A facile method to fabricate tough hydrogel with ultra‐wide adjustable stiffness, stress, and fast recoverability

ABSTRACT In this article, we report a synergistic strategy to develop dual physically cross‐linked tough hydrogels via one‐pot bulk copolymerization of N‐vinyl‐2‐pyrrolidone, acrylic acid, and stearyl methylacrylate (SMA) without any adscititious surfactant. Due to synergic effects of hydrogen bondi...

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Published in:Journal of polymer science. Part B, Polymer physics Polymer physics, 2018-11, Vol.56 (21), p.1469-1474
Main Authors: Xiang, Shuangfei, Li, Ting, Dong, Weifu, Lu, Qinghua
Format: Article
Language:English
Subjects:
Acrylic acid
Copolymerization
Hydrogels
Hydrogen bonding
hydrogen bonds
hydrophobic association
mechanical properties
Modulus of elasticity
Phase separation
Phase transitions
Recoverability
Scanning electron microscopy
Stiffness
Tensile stress
tough hydrogels
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cited_by cdi_FETCH-LOGICAL-c3017-e26c043185bc0b19a24c0ccb6d8a53a78131afaaf8aa43e7b867222150413df73
cites cdi_FETCH-LOGICAL-c3017-e26c043185bc0b19a24c0ccb6d8a53a78131afaaf8aa43e7b867222150413df73
container_end_page 1474
container_issue 21
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container_title Journal of polymer science. Part B, Polymer physics
container_volume 56
creator Xiang, Shuangfei
Li, Ting
Dong, Weifu
Lu, Qinghua
description ABSTRACT In this article, we report a synergistic strategy to develop dual physically cross‐linked tough hydrogels via one‐pot bulk copolymerization of N‐vinyl‐2‐pyrrolidone, acrylic acid, and stearyl methylacrylate (SMA) without any adscititious surfactant. Due to synergic effects of hydrogen bonding and hydrophobic association, the resulted dual physically cross‐linked hydrogels (DP Gel) with ultra‐wide range adjustable Young's modulus (0.08–45.6 MPa), tensile stress (0.7–6.9 MPa), and toughness (3.3–23.1 MJ m−3). Stretching to 300%, DP Gel exhibited fast recoverability that remained ~95% of initial dissipated energy after resting in 60 °C for 3 min. Finally, scanning electron microscopy revealed that the microstructure of hydrogel changed from phase separation structure to micro phase separation as SMA added, which accounted for excellent performance of DP Gel. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018, 56, 1469–1474 A facile method to fabricate dual physically cross‐linked hydrogels with ultra‐wide range adjustable Young's modulus (0.08–45.6 MPa), tensile stress (0.7–6.9 MPa), toughness (3.3–23.1 MJ·m−3), and fast recoverability is presented. The hydrogel was developed via a one‐pot bulk copolymerization of N‐vinyl‐2‐pyrrolidone (NVP), acrylic acid (AAc), and stearyl methylacrylate (SMA) without any added surfactant.
doi_str_mv 10.1002/polb.24737
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Due to synergic effects of hydrogen bonding and hydrophobic association, the resulted dual physically cross‐linked hydrogels (DP Gel) with ultra‐wide range adjustable Young's modulus (0.08–45.6 MPa), tensile stress (0.7–6.9 MPa), and toughness (3.3–23.1 MJ m−3). Stretching to 300%, DP Gel exhibited fast recoverability that remained ~95% of initial dissipated energy after resting in 60 °C for 3 min. Finally, scanning electron microscopy revealed that the microstructure of hydrogel changed from phase separation structure to micro phase separation as SMA added, which accounted for excellent performance of DP Gel. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018, 56, 1469–1474 A facile method to fabricate dual physically cross‐linked hydrogels with ultra‐wide range adjustable Young's modulus (0.08–45.6 MPa), tensile stress (0.7–6.9 MPa), toughness (3.3–23.1 MJ·m−3), and fast recoverability is presented. 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subjects Acrylic acid
Copolymerization
Hydrogels
Hydrogen bonding
hydrogen bonds
hydrophobic association
mechanical properties
Modulus of elasticity
Phase separation
Phase transitions
Recoverability
Scanning electron microscopy
Stiffness
Tensile stress
tough hydrogels
title A facile method to fabricate tough hydrogel with ultra‐wide adjustable stiffness, stress, and fast recoverability
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