| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | pH-responsive pickering foams generated by surfactant-free soft hydrogel particles |
| Autor/-in: | Wu, Dalin Mihali, Voichita Honciuc, Andrei |
| DOI: | 10.1021/acs.langmuir.8b03342 |
| Erschienen in: | Langmuir |
| Band(Heft): | 35 |
| Heft: | 1 |
| Seite(n): | 212 |
| Seiten bis: | 221 |
| Erscheinungsdatum: | 2019 |
| Verlag / Hrsg. Institution: | American Chemical Society |
| ISSN: | 0743-7463 1520-5827 |
| Sprache: | Englisch |
| Fachgebiet (DDC): | 540: Chemie |
| Zusammenfassung: | Pickering foams are foams stabilized by particles and are generally known to have good stability. A special subclass of particle-stabilized foams includes stimuli-responsive Pickering foams that can be formed or deconstructed by applying an external stimuli or changing the environmental conditions; such intelligent particles could find use in many practical applications. Here, we synthesized surfactant-free biocompatible poly[2(diethylamino)ethyl methacrylate] (PDEAEMA) hydrogel particles (HGPs) by emulsion polymerization. The morphology, structure, and surface charge of the HGPs were characterized by TEM, DLS, and the zeta potential, respectively. We have observed that the pH values of the aqueous solution have a strong influence on the formation of the Pickering foams in the presence of PDEAEMA HGPs. Namely, at pH values ≤4.0 no Pickering foams were produced, while at pH values >4.0 stable Pickering foams were formed. Moreover, the height, size and bubble size distribution of Pickering foams are strongly influenced by the pH values of aqueous solution and PDEAEMA HGPs concentration. The formed Pickering foams in basic aqueous solution can all be conveniently deconstructed by changing the pH values to below 4.0. Interestingly, the dried lamellas of the Pickering foams were constituted by either monolayers or multilayers of PDEAEMA HGPs as demonstrated by SEM. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/14582 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | Life Sciences und Facility Management |
| Organisationseinheit: | Institut für Chemie und Biotechnologie (ICBT) |
| Enthalten in den Sammlungen: | Publikationen Life Sciences und Facility Management |
Dateien zu dieser Ressource:
Es gibt keine Dateien zu dieser Ressource.
Zur Langanzeige
Wu, D., Mihali, V., & Honciuc, A. (2019). pH-responsive pickering foams generated by surfactant-free soft hydrogel particles. Langmuir, 35(1), 212–221. https://doi.org/10.1021/acs.langmuir.8b03342
Wu, D., Mihali, V. and Honciuc, A. (2019) ‘pH-responsive pickering foams generated by surfactant-free soft hydrogel particles’, Langmuir, 35(1), pp. 212–221. Available at: https://doi.org/10.1021/acs.langmuir.8b03342.
D. Wu, V. Mihali, and A. Honciuc, “pH-responsive pickering foams generated by surfactant-free soft hydrogel particles,” Langmuir, vol. 35, no. 1, pp. 212–221, 2019, doi: 10.1021/acs.langmuir.8b03342.
WU, Dalin, Voichita MIHALI und Andrei HONCIUC, 2019. pH-responsive pickering foams generated by surfactant-free soft hydrogel particles. Langmuir. 2019. Bd. 35, Nr. 1, S. 212–221. DOI 10.1021/acs.langmuir.8b03342
Wu, Dalin, Voichita Mihali, and Andrei Honciuc. 2019. “pH-Responsive Pickering Foams Generated by Surfactant-Free Soft Hydrogel Particles.” Langmuir 35 (1): 212–21. https://doi.org/10.1021/acs.langmuir.8b03342.
Wu, Dalin, et al. “pH-Responsive Pickering Foams Generated by Surfactant-Free Soft Hydrogel Particles.” Langmuir, vol. 35, no. 1, 2019, pp. 212–21, https://doi.org/10.1021/acs.langmuir.8b03342.
Alle Ressourcen in diesem Repository sind urheberrechtlich geschützt, soweit nicht anderweitig angezeigt.