Shape Memory Polyurethane Composite With Fast Response to Near-Infrared Light Based on Tannic Acid-Iron and Dynamic Phenol-Carbamate Network

Yong Yong; Yang Liu; Zetian Zhang; Songbo Dai; Xiaohan Yang; Fufen Li; Zhengjun Li

doi:10.1002/marc.202400105

Shape Memory Polyurethane Composite With Fast Response to Near-Infrared Light Based on Tannic Acid-Iron and Dynamic Phenol-Carbamate Network

Macromol Rapid Commun. 2024 Apr 16:e2400105. doi: 10.1002/marc.202400105. Online ahead of print.

Authors

Yong Yong^{1

2}, Yang Liu^{1

2}, Zetian Zhang^{1

2}, Songbo Dai^{1

2}, Xiaohan Yang^{1

2}, Fufen Li^{1

2}, Zhengjun Li^{1

2}

Affiliations

¹ College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China.
² Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, 610065, China.

PMID: 38623606
DOI: 10.1002/marc.202400105

Abstract

Intelligent materials derived from green and renewable bio-based materials garner widespread attention recently. Herein, shape memory polyurethane composite (PUTA/Fe) with fast response to near-infrared (NIR) light is successfully prepared by introducing Fe³⁺ into the tannic acid-based polyurethane (PUTA) matrix through coordination between Fe³⁺ and tannic acid. The results show that the excellent NIR light response ability is due to the even distribution of Fe³⁺ filler with good photo-thermal conversion ability. With the increase of Fe³⁺ content, the NIR light response shape recovery rate of PUTA/Fe composite films is significantly improved, and the shape recovery time is reduced from over 60 s to 40 s. In addition, the mechanical properties of PUTA/Fe composite film are also improved. Importantly, owing to the dynamic phenol-carbamate network within the polymer matrix, the PUTA/Fe composite film can reshape its permanent shape through topological rearrangement and show its good NIR light response shape memory performance. Therefore, PUTA/Fe composites with high content of bio-based material (TA content of 15.1-19.4%) demonstrate the shape memory characteristics of fast response to NIR light; so, it will have great potential in the application of new intelligent materials including efficient and environmentally friendly smart photothermal responder.

Keywords: NIR light responsive polymers; bio‐based material; functional materials; shape memory polymers; tannic acid.