Electronic structure and optical properties of poly[3-(4-octylphenoxy) thiophene]: experimental and theoretical studies - Archive ouverte HAL
Article Dans Une Revue Journal of Polymer Science Part A: Polymer Chemistry Année : 2008

Electronic structure and optical properties of poly[3-(4-octylphenoxy) thiophene]: experimental and theoretical studies

Résumé

This article reports the synthesis and characterization of a new polythiophene derivative phenoxy-substituted, the poly[3-(4-octylphenoxy) thiophene] (POPOT). The oxidative polymerization was found to yield low molecular weight material, whereas a modified Grignard metathesis (GRIM) yielded polymers of high molecular weights. One- and two-dimensional NMR indicated the latter to be highly regioregular. POPOTs exhibited higher thermal stabilities than equivalent alkoxy-substituted polythiophenes and exhibited red shifts in the absorption spectra with respect to equivalent. The absorption spectra showed a red shifted λmax at 540 nm in tetrahydrofuran solutions and 580 nm in spin-coated films, with respect to poly(3-alkylthiophene)s. A further red shift of 40 nm in going from solution (540 nm) to solid states (580 nm) is correlated with results from density functional theory electronic structure calculations. © 2008 Wiley Periodicals, Inc.

Domaines

Chimie Polymères

Dates et versions

hal-01559900 , version 1 (11-07-2017)

Identifiants

Citer

F. Ouhib, A. Dkhissi, Pierre Iratcabal, Roger C. Hiorns, Abdel Khoukh, et al.. Electronic structure and optical properties of poly[3-(4-octylphenoxy) thiophene]: experimental and theoretical studies. Journal of Polymer Science Part A: Polymer Chemistry, 2008, 46 (22), pp.7505-7516. ⟨10.1002/pola.23056⟩. ⟨hal-01559900⟩
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