Molecular Blend of Poly(ethylene oxide) (PEO) and Poly(methyl methacrylate-co- methacrylic acid) poly(MMA-co-MAA) and its Ionic Conductivity in Copper-in-Polymer Composite Film

摘要

Ionic conducting solid materials display many advantages over their liquid counterparts,for the likelihood of producing miniaturized structures using simple fabrication techniques or cells.[1] In recent years,practical application has emerged in high peak brightness polymer light-emitting diodes,[2] planar actuators,[3] working fuel cells,[4] biosensors,miniaturization of electronic and optical devices,[5] and so on. This situation has encouraged scientists to investigate polymer electrolytes for ionic conductivity purpose. Blends of two or more polymers,in general,change their original morphology if they are thermodynamic compatible through the interactions of ion,dipole,dispersion,hydrogen bonds,etc. Dieter Geschke and his coworkers[6] studied poly(N-vinylpyrrolidone) - poly(ethylene glycol) blends,and confirmed their interaction belonging hydrogen bonds. The similar investigation and outcome were obtained by Hiroshi Takenouchi based on diblock copolymer of poly(ethylene)-poly(ethylethylene) . In these [7] cases,polymer blends are thought to have a great homogeneity,and both the molecular motions will be influenced cooperatively due to strong interaction with hydrogen bonds. We can,hence,expect that the mixing of these polymers produces the excellent homogeneous polymer blends,and further in the extreme,they develop into the blends in which the macromolecules interact in molecular level each other. In this paper,we studied on the ionic conducting property in blending system of poly(ethylene glycol)(PEG) and poly(methyl methacrylate-co-methacrylic acid) and its influence on the morphological structure of copper-in-polymer composite film.