Abstract
The influence of polyhedral oligomericsilsesquioxane (POSS) content on the rheological behavior, non-isothermal crystallization behavior, and on crystal morphology of the poly(vinylidene fluoride) nanocomposites prepared through melt blending were investigated in this work. Rheological analysis showed that the POSS additiondecreased viscosity as compared to pure PVDF and induced a deviation in the liquid-like behavior predict by Einstein Suspension Sphere Law. The addition of POSS into PVDF promoted chances in the crystallization behavior. The crystallization was slower in the nanocomposite with higher POSS content due to the diluent effect of POSS in this system. Small angle X-ray scattering (SAXS) patterns showed a small increasing in the lamellar region of PVDF. The amorphous region increases significantly with POSS addition. The interface between the crystalline and amorphous region remains practically unchanged.
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Acknowledgments
The authors are grateful to CNPq, Brazil for financial support (473402/2013-0) and the Brazilian Synchrotron Light Laboratory (LNLS) for the SAXS (SAXS1 beam line) analysis.
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Martins, J.N., Bianchi, O., Wanke, C.H. et al. Effects of POSS addition on Non-isothermal crystallization and morphology of PVDF. J Polym Res 22, 224 (2015). https://doi.org/10.1007/s10965-015-0871-7
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DOI: https://doi.org/10.1007/s10965-015-0871-7