Thiophene based hyperbranched polymers with tunable branching using direct arylation methods

文献情報

出版日 2013-04-15

DOI 10.1039/C3PY00412K

インパクトファクター 5.582

著者

Forrest E. Michael

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要旨

An efficient one-pot synthesis of branched poly(3-alkylthiophene)s (b-P3ATs) is achieved via a dehydrohalogenative polycondensation reaction. The structures of the b-P3ATs are assigned based on 1H NMR spectra by comparing them to a model dendritic polymer and oligo(3-hexylthiophene-2,4-diyl). The palladium-catalyzed dehydrohalogenative polycondensation of 2-bromo-3-alkylthiophenes was found to provide P3AT with tunable degree of branching (DB = 0–0.42) and high molecular weights. Viscosity measurements of the different b-P3ATs indicate that they display a more globular morphology compared to regiorandom P3AT and regioregular P3AT in solution, thereby confirming the branched structure.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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Thiophene based hyperbranched polymers with tunable branching using direct arylation methods

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