Conformational characteristics of polycaproamide in dimethylacetamide containing lithium chloride |
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Authors: | L. A. Fen’ko A. V. Bil’dyukevich V. S. Soldatov |
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Affiliation: | (1) Institute of Physicoorganic Chemistry, National Academy of Sciences of Belarus, ul. Surganova 13, Minsk, 220072, Belarus |
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Abstract: | The viscosity behavior, index of refraction, and density of dilute polycaproamide solutions in DMAc containing lithium chloride have been studied. On the basis of temperature dependences of the index of refraction and the density of solutions, the θ-condition of polycaproamide solutions in DMAc containing 2.5% lithium chloride is estimated as 21.3°C. From intrinsic viscosity [η] measurements, the coefficients of swelling of a polymer coil, the mean-square distance between chain ends, and other parameters of macromolecules in solution are calculated. |
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