<div class="csl-bib-body">
<div class="csl-entry">Hobiger, V., Zahoranova, A., Baudis, S., Liska, R., & Krajnc, P. (2021). Thiol-Ene Cross-linking of Poly(ethylene glycol) within High Internal Phase Emulsions: Degradable Hydrophilic PolyHIPEs for Controlled Drug Release. <i>Macromolecules</i>, <i>54</i>(22), 10370–10380. https://doi.org/10.1021/acs.macromol.1c01240</div>
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dc.identifier.issn
0024-9297
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/20686
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dc.description.abstract
Macroporous polymer monoliths prepared from high internal phase emulsions (HIPEs) can be found in various biomedical applications. While typically water-in-oil HIPEs are applied for polyHIPE preparation, they are not suitable for hydrophilic polyHIPE preparation. Herein, direct oil-in-water emulsions based on water-soluble poly(ethylene glycol)diacrylate or poly(ethylene glycol)dimethacrylate were developed. Furthermore, the incorporation of a hydrophilic water-miscible thiol, ethoxylated trimethylolpropane tris(3-mercaptopropionate) (ETTMP) was reported for the first time within thiol-ene polyHIPEs. Due to the transparency of the emulsions, rapid curing via photopolymerization was feasible. The average pore diameters of the resulting polyHIPEs ranged between 1.2 and 3.6 μm, and porosity of up to 90% was achieved. The water uptake of the materials reached up to 1000% by weight. Drug loading and release were demonstrated, employing salicylic acid as a model drug. Porous profile and biodegradability add to the usefulness of the material for biomedical applications.
en
dc.language.iso
en
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dc.publisher
American Chemical Society (ACS)
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dc.relation.ispartof
Macromolecules
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dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
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dc.subject
emulsions
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dc.subject
Materials
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dc.subject
Monomers
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dc.subject
porosity
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dc.subject
thiols
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dc.title
Thiol-Ene Cross-linking of Poly(ethylene glycol) within High Internal Phase Emulsions: Degradable Hydrophilic PolyHIPEs for Controlled Drug Release