CARBOHYDRATE POLYMERS
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2017
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IF 4.811
Xiancai Jiang,Nanping Xiang,Jinquan Wang,Yulai Zhao,Linxi Hou
Development of bio-based hydrogels with good mechanical properties is of great importance for their excellent biocompatibility and biodegradability. In this paper, chitosan (CS) based double network (DN) hydrogel was prepared by dissolving CS in AlCl 3 ·6H 2 O aqueous solution instead of acetic acid solution. After dissolving acrylic amide (AM), acrylic acid (AA), N, N’-methylenebisacrylamide and 2-hydroxy-4′-(2-hydoxyethoxy)-2-methylpropiophenone were added into the CS/Al 3+ solution and the CS/PAMAA-Al 3+ DN hydrogel was prepared by UV polymerization. The hybrid physical and chemical crosslinked network hydrogels were prepared. The tensile and compression properties of CS/PAMAA-Al 3+ DN hydrogel were studied. The results showed that the CS/PAMAA-Al 3+ DN hydrogels have high toughness, stretch-ability, and excellent shape recovery properties. The CS/PAMAA-Al 3+ DN hydrogel could show the tensile strength of 0.54 MPa and elongation at break of 2203.7%. These properties arise from the dynamic ionic interaction between Al 3+ and CS/PAMAA macromolecular chains.
研究领域:
材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
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IF 5.518
Enke Feng,Guangchao Zheng,Xue Li,Mengzhen Zhang,Xiaoqin Li,Xinning Han,Linan Cao,Zhiqiang Wu
Low-temperature tolerant and solvent-resistant soft electronic devices have received increasing attention due to their excellent adaptability under multiple environments. Herein, the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and zwitterionic betaine (ZB) are introduced into the Al 3+ cross-linked polyacrylic acid (PAA) networks to construct a multipurpose hydrogel (PAA-Al 3+ /PEDOT:PSS/ZB), which exhibits superior stretchability (1457 %), tensile strength (1.43 MPa), freeze-tolerance (−35 °C) and solvent-resistant capability. Furthermore, a strain sensor with multi-environmental stability is fabricated based on this hydrogel, which could not only accurately monitor the different human motions (finger bending, writing, swallowing, breathing, walking, head-up/down and wrist-up/down) at room temperature , but also reliably distinguish the various mechanical deformations in diverse solvent media (water, cyclohexane and methylbenzene) and harsh climatic condition (−35 °C). In addition, a flexible tube-shaped PAA-Al 3+ /PEDOT:PSS/ZB hydrogel is also successfully developed in the specific reaction mold, which can be utilized as a soft connection for the tap or two severed glass tubes to transport different liquids benefiting from the significant mechanical toughness and anti-swelling property. It is anticipated that the as-prepared hydrogel may be a promising flexible material with multi-environmental stability applying in biomedical devices, soft robotics, electronic skins and wearable sensors under complex environments.
研究领域:
材料科学
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生物医学工程
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柔性电子
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
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2025
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IF 9.5
Zinan Wang,Tianxu Ji,Qilin Zhang,Peng Wang,Xiaoyu Yang,Shuo Zhang,Yuhang Jin,Xiaolong Fan,Jiaxuan Zhang,Wei Duan,Ying Yue,Yang Ju,Yunpeng Liu
Constructing an artificial solid electrolyte interface (SEI) layer is an effective strategy to suppress dendrite growth and corrosion in aqueous zinc batteries (AZBs). However, 2D material-based SEI coatings are generally non-biodegradable, posing environmental risks due to their persistence in soil. This research introduces a starch/polyacrylamide (STA/PAAm) hydrogel membrane developed as a self-healing SEI layer for AZBs. The incorporation of biomass-derived starch endows the STA/PAAm hydrogel with excellent soil biodegradability, achieving complete degradation within 21 days. Meanwhile, its dual-network structure, reinforced by reversible Al3+ crosslinking, offers robust mechanical resilience, self-healing ability, and high ionic conductivity—presenting a sustainable alternative to conventional SEI materials. Theoretical calculations reveal that the hydrogel modulates Zn2+ solvation, forming a stable [Zn(H2O)4(STA)(AAm)]2+ configuration, which suppresses hydrogen evolution and promotes uniform Zn2+ deposition along the (002) plane. The STA/PAAm-coated Zn anode exhibits an extended lifespan of over 3000 h at 2 mA cm−2, significantly surpassing that of bare Zn (531 h). Paired with an AlVO-NMP cathode, the pouch-type full cell retains 87.2% capacity after 2000 cycles at 5 A g−1 and demonstrates remarkable flexibility, powering LEDs under bending and folding conditions. This work bridges high-performance energy storage with environmental sustainability, offering a green paradigm for flexible batteries.
研究领域:
材料科学
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储能技术
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环境可持续性
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电化学
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高分子科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）