Water sorption and electrical/dielectric properties of organic-inorganic polymer blends |
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| Authors: | Yevgen Mamunya Athanasios Kanapitsas Polycarpos Pissis Gisele Boiteux Eugene Lebedev |
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| Affiliation: | 1. Institute of Macromolecular Chemistry, National Academy of Sciences of Ukraine, 48, Kharkovskoe shausse, 02160 Kiev, Ukraine;2. National Technical University of Athens, Department of Physics, Zografou Campus, 157 80 Athens, Greece;3. Laboratoire des Materiaux Polymeres et des Biomateriaux, UMR-CNRS 5627, Universite Claude Bernard Lyon 1, 43 Bd du 11 Novembre 1918, 69622 Villeurbanne Cedex, France |
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| Abstract: | Organic-inorganic polymer blends (OIPB) were obtained by reaction of organic and inorganic oligomers. The organic oligomer was synthesized with 2,4-toluene diisocyanate (TDI) and oligooxypropylene glycols (OPG) with various molecular weights (MW). The inorganic component was a water solution of sodium silicate. The OIPB obtained are hydrophilic and have great water sorption ability (the relative weight of sorbed water reaches 2000 %). The kinetics of water sorption and the changes of electrical conductivity during sorption were studied. Sorption ability, and mechanical, electrical and dielectric properties of OIPB depend on molecular weight of OPG: conductivity increases with increasing MW, whereas the sorption ability correlates with the mechanical properties. The influence of the inorganic phase content on the electrical and dielectric properties was studied as well. |
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| Keywords: | blends conductivity hydrophilic polymers mechanical properties water sorption |
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