TL;DRAbstract
The effect of ionic groups on the properties of bulk polymers (1) has normally referred to studies on polyelectrolytes in which an ionic group is covalently attached to the polymer chain which is usually neutralized by a metallic counterion. Studies of systems consisting of neutral polymers with dissolved inorganic salts are only beginning to receive considerable attention. The results of the incorporation of ions in polymers and their effect on the glass transition temperature (Tg) has been reviewed through 1969.(2) Therefore, only the more recent and pertinent reports will be mentioned here. Large increases have been produced in the Tg of poly(propylene oxide) by dissolving LiClO4 in the polymer. (3) Crystallization adducts of poly(ethylene oxide) that have been treated with HgCl2 or CdCl2 have also been reported.(4) Solutions of Ca(NCS)2 and "Phenoxy" polymer have significantly different physical properties compared to the pure polymer. Increased water absorption, Tg and electrical
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The effect of ionic groups on the properties of bulk polymers (1) has normally referred to studies on polyelectrolytes in which an ionic group is covalently attached to the polymer chain which is usually neutralized by a metallic counterion. Studies of systems consisting of neutral polymers with dissolved inorganic salts are only beginning to receive considerable attention. The results of the incorporation of ions in polymers and their effect on the glass transition temperature (Tg) has been reviewed through 1969.(2) Therefore, only the more recent and pertinent reports will be mentioned here. Large increases have been produced in the Tg of poly(propylene oxide) by dissolving LiClO4 in the polymer. (3) Crystallization adducts of poly(ethylene oxide) that have been treated with HgCl2 or CdCl2 have also been reported.(4) Solutions of Ca(NCS)2 and "Phenoxy" polymer have significantly different physical properties compared to the pure polymer. Increased water absorption, Tg and electrical
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