The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT
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AuthorsSuljovrujić, Edin H.
Rogić Miladinović, Zorana
Mićić, Maja M.
Miličević, Dejan S.
Article (Accepted Version)
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The oligo(ethylene glycol) dimethacrylate (OEGDMA), one of the most commonly utilized crosslinking monomers, was used to tailor thermoresponsive POEGDMA hydrogels by varying the monomer/solvent feed ratio (from 10 to 100 wt% of monomer). For the first time, synthesis of different POEGDMA homopolymeric networks was performed by gamma radiation, and due to the expected thermoresponsiveness their temperature-dependent properties were extensively analysed. The sol-gel study was performed as the first step after radiation-induced synthesis. The swelling properties were investigated over the wide pH (2.2–9.0) and temperature (5–80 °C) range. Characterization of structure and properties was additionally conducted by SEM, DSC, FTIR, and UV–Vis spectroscopy. The results indicated that all POEGDMA hydrogels showed a high gel content, inverse thermoresponse and volume phase transition temperature (VPTT) with no respect to initial preparation. On the other hand, by altering the monomer/solvent rat...io in the prepolymerisation mixture a large diversity in the microstructure, swelling capacity and VPTT was obtained. © 2019 Elsevier Ltd
Keywords:Hydrogel / Temperature responsive / Oligo(ethylene glycol) dimethacrylate / VPTT
Source:Radiation Physics and Chemistry, 2019, 158, 37-45
- Chemical and structural designing of nanomaterials for application in medicine and tissue engineering (RS-172026)
- Functional, Functionalized and Advanced Nanomaterials (RS-45005)
- This is the peer-reviewed version of the following article: Suljovrujic, Edin, Zorana Rogic Miladinovic, Maja Micic, Denis Suljovrujic, and Dejan Milicevic. "The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT." Radiation Physics and Chemistry 158 (2019): 37-45.