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Novel full-Interpenetrating Polymer Network Hydrogel with High Mechanical Strength using Graphene Oxide
Paper ID : 2038-UFGNSM13-FULL
Authors:
Malihe Kheirabadi *1, Reza Bagheri2, Kourosh Kabiri3, Ali Pourjavadi4, Effat Jokar5
1Institute for Nanoscience and Nanotechnology, Khodro Building, Sharif University of Technology, Azadi Avenue, Tehran, Iran
2bPolymeric Materials Research Group, Department of Materials Science and Engineering, Sharif University of Technology, PO Box 11155-9466, Tehran, Iran
3Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965-115, Tehran, Iran
4Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Azadi Avenue, Tehran, Iran
5Institute for Nanoscience and Nanotechnology, Sharif University of Technology, P.O. Box 11155-89694, Tehran, Iran
Abstract:
Full-IPN nanocomposite hydrogels based on 2-acrylamido-2- methylpropane sulfonic acid (AMPS)/ acrylic acid (AA) were synthesized through a facile solution polymerization in an aqueous media by employing graphene oxide (GO) nanosheets. GO nanosheets were prepared via a modified Hummer’s method and characterized by AFM, XRD and FT-IR. Full-IPN structure was obtained in two sequential steps. These hydrogels were crosslinked using a long chain polymer, polyethylene glycol dimethacrylate (PEGDMA), and initiated with ammonium persulfate (APS). The effect of GO content on chemical structure of IPN nanocomposite hydrogels were studied by means of FT-IR, XRD. Results of this study indicated that GO nanosheets were uniformly dispersed in polymer matrix and had some interactions with hydrogel network due to their hydrophilic nature. Tensile strength and Young’s modulus of IPN hydrogels were significantly improved by incorporation of GO sheets. However, IPN nanocomposites showed the lowest elongation to failure.
Keywords:
Full-interpenetrating polymer network, Nanocomposite hydrogel, Graphene oxide nanosheets
Status : Paper Accepted (Poster Presentation)