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Characterization and Properties of Hybrid Nanoparticle “inactive and active” Metal Polymer Films
Author(s) -
Espuche E.,
David L.,
Afeld J.L.,
Compton J.M.,
Kranbuehl D.E.
Publication year - 2005
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200551014
Subject(s) - materials science , nanoparticle , crystallinity , polymer , chemical engineering , glass transition , dispersion (optics) , nanotechnology , composite material , physics , optics , engineering
A single stage in situ process using a precursor complex has been used to create a uniform dispersion of nanoparticles. The size and interparticle distance varies with the nature of the composition of the nanoparticle and the precursor complex‐polymer system. The process was used to create a uniform dispersion of inert, lanthanum oxide, as well as reactive, palladium and silver, nanoparticles. For all three of these low 1 percent by volume nanoparticle polymer systems significant changes occurred in a range of properties. The nanoparticles increase the glass transition, in some cases creating in addition a broader temperature range for the glass transition. They also increase the crystalline‐melting transition temperature and produce a large decrease in the per cent crystallinity in the PVDF system. The nanoparticles decrease the gas permeability by a factor of ten or more compared to the predicted result. Further, the nanoparticles made from reactive metals to certain gases displayed unique reactive characteristics with regard to selectively changing solubility and diffusivity.