Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (4): 20250381.doi: 10.7503/cjcu20250381
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ZHANG Yangdaiyi, SHAO Yan, JIANG Shimei(
)
Received:2025-12-16
Online:2026-04-10
Published:2026-03-10
Contact:
JIANG Shimei
E-mail:smjiang@jlu.edu.cn
Supported by:CLC Number:
TrendMD:
ZHANG Yangdaiyi, SHAO Yan, JIANG Shimei. Multi-responsive Hydrogel Featuring Synergistic Regulation of AIE and Mechanical Behaviors via Dynamic Hydrogen Bonding Network[J]. Chem. J. Chinese Universities, 2026, 47(4): 20250381.
Fig.1 Stress⁃strain curves(A) and fluorescence spectra(B) of hydrogel and organogel, FTIR spectra(C, D) of PVI hydrogel, PMAAC hydrogel, P(VI⁃co⁃MAAC) hydrogel and P(VI⁃co⁃MAAC⁃NE) hydrogel, photographs of swelling behavior and fluorescence change(E) of P(VI⁃co⁃MAAC⁃NE) hydrogel in DMSO and water under natural light and UV light after reaching equilibrium, along with a schematic illus⁃tration of the internal structural change(the length of each grid is 0.5 cm)
Fig.2 Swelling ratio(A), stress⁃strain curves(B) and corresponding Young’s modulus(E), breaking strain(εb), and tensile breaking stress(σb)(C) of P(VI⁃co⁃MAAC⁃NE) hydrogel at different pH values, and schematic illustration of hydrogen⁃bonding changes in P(VI⁃co⁃MAAC⁃NE) hydrogel under different pH conditions(D)
Fig.3 Fluorescence spectra(A, B) of P(VI⁃co⁃MAAC⁃NE) hydrogel measured under different pH conditions, and schematic illustration of the structural changes(C) of the hydrogel in strongly acidic(pH≤2) and strongly alkaline(pH≥11) environments
Fig.4 Stress⁃strain curves(A) and corresponding E, εb, and σb(B) of the hydrogel measured at different temperatures(tensile rate: 100 mm/min), temperature⁃sweep rheological curve from 30 ℃ to 90 ℃(frequency: 1 Hz, strain: 0.05%)(C), DSC thermogram obtained at a heating rate of 5 ℃/min(D), shape⁃memory behavior of a strip⁃shaped P(VI⁃co⁃MAAC⁃NE) hydrogel observed under UV light(the scale bar is 1 cm)(E), and schematic of the proposed shape⁃memory mechanism during heating and cooling(F)
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