5 research outputs found
Thermodynamics of interaction of polyoxomolybdates with water soluble nonionic polymers
The static equilibrium isothermal sorption of dioxane, ethyl acetate, and methanol vapors by POM polyoxometalates with the structure of buckyball (Mo132, Mo72Fe30) and torus (Mo138), and also polymer-salt compositions containing POM were studied. The changes in the chemical potentials of the components and the Gibbs energy of the interaction of POMs, polymers, and compositions with low molecular weight liquids are calculated. The Gibbs energies and entropies of interaction of the components of the POM β polymer systems are estimated. The stability of the POM structure before and after sorption was investigated by IR spectroscopy. It was established that all investigated POMs exhibit the highest sorption capacity for dioxane, the lowest for ethyl acetate. Mo132 exhibits maximum affinity for sorbates, Mo72Fe30 exhibits a minimum affinity, and Mo138 occupies an intermediate position. It was established that PVP and PVA adsorb methanol in significantly larger quantities compared with compositions containing POM. The same rule is observed for PVP-POM systems in the case of dioxane. PVA practically does not absorb dioxane, but the introduction of POM in films of polyvinyl alcohol leads to the appearance of the sorption ability of the film. For all compositions a decrease in the Gibbs energy of the interaction of components and an increase in entropy were found, which can be associated with loosening and partial destruction of the crystal structure of the POM when polymer chains are introduced into it. The structure of polyoxomolybdates was found to be stable in dioxane vapors, and is also preserved in polymer-salt compositions before and after sorption.ΠΠ·ΡΡΠ΅Π½Π° ΡΡΠ°ΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠ½Π°Ρ ΠΈΠ·ΠΎΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠΎΡΠ±ΡΠΈΡ ΠΏΠ°ΡΠΎΠ² Π΄ΠΈΠΎΠΊΡΠ°Π½Π°, ΡΡΠΈΠ»Π°ΡΠ΅ΡΠ°ΡΠ° ΠΈ ΠΌΠ΅ΡΠ°Π½ΠΎΠ»Π° ΠΏΠΎΠ»ΠΈΠΎΠΊΡΠΎΠΌΠ΅ΡΠ°Π»Π»Π°ΡΠ°ΠΌΠΈ ΠΠΠ ΡΠΎ ΡΡΡΡΠΊΡΡΡΠΎΠΉ Π±ΡΠΊΠΈΠ±ΠΎΠ»Π° (Mo132, Mo72Fe30) ΠΈ ΡΠΎΡΠ° (Mo138), Π° ΡΠ°ΠΊΠΆΠ΅ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΠΎ-ΡΠΎΠ»Π΅Π²ΡΠΌΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΡΠΌΠΈ, ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠΌΠΈ ΠΠΠ. Π Π°ΡΡΡΠΈΡΠ°Π½Ρ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΠΎΠ² ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΠΈ ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΠΠΈΠ±Π±ΡΠ° Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΠΠΠΎΠ², ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠΎΠ², ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΉ Ρ Π½ΠΈΠ·ΠΊΠΎΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΡΠΌΠΈ ΠΆΠΈΠ΄ΠΊΠΎΡΡΡΠΌΠΈ. ΠΡΠ΅Π½Π΅Π½Ρ ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΠΠΈΠ±Π±ΡΠ° ΠΈ ΡΠ½ΡΡΠΎΠΏΠΈΠΈ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΡΠΈΡΡΠ΅ΠΌ ΠΠΠ β ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ. ΠΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ ΠΠ- ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π° ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΡΡΡ ΡΡΡΡΠΊΡΡΡΡ ΠΠΠ Π΄ΠΎ ΠΈ ΠΏΠΎΡΠ»Π΅ ΡΠΎΡΠ±ΡΠΈΠΈ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Π½Π°ΠΈΠ±ΠΎΠ»ΡΡΡΡ ΡΠΎΡΠ±ΡΠΈΠΎΠ½Π½ΡΡ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΡ Π²ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π½ΡΠ΅ ΠΠΠ ΠΏΡΠΎΡΠ²Π»ΡΡΡ ΠΊ Π΄ΠΈΠΎΠΊΡΠ°Π½Ρ, Π½Π°ΠΈΠΌΠ΅Π½ΡΡΡΡ β ΠΊ ΡΡΠΈΠ»Π°ΡΠ΅ΡΠ°ΡΡ. ΠΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ΅ ΡΡΠΎΠ΄ΡΡΠ²ΠΎ ΠΊ ΡΠΎΡΠ±Π°ΡΠ°ΠΌ ΠΏΡΠΎΡΠ²Π»ΡΠ΅Ρ Mo132, ΠΌΠΈΠ½ΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ΅ β Mo72Fe30, Mo138 Π·Π°Π½ΠΈΠΌΠ°Π΅Ρ ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΠΎΠ΅ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΠΠ ΠΈ ΠΠΠ‘ ΡΠΎΡΠ±ΠΈΡΡΡΡ ΠΌΠ΅ΡΠ°Π½ΠΎΠ» Π² ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎ Π±ΠΎΠ»ΡΡΠΈΡ
ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π°Ρ
ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΡΠΌΠΈ, ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠ΅ ΠΠΠ. Π’Π°ΠΊΠ°Ρ ΠΆΠ΅ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΡ Π½Π°Π±Π»ΡΠ΄Π°Π΅ΡΡΡ Π΄Π»Ρ ΡΠΈΡΡΠ΅ΠΌ ΠΠΠ β ΠΠΠ Π² ΡΠ»ΡΡΠ°Π΅ Π΄ΠΈΠΎΠΊΡΠ°Π½Π°. ΠΠΠ‘ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈ Π½Π΅ ΠΏΠΎΠ³Π»ΠΎΡΠ°Π΅Ρ Π΄ΠΈΠΎΠΊΡΠ°Π½, Π½ΠΎ Π²Π²Π΅Π΄Π΅Π½ΠΈΠ΅ ΠΠΠ Π² ΠΏΠ»Π΅Π½ΠΊΠΈ ΠΏΠΎΠ»ΠΈΠ²ΠΈΠ½ΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΏΠΈΡΡΠ° ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ Π²ΠΎΠ·Π½ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΡΠΎΡΠ±ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΠΏΠ»Π΅Π½ΠΊΠΈ. ΠΠ»Ρ Π²ΡΠ΅Ρ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΉ ΠΠΠ -ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΎ ΡΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΠ΅ ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΠΠΈΠ±Π±ΡΠ° Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΠΈ Π²ΠΎΠ·ΡΠ°ΡΡΠ°Π½ΠΈΠ΅ ΡΠ½ΡΡΠΎΠΏΠΈΠΈ, ΠΊΠΎΡΠΎΡΠΎΠ΅ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΡΠ²ΡΠ·Π½ΠΎ Ρ ΡΠ°Π·ΡΡΡ
Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΈ ΡΠ°ΡΡΠΈΡΠ½ΡΠΌ ΡΠ°Π·ΡΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ ΠΠΠ ΠΏΡΠΈ Π²Π½Π΅Π΄ΡΠ΅Π½ΠΈΠΈ Π² Π½Π΅Π΅ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΡΡ
ΡΠ΅ΠΏΠ΅ΠΉ. ΠΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΎ, ΡΡΠΎ ΡΡΡΡΠΊΡΡΡΠ° ΠΏΠΎΠ»ΠΈΠΎΠΊΡΠΎΠΌΠΎΠ»ΠΈΠ±Π΄Π°ΡΠΎΠ² ΡΡΠ°Π±ΠΈΠ»ΡΠ½Π° Π² ΠΏΠ°ΡΠ°Ρ
Π΄ΠΈΠΎΠΊΡΠ°Π½Π°, Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠΎΡ
ΡΠ°Π½ΡΠ΅ΡΡΡ Π² ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΠΎ-ΡΠΎΠ»Π΅Π²ΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΡΡ
Π΄ΠΎ ΠΈ ΠΏΠΎΡΠ»Π΅ ΡΠΎΡΠ±ΡΠΈΠΈ
Erratum to: Interaction between Dioxane and Nanocluster Polyoxomolybdates and Their Composites Containing Water-Soluble Polymers (Russian Journal of Physical Chemistry A, (2020), 94, 4, (762-771), 10.1134/S0036024420040159)
Page 766, Table 1, limiting sorption values for methanol and acetone of Mo72Fe30 should read 6 and 2, respectively: Mo72Fe30 6/β1 0.5/β0.3 2/β0.5 3.5/β4 The original article can be found online at https://doi.org/10.1134/S0036024420040159. Β© 2020, Pleiades Publishing, Ltd
Erratum to: Effect of Silver Nanoparticles on the Sorption Characteristics of La1Β βΒ xAgxMnO3Β Β±Β y (Russian Journal of Physical Chemistry A, (2018), 92, 3, (516-521), 10.1134/S0036024418030214)
The indication of affiliation of the second author should read: a The original article can be found online at https://doi.org/10.1134/S0036024418030214. Β© 2019, Pleiades Publishing, Ltd