{"title":"Tuning water-cellulose interactions via copper-coordinated mercerization for hydro-actuated, shape-memory cellulosic hydroplastics","authors":"","doi":"10.1016/j.matt.2024.04.033","DOIUrl":null,"url":null,"abstract":"<div><p><span><span><span>Innovative biopolymers emulating natural organisms’ reversible water-induced deformations hold great potential across various domains. Here, we create a biopolymer that unifies </span>actuation<span>, hydrosetting, and shape-memory capabilities through copper-coordinated mercerization of </span></span>nanocellulose<span> paper. This method transforms the inherently hydrophilic<span>, porous nanocellulose network into a compact amphiphilic membrane, distinguished by Cu</span></span></span><sup>2+</sup><span>-crosslinked hydrophobic domains acting as tough “net points,” ensuring exceptional water stability and ultrahigh wet mechanical performance (94.9 MPa and 3.50 GPa). Upon hydration, the membrane swiftly establishes reversible hydrogen-bonding “switches,” enabling a rapid plastic-elastic transition. The interplay between the net points and switches resolves the inherent trade-off between rapid, reversible hydrogen-bonding networks and mechanical robustness in cellulosic materials, thereby facilitating remarkable water-induced actuation, hydrosetting, and shape memory. Notably, the membrane demonstrates complex morphing and swift recovery in water, serving as a smart encrypted information carrier. Our study offers a molecular structural engineering paradigm for the rational design of advanced responsive materials.</span></p></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":null,"pages":null},"PeriodicalIF":17.3000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Matter","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2590238524002066","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Innovative biopolymers emulating natural organisms’ reversible water-induced deformations hold great potential across various domains. Here, we create a biopolymer that unifies actuation, hydrosetting, and shape-memory capabilities through copper-coordinated mercerization of nanocellulose paper. This method transforms the inherently hydrophilic, porous nanocellulose network into a compact amphiphilic membrane, distinguished by Cu2+-crosslinked hydrophobic domains acting as tough “net points,” ensuring exceptional water stability and ultrahigh wet mechanical performance (94.9 MPa and 3.50 GPa). Upon hydration, the membrane swiftly establishes reversible hydrogen-bonding “switches,” enabling a rapid plastic-elastic transition. The interplay between the net points and switches resolves the inherent trade-off between rapid, reversible hydrogen-bonding networks and mechanical robustness in cellulosic materials, thereby facilitating remarkable water-induced actuation, hydrosetting, and shape memory. Notably, the membrane demonstrates complex morphing and swift recovery in water, serving as a smart encrypted information carrier. Our study offers a molecular structural engineering paradigm for the rational design of advanced responsive materials.
期刊介绍:
Matter, a monthly journal affiliated with Cell, spans the broad field of materials science from nano to macro levels,covering fundamentals to applications. Embracing groundbreaking technologies,it includes full-length research articles,reviews, perspectives,previews, opinions, personnel stories, and general editorial content.
Matter aims to be the primary resource for researchers in academia and industry, inspiring the next generation of materials scientists.