2024-03-29T15:34:16Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/651092022-11-17T02:08:08Zhdl_2115_20055hdl_2115_8527Phase-Separation-Induced Anomalous Stiffening, Toughening, and Self-Healing of Polyacrylamide GelsSato, KoshiroNakajima, TasukuHisamatsu, ToshiyukiNonoyama, TakayukiKurokawa, Takayuki1000020250417Gong, Jian Pingopen accessThis is the peer reviewed version of the following article: Sato, K., Nakajima, T., Hisamatsu, T., Nonoyama, T., Kurokawa, T. and Gong, J. P. (2015), Phase-Separation-Induced Anomalous Stiffening, Toughening, and Self-Healing of Polyacrylamide Gels. Adv. Mater., 27: 6990–6998, which has been published in final form at http://dx.doi.org/doi:10.1002/adma.201502967. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.phase separationpolymer gelssacrificial bondsself-healingtoughening460Novel, tough, strong, and self-healable polyacrylamide (PAAm) gels are fabricated by inducing an appropriate phase-separation structure using a poor solvent. The phase separation induces a gel-glass-like transition of the PAAm gels, providing the gels an anomalously high modulus (211 MPa), fracture stress (7.13 MPa), and fracture energy (4.16 x 10(4) J m(-2)), while keeping a high solvent content (approximate to 60 vol%).Wiley-Blackwell2015-11-18engjournal articleAMhttp://hdl.handle.net/2115/65109https://doi.org/10.1002/adma.201502967264258250935-9648Advanced Materials274369906998https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/65109/3/SI.pdfapplication/pdf613.99 KB2015-11-18https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/65109/1/ksato_advmat_compmanu-rev.pdfapplication/pdf1.48 MB2015-11-18