Tough double-network elastomers with slip-rings. Issue 21 (12th May 2021)

• Record Type: Journal Article
• Authors: Chen, Zhi-Hui; Fan, Shu-Ting; Qiu, Zhen-Jiang; Nie, Zi-Jun; Zhang, Shao-Xia; Zhang, Sheng; Li, Bang-Jing; Cao, Ya
• Is Part Of: Polymer chemistry. Volume 12:Issue 21(2021)
• Page Start: 3142
• Page End: 3152
• Publication Date: 2021-05-12
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/d1py00327e
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : In order to surmount the inherent trade-off between toughness and stiffness for most elastomers, we developed a strategy which let two polymer networks form an interpenetrated structure through introducing slip-rings by a very simple one-step synthesis method. Abstract : High strength and ductility materials are in demand for various modern applications. In order to surmount the inherent trade-off between toughness and stiffness for most elastomers, we developed a strategy which let two polymer networks form an interpenetrated structure through introducing slip-rings by a very simple one-step synthesis method. The synergistic effect of the slip-rings and the double network structure make the resulting materials (SRDN elastomers) both tough and stiff. The fracture stress is up to 11 MPa. The maximum fracture strain is 1600%. Furthermore, the SRDN elastomers show good tear resistance and fracture energy of up to 66.3 kJ m −2 and 79.3 MJ m −3, respectively. In addition, the SRDN elastomers show self-healing properties similar to those of the PHEA elastomer, since the slip effect imparts good chain mobility to the material. This research provides a facile approach to fabricate super tough and stiff elastomers with self-healing ability.