Фазовий перехід і утворення мікрогелів у полімерних розчинах з іонами солей
The features of the phase transition in dilute polymer solutions leading to the formation of a new phase, which is a swollen polymer mesh, have been considered. It is shown that, under certain conditions, only small clusters, microgels, of the new phase are formed and precipitate. A formula for the...
Saved in:
| Date: | 2025 |
|---|---|
| Main Authors: | , , |
| Format: | Article |
| Language: | English Ukrainian |
| Published: |
Publishing house "Academperiodika"
2025
|
| Subjects: | |
| Online Access: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2023573 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Ukrainian Journal of Physics |
Institution
Ukrainian Journal of Physics| Summary: | The features of the phase transition in dilute polymer solutions leading to the formation of a new phase, which is a swollen polymer mesh, have been considered. It is shown that, under certain conditions, only small clusters, microgels, of the new phase are formed and precipitate. A formula for the time dependence of the average microgel radius is derived. Using the method of dynamic light scattering, the time dependences of the cluster size in dilute aqueous solutions of hydroxypropyl cellulose with NaF, NaCl, NaBr, and NaI salt ions are obtained. The experimental results are compared with the derived formula. |
|---|