Abstract
Properties of a poly(arylene ether ketone) with carboxyl side groups, copolymers containing units of this homopolymer, and their salts with different degrees of neutralization by alkali metals were studied by the methods of dynamic mechanical analysis, thermogravimetric analysis, and differential scanning calorimetry. By varying the nature of a metal atom and the degree of neutralization of carboxylic groups of a homopolymer and their content in copolymers, one may change the properties of polymers, including their ability to form ion pairs and, hence, their glass transition temperatures. For polymer salts at the 100% neutralization of carboxylic groups, the storage modulus and the glass transition temperature are shown to increase with decreasing the radius of the metal ion. The thermal stability of poly(arylene ether ketone) with carboxylic side groups and copolymers with different contents of such groups may be controlled by varying the nature and content of the introduced metal.
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Original Russian Text © G.G. Nikiforova, M.I. Buzin, V.G. Vasil’ev, M.N. Il’ina, A.N. Ryabev, V.V. Shaposhnikova, S.N. Salazkin, L.Z. Rogovina, V.S. Papkov, 2006, published in Vysokomolekulyarnye Soedineniya, Ser. A, 2006, Vol. 48, No. 1, pp. 66–73.
This work was supported by the Russian Foundation for Basic Research, project no. 03-03-32636.
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Nikiforova, G.G., Buzin, M.I., Vasil’ev, V.G. et al. Dynamic mechanical and thermal characteristics of homopolymers and copolymers containing arylene ether ketone units with carboxylic side groups and their salts. Polym. Sci. Ser. A 48, 53–59 (2006). https://doi.org/10.1134/S0965545X06010081
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DOI: https://doi.org/10.1134/S0965545X06010081