Fig. 5: Supercontraction and shape-memory properties of PDMAEA-Q/PMAA hydrogel microfiber. | Nature Communications

Fig. 5: Supercontraction and shape-memory properties of PDMAEA-Q/PMAA hydrogel microfiber.

From: Aqueous spinning of robust, self-healable, and crack-resistant hydrogel microfibers enabled by hydrogen bond nanoconfinement

Fig. 5

a Glass transition temperatures (Tg) with varying DMAEA-Q:MAA molar ratios and humidities. b Tensile loading-unloading curves at RH 60% for 10 cycles (waiting time = 0 s). c Loading-unloading curves at RH 90% for two cycles (waiting time = 30 s). d Loading-unloading curves at RH 60% for 10 cycles of moisture treatments. e Repeatable fiber diameter changes in the moisture-induced supercontraction process for 10 cycles. f Load-dependent supercontraction ratios. g Demonstration of the supercontraction effect by a hydrogel microfiber web. h Shape-memory behavior of the hydrogel microfiber in the compressive mode. Source data are provided as a Source Data file.

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