Journal ArticleDOI
Volume phase transition of N-isopropylacrylamide gels crosslinked by a crosslinker with six hands.
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TLDR
The effects of the average length of NIPA chains between two crosslinkers on the volume phase transition as well as the effects of inhomogeneity in gels caused by a low fraction of crosslinker are discussed.Abstract:
Crosslinkers play an essential role in determining the physical properties of gels. We synthesized a new type of crosslinker with three vinyl groups [trisacrylaminomethan (TRI), which joins six polymer chains per single molecule]. We found that N-isopropylacrylamide (NIPA) gels crosslinked with the new crosslinker gel at a much lower fraction of crosslinker than the gel crosslinked with popular N,N'-methylenebisacrylamide (BIS). We also found that the NIPA gels with TRI crosslinker displayed larger discrete volume changes at the volume phase transition. We discuss the effects of the average length of NIPA chains between two crosslinkers on the volume phase transition as well as the effects of inhomogeneity in gels caused by a low fraction of crosslinker.read more
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3D Printing of Tough Gels Having Tunable Elastic Modulus from the Same Pre‐Gel Solution
Takafumi Ota,Azusa Saito,Taishi Tase,Kei Sato,Masanobu Tanaka,Kazunari Yoshida,Kyuuichiro Takamatsu,Masaru Kawakami,Hidemitsu Furukawa +8 more
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Enormously Low Frictional Surface on Tough Hydrogels Simply Created by Laser-Cutting Process
Kazunari Yoshida,Hikaru Yahagi,Masato Wada,Toshiki Kameyama,Masaru Kawakami,Hidemitsu Furukawa,Adachi Koshi +6 more
TL;DR: In this article, the authors measured the friction forces and calculated the friction coefficients of nonprocessed and laser-processed surfaces of a double network hydrogel (DN gel), which is one of the more famous high-strength gels.
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Behaviors of 3D-printed objects made of thermo-responsive hydrogels: motion in flow and molecule release ability
TL;DR: In this paper, the effect of capsule shapes on behaviors of poly(N-isopropylacrylamide) (PNIPAm) gels under water flow with Reynolds number 102 was investigated.
Journal ArticleDOI
Thermal Switching Behaviors of a Hydroxypropyl-Cellulose-Based Tough Hydrogel
TL;DR: A thermo-responsive and tough hydrogel composed of hydroxypropyl cellulose (HPC) and poly(N,N-dimethylacrylamide) (PDMAAm) has been developed in this article .