Thermodynamics of the interaction between tetrazole-containing polyelectrolytes and water

V. N. Kizhnyaev, O. P. Gorkovenko, A. P. Safronov, L. V. Adamova

Результат исследований: Вклад в журналСтатьяНаучно-исследовательскаярецензирование

Аннотация

Thermodynamics of the interaction between tetrazole-containing polyelectrolytes and water was studied at 298 K. The Gibbs free energies, enthalpies, and entropies of mixing are negative for the dissolution and swelling of poly(C-vinyltetrazoles) in water. For un-ionized polyacids the plots of the enthalpies of dilution (mixing) for un-ionized polyacids versus the composition of polymer-water system exhibit additional extrema at a water content 10-20%. This fact is explained by the ''ordering'' and the ''disorderings'' effects of water. The affinity of poly(C-vinyltetrazoles) to water is significantly enhanced on ionization of the polymers considered. The changes in the thermodynamic parameters of polymer dissolution depend on the conformational state of macromolecules, which is determined by their hydrophilic-hydrophobic balance.

Язык оригиналаРусский
Страницы (с-по)527-532
Число страниц6
ЖурналVysokomolekulyarnye soedineniya Seriya A & Seriya B
Том39
Номер выпуска3
СостояниеОпубликовано - мар 1997

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abstract = "Thermodynamics of the interaction between tetrazole-containing polyelectrolytes and water was studied at 298 K. The Gibbs free energies, enthalpies, and entropies of mixing are negative for the dissolution and swelling of poly(C-vinyltetrazoles) in water. For un-ionized polyacids the plots of the enthalpies of dilution (mixing) for un-ionized polyacids versus the composition of polymer-water system exhibit additional extrema at a water content 10-20{\%}. This fact is explained by the ''ordering'' and the ''disorderings'' effects of water. The affinity of poly(C-vinyltetrazoles) to water is significantly enhanced on ionization of the polymers considered. The changes in the thermodynamic parameters of polymer dissolution depend on the conformational state of macromolecules, which is determined by their hydrophilic-hydrophobic balance.",
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Thermodynamics of the interaction between tetrazole-containing polyelectrolytes and water. / Kizhnyaev, V. N.; Gorkovenko, O. P.; Safronov, A. P.; Adamova, L. V.

В: Vysokomolekulyarnye soedineniya Seriya A & Seriya B, Том 39, № 3, 03.1997, стр. 527-532.

Результат исследований: Вклад в журналСтатьяНаучно-исследовательскаярецензирование

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T1 - Thermodynamics of the interaction between tetrazole-containing polyelectrolytes and water

AU - Kizhnyaev, V. N.

AU - Gorkovenko, O. P.

AU - Safronov, A. P.

AU - Adamova, L. V.

PY - 1997/3

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N2 - Thermodynamics of the interaction between tetrazole-containing polyelectrolytes and water was studied at 298 K. The Gibbs free energies, enthalpies, and entropies of mixing are negative for the dissolution and swelling of poly(C-vinyltetrazoles) in water. For un-ionized polyacids the plots of the enthalpies of dilution (mixing) for un-ionized polyacids versus the composition of polymer-water system exhibit additional extrema at a water content 10-20%. This fact is explained by the ''ordering'' and the ''disorderings'' effects of water. The affinity of poly(C-vinyltetrazoles) to water is significantly enhanced on ionization of the polymers considered. The changes in the thermodynamic parameters of polymer dissolution depend on the conformational state of macromolecules, which is determined by their hydrophilic-hydrophobic balance.

AB - Thermodynamics of the interaction between tetrazole-containing polyelectrolytes and water was studied at 298 K. The Gibbs free energies, enthalpies, and entropies of mixing are negative for the dissolution and swelling of poly(C-vinyltetrazoles) in water. For un-ionized polyacids the plots of the enthalpies of dilution (mixing) for un-ionized polyacids versus the composition of polymer-water system exhibit additional extrema at a water content 10-20%. This fact is explained by the ''ordering'' and the ''disorderings'' effects of water. The affinity of poly(C-vinyltetrazoles) to water is significantly enhanced on ionization of the polymers considered. The changes in the thermodynamic parameters of polymer dissolution depend on the conformational state of macromolecules, which is determined by their hydrophilic-hydrophobic balance.

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