Structure and properties of melt-processed PVDF/PMMA/polyaniline blends.

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dc.contributor.author Edmonds, Neil en
dc.contributor.author Easteal, AJ en
dc.contributor.author Cooney, Ralph en
dc.contributor.author Ray, Sudip en
dc.date.accessioned 2012-01-31T02:24:31Z en
dc.date.issued 2009 en
dc.identifier.citation Materials Chemistry and Physics 113(2-3):829-838 2009 en
dc.identifier.issn 0254-0584 en
dc.identifier.uri http://hdl.handle.net/2292/10821 en
dc.description.abstract Ternary blends composed of the matrix polymer poly(vinylidene fluoride) (PVDF) and poly(methyl methacrylate) (PMMA) with different proportions of thermally doped polyaniline (PAni) using an alkylated dopant (dodecylbenzenesulfonic acid) (DBSA) were prepared by melt mixing. The effectiveness of these blends was compared with the corresponding binary blends of PVDF or PMMA with PAni–DBSA complex. Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) measurements, thermal analysis by differential scanning calorimetry (DSC) and morphological studies by optical microscopy and scanning electron microscopy (SEM) were carried out to characterize the blends in light of the interactions between their components and on the resulting electrical conductivity. Though a notable dispersion of PAni–DBSA in the PMMA matrix was incurred along with better conductivity with respect to PVDF/PAni–DBSA and PVDF/PMMA/PAni–DBSA blends, the thin films based on PMMA/PAni–DBSA were found to be fragile in nature. However, the presence of PMMA in the ternary blends of PVDF/PMMA/PAni–DBSA provided improved dispersion of PAni–DBSA in the PVDF/PMMA host matrix as compared to PVDF/PAni–DBSA binary blends. An enhancement in the conductivity by about two orders of magnitude at >5 wt% PAni–DBSA was witnessed in the ternary blends than that of PVDF/PAni–DBSA binary blends. Thin films made of ternary blends of PVDF/PMMA/PAni–DBSA also offered superior mechanical properties and flexibility than that of PMMA/PAni–DBSA binary blends due to the contribution of PVDF in the blend. en
dc.publisher Elsevier B.V. en
dc.relation.ispartofseries Materials Chemistry and Physics en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0254-0584/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Structure and properties of melt-processed PVDF/PMMA/polyaniline blends. en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.matchemphys.2008.08.034 en
pubs.issue 2-3 en
pubs.begin-page 829 en
pubs.volume 113 en
dc.rights.holder Copyright: Elsevier B.V. en
pubs.end-page 838 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 100494 en
pubs.record-created-at-source-date 2010-09-01 en


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