Nonadditive phenomena during polyaniline synthesis in the presence of mixtures of rigid-chain and flexible-chain polymer sulfoacids and their effect on properties of obtained interpolymer complexesстатья

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[1] Nonadditive phenomena during polyaniline synthesis in the presence of mixtures of rigid-chain and flexible-chain polymer sulfoacids and their effect on properties of obtained interpolymer complexes / O. L. Gribkova, A. A. Nekrasov, V. F. Ivanov et al. // Protection of Metals and Physical Chemistry of Surfaces. — 2011. — Vol. 47, no. 4. — P. 503–511. The matrix polymerization of aniline in the presence of mixtures of rigid chain and flexible chain polymer sulfoacids was investigated in the work. The optical, electric, and spectroelectrochemical properties of the forming interpolymer complexes of polyaniline, as well as their morphology, were studied. The dominating influence of rigid chain polyacid on the process of formation of the interpolymer complexes of polyaniline even in the case of application of the mixture with the prevailing content of the flexible chain polyacid was detected. The nonadditive dependence character of the viscosity of the mixtures of polyacid solutions, the duration of the induction period of aniline polymerization, and the optical absorbance and conductivity of the obtained complexes of polyaniline relative to polyacid ratios in the mixture was shown. The presence of the intermolecular interaction in the mixtures of polymer sulfoacids was shown via viscometry method, which may be the reason for the nonadditivity of the observed phenomena. [ DOI ]

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