Scholarlink

<p>Due to their desirable flexibility, elasticity, and stretchability, hydrogels have attracted significant attention in the field of flexible wearable devices. However, the pervasive issues of solvent evaporation and insufficient mechanical properties severely restrict their practical application in the field of flexible sensing. This study proposes a conductive organogel (PAC) that is composed of acrylic acid (AAc), polyethylene glycol (PEG), γ-cyclodextrin (γ-CD), etc. Through photopolymerization, the polymer chain segments are wrapped by the cavities of γ-CD, thereby forming a dynamic network structure described as “ring-wrapped chains”. The synergistic effect between PEG and the dynamic network significantly enhances the mechanical properties of the PAC gel. In addition, the non-volatile property of PEG ensures that the gel remains stable within the environmental temperature range of –&#xa0;20 to 80&#xa0;°C. The presence of lithium ions can form ion-conducting channels in the polymer network, thereby enabling the gel to exhibit good resistance response characteristics. Furthermore, by means of the photocurable 3D printing, this gel can be fabricated into flexible wearable devices with various complex structures, which are capable of sensing and monitoring the movement of human joints. This study presents a new approach for developing highly stable and strengthened gel with dynamic crosslinking networks, which demonstrates great potential for application in flexible wearable devices.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

PEG-based conductive gels with “ring-wrapped chains” dynamic crosslinking used for flexible wearable devices

  • 期刊论文

  • 发表日期：

    2026年2月23日

查看全文
  • Yiting Du,
  • Guoqing Qin,
  • Caiyi Han,
  • Youjie Rong,
  • Hui Du,
  • Zhengtao Wang,
  • Xiaobo Huang

摘要

Due to their desirable flexibility, elasticity, and stretchability, hydrogels have attracted significant attention in the field of flexible wearable devices. However, the pervasive issues of solvent evaporation and insufficient mechanical properties severely restrict their practical application in the field of flexible sensing. This study proposes a conductive organogel (PAC) that is composed of acrylic acid (AAc), polyethylene glycol (PEG), γ-cyclodextrin (γ-CD), etc. Through photopolymerization, the polymer chain segments are wrapped by the cavities of γ-CD, thereby forming a dynamic network structure described as “ring-wrapped chains”. The synergistic effect between PEG and the dynamic network significantly enhances the mechanical properties of the PAC gel. In addition, the non-volatile property of PEG ensures that the gel remains stable within the environmental temperature range of – 20 to 80 °C. The presence of lithium ions can form ion-conducting channels in the polymer network, thereby enabling the gel to exhibit good resistance response characteristics. Furthermore, by means of the photocurable 3D printing, this gel can be fabricated into flexible wearable devices with various complex structures, which are capable of sensing and monitoring the movement of human joints. This study presents a new approach for developing highly stable and strengthened gel with dynamic crosslinking networks, which demonstrates great potential for application in flexible wearable devices.