Superstretchable Dynamic Polymer Networks. Issue 44 (6th September 2019)

• Record Type: Journal Article
• Authors: Zhang, Huan; Wu, Yanzhou; Yang, Jinxia; Wang, Dong; Yu, Pengyun; Lai, Chi To; Shi, An‐Chang; Wang, Jianping; Cui, Shuxun; Xiang, Junfeng; Zhao, Ning; Xu, Jian
• Is Part Of: Advanced materials. Volume 31:Issue 44(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-09-06
• Subjects: dynamic crosslinks -- polymer network -- superstretchability; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201904029
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: Superstretchable materials have many applications in advanced technological fields but are difficult to stretch to more than 1000× their original length. A superstretchable dynamic polymer network that can be stretched to 13 000× its original length is designed. It is revealed that superstretchability of the polymer network is derived from the synergistic effect of two different types of dynamic bonds, including a small number of strong dynamic imine bonds to maintain the network integrity during stretching and a large number of weak ionic hydrogen bonds to dissipate energy. This approach provides new insights into the design of superstretchable polymers. Abstract : Superstretchable polymer networks with two types of dynamic bonds are obtained. A small number of strong imine bonds maintain the network integrity during stretching, and a large number of weak ionic hydrogen bonds dissipate energy. The synergetic interplay between these two mechanisms can result in superstretchable polymer networks with a maximum stretching ratio up to 13 000×.