Wang Ning, Feng Lei, Xu Xing-Dong, Feng Shengyu
Key Laboratory of Special Functional Aggregated Materials of Ministry of Education, Shandong Key Laboratory of Advanced Silicone Materials and Technology, School of Chemistry and Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan, Shandong Province, 250100, China.
Macromol Rapid Commun. 2022 Apr;43(7):e2100885. doi: 10.1002/marc.202100885. Epub 2022 Feb 13.
Two aldehyde-modified tetraphenylene derivatives with different functionality are synthesized and exhibit different fluorescence properties. By incorporating tetraphenylene derivatives into polydimethylsiloxane (PDMS) networks, two elastomers are prepared through dynamic covalent cross-linking. The elastomers show excellent fluorescence properties, mechanical properties, thermal stability as well as self-healing and recycle properties. At the same time, the mechanical properties of the elastomers are influenced by the functionality of the tetraphenylene derivatives and the molecular weight of the PDMS. The self-healing process takes place quickly and the recycling process can be carried out by solution processing and hot pressing. It shows the similar tensile properties between the pristine and healed samples.
合成了两种具有不同功能的醛基修饰的四亚苯基衍生物，它们表现出不同的荧光特性。通过将四亚苯基衍生物引入聚二甲基硅氧烷（PDMS）网络中，通过动态共价交联制备了两种弹性体。这些弹性体具有优异的荧光特性、机械性能、热稳定性以及自愈和可回收性能。同时，弹性体的机械性能受四亚苯基衍生物的功能和PDMS分子量的影响。自愈过程快速发生，回收过程可通过溶液处理和热压进行。原始样品和愈合样品之间显示出相似的拉伸性能。
