Особливостi змiни з часом електричних властивостей розчинiв полiвiнiлового спирту у диметилсульфоксидi

Автор(и)

  • O. V. Khorolskyi V.G. Korolenko National Pedagogical University of Poltava
  • O. P. Rudenko V.G. Korolenko National Pedagogical University of Poltava
  • O. M. Zaymack V.G. Korolenko National Pedagogical University of Poltava

DOI:

https://doi.org/10.15407/ujpe62.03.0240

Ключові слова:

dielectric permittivity, polyvinyl alcohol solutions, dimethyl sulfoxide, thermodynamic equilibrium

Анотація

Робота присвячена дослiдженню довготривалих змiн у часi дiелектричної проникностi в частотному iнтервалi (0,5–200) кГц при температурi (290±1) К концентрованих розчинiв низькомолекулярного полiвiнiлового спирту в диметил-сульфоксидi з концентрацiями 5, 10 i 15 мас.%. Висловлено припущення, що часовiй еволюцiї дiелектричної проникностi вiдповiдає змiна надмолекулярної структури полiмерного розчину, яка має флуктуацiйну природу i пов’язана з процесом встановлення рiвноваги у розчинi полiмеру. За допомогою закону вiдповiдних станiв показана подiбнiсть кiнетики встановлення рiвноваги у системах полiвiнiловий спирт–диметилсульфоксид i глiцерин–вода. Запропонована математична модель, яка дозволила визначити характернi часи життя та осциляцiї мiкронеоднорiдностей у дослiджуваних розчинах полiвiнiлового спирту.

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Опубліковано

2018-12-16

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