Facile fabrication of a CD/PVA composite polymer to access light-responsive shape-memory effects. Issue 26 (11th June 2020)

• Record Type: Journal Article
• Authors: Wu, Shuangshuang; Li, Wei; Sun, Yuqiong; Pang, Xiaoliang; Zhang, Xuejie; Zhuang, Jianle; Zhang, Haoran; Hu, Chaofan; Lei, Bingfu; Liu, Yingliang
• Is Part Of: Journal of materials chemistry. Volume 8:Issue 26(2020)
• Page Start: 8935
• Page End: 8941
• Publication Date: 2020-06-11
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d0tc00910e
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A new light-responsive shape-memory compound fabricated by combining carbon dots with excellent photo-thermal conversion and PVA with well mechanical properties. Abstract : Stimuli-responsive shape-memory materials are a category of fascinating smart materials, which undergo reversible shape transformation with environmental changes. Among a large number of stimuli-responsive shape-memory materials, light-driven materials have sparked tremendous attention because of their stability, remote operability and environmentally friendly. Herein, we report a novel strategy for the synthesis of a light-responsive shape-memory polymer that is made from carbon dots and polyvinyl alcohol. The as-prepared carbon dots are endowed with good visible light absorption and excellent photothermal conversion, which enable the carbon dot/polyvinyl alcohol composite polymer to serve as a light-responsive shape-memory polymer. The carbon dots not only work as photothermal agents but also offer additional hydrogen bond interaction, which accelerates the shape-memory recovery rate. The results show that the composite polymer can realize shape recovery using relatively low laser power. Most importantly, the as-prepared carbon dot/polyvinyl alcohol composite polymer not only possesses great research potential in different types of fields, such as medical and sensing, but also provides a effective and economic strategy for taking the advantage of light.