Miscibility of polythiophene-graft-poly (methyl methacrylate) brushes with poly (vinylidene fluoride): morphology, optical and conductivity properties

Mandal, Amit ; Nandi, Arun K. (2011) Miscibility of polythiophene-graft-poly (methyl methacrylate) brushes with poly (vinylidene fluoride): morphology, optical and conductivity properties Macromolecular Chemistry and Physics, 212 (15). pp. 1636-1647. ISSN 1022-1352

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/macp.20...

Related URL: http://dx.doi.org/10.1002/macp.201100097

Abstract

Polythiophene-graft-poly(methyl methacrylate) brushes are synthesized by ATRP. They form miscible blends with poly(vinylidene fluoride) (PVDF) due to specific interactions between the >C=O groups of PT-g-PMMA with the >CF2 groups of PVDF. PT-g-PMMA remains in the interlamellar, interfibrillar and interspherulitic regions of the PVDF crystals at both laterally and longitudinally aggregated states. In the blends both PVDF and PT-g-PMMA brushes have nanometer sizes, producing nanostructured polymer blends. The PL intensity can be tuned by varying the PT-g-PMMA concentration, and the blend exhibits good dc conductivity with a percolation threshold at 10 wt.-% PT-g-PMMA. Conductivity data indicate a conformational transition of PT-g-PMMA chains with increasing temperature.

Item Type:Article
Source:Copyright of this article belongs to John Wiley and Sons.
Keywords:Conductivity; Morphology; Nanostructured Blends; Photoluminescence; Polymer Brushes
ID Code:85300
Deposited On:02 Mar 2012 07:06
Last Modified:02 Mar 2012 07:06

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