me2N, were polymerized in tetrahydrofuran using [Rh(cod)X]2 (cod = 1,5‐cyclooctadiene; X = Cl, OCH3) as a catalyst to result in polyacetylene type polymers. Monomers with R = H, t‐Bu...

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Bibliographic Details
Published in:Macromolecular chemistry and physics 1999-12, Vol.200 (12), p.2591-2596
Main Authors: Balcar, Hynek, Sedláček, Jan, Vohlídal, Jiří, Zedník, Jiří, Blechta, Vratislav
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
Online Access:Get full text
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Summary:N‐Benzylidene‐4‐ethynylanilines, R—C6H4—CH=N—C6H4—C≡CH substituted in 4′ position by R = H, t‐Bu, F, Br, CN, NO2 and Me2N, were polymerized in tetrahydrofuran using [Rh(cod)X]2 (cod = 1,5‐cyclooctadiene; X = Cl, OCH3) as a catalyst to result in polyacetylene type polymers. Monomers with R = H, t‐Bu and F gave tetrahydrofuran‐soluble polymers of molecular weights Mw from 15 000 to 100 000; monomers with Br, CN, NO2 and Me2N as substituents gave polymers insoluble in tetrahydrofuran and other common organic solvents. The polymer structure, consisting of conjugated polyene main chain and 4‐(N‐benzylideneamino)phenyl pendant groups, was confirmed by IR, UV‐vis and NMR spectroscopy.
ISSN:1022-1352
1521-3935
DOI:10.1002/(SICI)1521-3935(19991201)200:12<2591::AID-MACP2591>3.0.CO;2-N