Journal
MACROMOLECULAR MATERIALS AND ENGINEERING
Volume 296, Issue 2, Pages 178-184Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.201000271
Keywords
nanoparticles; nanoshells; piezoelectric; polymorphism; poly(vinylidene fluoride) (PVDF)
Funding
- Robert A. Welch Foundation [E-1551, E-1320]
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PVDF nanocomposites are prepared through solution mixing of Au-NPs or Au-NSs with PVDF. The novel optical properties of Au-NPs and -NSs are retained as confirmed from UV-Vis spectra. Analysis of resulting nanocomposites by FT-IR, XRD, and DSC shows an obvious polymorphism change from alpha- to beta-form compared to PVDF prepared under the same conditions. The beta-polymorph seems to be more prominent with higher concentration of Au-NPs (0.5%) and even more so with Au-NSs. Thermogravimetric analysis shows that both nanocomposites have better resistance toward thermal degradation. Combination of novel optical properties of Au-NPs or Au-NSs with induced ferroelectric-active beta-polymorph in PVDF can lead to new design of optical, piezoelectric devices.
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