Clay nanocomposites based on poly(vinylidene fluoride-co-hexafluoropropylene): Structure and properties

Antonios Kelarakis, Suren Hayrapetyan, Seema Ansari, Jason Fang, Luis Estevez, Emmanuel P. Giannelis

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Structure-properties relationships in poly(vinylidene fluoride-co-hexafluoropropylene), PVDF-HFP, clay nanocomposites are reported for the first time. Addition of organically modified clays to PVDF-HFP promotes an α to β transformation of the polymer crystals. The degree of transformation depends on the nature of the clay surface modifier and scales with the strength of the interactions between the clay and the polymer. The nanocomposites exhibit significant increases in elongation to failure compared to the neat copolymer. In addition, their dielectric permittivity is higher over a wide temperature range. Their mechanical and dielectric properties scale similar to the amount of the β phase present in the nanocomposites. © 2009 Elsevier Ltd. All rights reserved.
Original languageEnglish (US)
Pages (from-to)469-474
Number of pages6
JournalPolymer
Volume51
Issue number2
DOIs
StatePublished - Jan 2010
Externally publishedYes

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