Crystallinity of Hybrid Nanozeolite-Poly(ethylene oxide) Composites

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Abstract
New materials that contain both organic and inorganic components have potentially new chemical and physical properties that can even lie outside those bracketed by their constituents. A series of hybrid polymer-inorganic nanocomposite materials was synthesized using various poly(ethylene oxide), LiCF3SO3, and zeolite mixtures. The series included mixtures of SiO2, PEO-LiX, and PEO-GLYLiX, of varying concentrations (where GLY 1/4 3-glycidoxypropyltrimethoxysi-lane, LiX is lithiated faujasite zeolite, and the Li+ source was LiCF3SO3; for all the LiCF3SO3-containing samples, the PEO oxygen: lithium mole ratio was 12: 1). Their degrees of crystallinity and glass transition temperatures relative to pure semicrystal-line PEO were found to be reduced on the addition of the inorganic components.