Szczegóły publikacji
Opis bibliograficzny
Grafted coatings of poly(castor seed oil-derived monomer) exhibiting unexpected thermo- and pH-responsive behavior: a new concept of the transition mechanism / Anastasiia Chebotar, Yana Shymborska, Yurij Stetsyshyn, Kamil Awsiuk, Joanna Raczkowska, Andrzej BERNASIK, Volodymyr Donchak, Andriy Kostruba, Andrzej Budkowski // Chemical Engineering Journal ; ISSN 1385-8947 . — 2025 — vol. 523 art. no. 168867, s. 1–18. — Bibliogr. s. 16–18, Abstr. — Publikacja dostępna online od: 2025-09-23
Autorzy (9)
- Chebotar Anastasiia
- Shymborska Yana
- Stetsyshyn Yurij
- Awsiuk Kamil
- Raczkowska Joanna
- AGHBernasik Andrzej
- Donchak Volodymyr
- Kostruba Andrij
- Budkowski Andrzej
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 165046 |
|---|---|
| Data dodania do BaDAP | 2026-01-08 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.cej.2025.168867 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Chemical Engineering Journal |
Abstract
Renewable polymer coatings grafted onto glass via SI-ARGET ATRP from castor seed oil-based monomers (CSM) exhibited unexpected dual temperature- and pH-dependent responses in wettability and morphology in the range of 5-45 degrees C. Homogeneous coatings (after 3 h, < 25 nm) were characterized with XPS, ToF-SIMS, AFM, ellipsometry, water contact angle CA, and the three-liquid method. The 'as-prepared' coatings (15 h of graft) revealed a temperature-dependent minimum in CA and a coincident maximum in surface roughness at 15-20 degrees C, with a U-shaped and an inverted U-shaped dependence, respectively. Temperature-induced transitions between rubbery, rubbery-flow, and viscous-flow states are postulated, with grafted chain rearrangements also reflected in the increase of the polar component of surface energy. After immersion in pH buffers, the U-shaped thermal response in the wettability of the coatings (15 h graft) is enhanced, with increased hydrophilicity, for pH 5 and 7 but destroyed for pH 3 and 9. The opposite temperature variation of surface roughness, determined for pH 7, is accompanied by pH-dependent morphological changes, observed at 20 degrees C. The pH-responsive behavior is related to the hydroxyl groups present in CSM. The polyCSM grafting coating is an excellent biobased candidate for the fabrication of biomaterials that additionally possess temperature- and pH-responsive properties.
