journal article·2024-08-23

NIR-Responsive, Bionic, Shape Memory Polymers with Dynamically Cross-Linking Network

Zequan Li, Hong Li, Ting Xie, Wei Gao

ACS Applied Polymer Materials· Volume 6· Issue 16
Publisher page

Abstract

Shape memory polymers (SMPs) are a class of stimulus-responsive materials that are capable of restoring shape after heating. With the development of science and technology, the requirements for shape memory materials are getting higher and higher to meet the needs of different applications. However, these conventional shape memory materials are hard to be remodeled into different shapes due to their cross-linking structure. Meanwhile, the single-heating-triggered shape memory effect limits the application scenarios of SMPs. Herein, we reported a dynamically cross-linking polymer network using polycaprolactone copped with dopamine (PCL-Dopa) and complex ion Fe 3+ to realize the remodeling of polymers after shape restoration. In addition, based on the photothermal conversion of metal–organic coordination formed by PCL-Dopa and Fe 3+, such SMPs can achieve a sensitive photothermal response and realize the shape memory effect. Therefore, these PCL-Dopa-Fe 3+ polymers have the potential to be applied in light-responsive switches, brakes, and other scenarios.
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Research context

OpenAlex topics: Polymer composites and self-healing · Photochromic and Fluorescence Chemistry · Advanced Materials and Mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Resources, Environment and Materials, Guangxi University, Nanning 530004, Guangxi, China

Guangxi Engineering and Technology Research Center for High Quality Structural Panels from Biomass Wastes, Nanning 530004, Guangxi, China

State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China

Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, Guangxi, China

Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, Guangxi, China

Funding

Guangxi University · Guangxi Key Research and Development Program · Science and Technology Department of Guangxi Zhuang Autonomous Region · Guangxi Hongkai Furniture Co., Ltd.

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