Scholarlink

<p>Developing high-performance impact-stiffening polymers that are broadly applicable across chemical systems remains a key challenge, as existing designs rely on meticulously engineered molecular motifs. Inspired by water’s role in biological impact resistance, we introduce a generalizable biomimetic paradigm. We transform water—commonly considered a property-limiting plasticizer—into an active, rate-sensitive cross-linker by structurally confining bound-water networks within proton-rich polymer scaffolds. Programming their dissociation kinetics enables a sharp, reversible soft-to-rigid transition under impact via kinetic freezing. This design, demonstrated in a poly(thioctic acid)-based system, concurrently achieves outstanding energy dissipation, self-healing, and strong adhesion. Crucially, it bypasses de novo synthesis of specialized motifs and is applicable across diverse polymer backbones, establishing programmable water dynamics as a versatile principle for adaptive polymeric materials.</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

Bound water as a kinetic crosslinker for bio-inspired impact-stiffening polymers

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月17日

查看全文
  • Siyu Jin,
  • Zhaoming Zhang,
  • Menghao Ji,
  • Jiheng Hu,
  • Dianteng Zhao,
  • Yichen Huang,
  • Jiajia Xue,
  • Hang Zhao,
  • Bo Zheng,
  • Xuzhou Yan,
  • Lingyan Gao

摘要

Developing high-performance impact-stiffening polymers that are broadly applicable across chemical systems remains a key challenge, as existing designs rely on meticulously engineered molecular motifs. Inspired by water’s role in biological impact resistance, we introduce a generalizable biomimetic paradigm. We transform water—commonly considered a property-limiting plasticizer—into an active, rate-sensitive cross-linker by structurally confining bound-water networks within proton-rich polymer scaffolds. Programming their dissociation kinetics enables a sharp, reversible soft-to-rigid transition under impact via kinetic freezing. This design, demonstrated in a poly(thioctic acid)-based system, concurrently achieves outstanding energy dissipation, self-healing, and strong adhesion. Crucially, it bypasses de novo synthesis of specialized motifs and is applicable across diverse polymer backbones, establishing programmable water dynamics as a versatile principle for adaptive polymeric materials.