The influence of monomer/solvent feed ratio on POEGDMA thermoresponsive hydrogels: Radiation-induced synthesis, swelling properties and VPTT
Authorized Users Only
AuthorsSuljovrujić, Edin H.
Rogić Miladinović, Zorana
Mićić, Maja M.
Miličević, Dejan S.
Article (Published version)
© 2019 Elsevier Ltd
MetadataShow full item record
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)
- Post-print version available at: http://vinar.vin.bg.ac.rs/handle/123456789/8051