Wang Zhongkai, Yuan Liang, Jiang Feng, Zhang Yaqiong, Wang Zhigang, Tang Chuanbing
CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China.
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States.
ACS Macro Lett. 2016 Feb 16;5(2):220-223. doi: 10.1021/acsmacrolett.5b00843. Epub 2016 Jan 21.
Natural resilin possesses outstanding mechanical properties, such as high strain, low stiffness, and high resilience, which are difficult to be reproduced in synthetic materials. We designed high resilient elastomers (HREs) with a network structure to mimic natural resilin on the basis of two natural abundant polymers, stiff cellulose and flexible polyisoprene. With plasticization via mineral oil and mechanical cyclic tensile deformation processing, HREs show ultrahigh resilience, high strain, and reasonable tensile strength that closely mimic natural resilin. Moreover, the mechanical properties of HREs can be finely tuned by adjusting the cellulose content, providing the opportunity to synthesize high resilient elastomers that mimic different elastic proteins, such as elastin.
天然弹性蛋白具有出色的机械性能，如高应变、低刚度和高弹性，这些性能很难在合成材料中重现。我们基于两种天然丰富的聚合物——刚性纤维素和柔性聚异戊二烯，设计了具有网络结构的高弹性弹性体（HREs）来模拟天然弹性蛋白。通过矿物油增塑和机械循环拉伸变形处理，HREs表现出超高弹性、高应变和合理的拉伸强度，与天然弹性蛋白极为相似。此外，通过调整纤维素含量可以精细调节HREs的机械性能，为合成模拟不同弹性蛋白（如弹性硬蛋白）的高弹性弹性体提供了机会。
