文献类型：期刊文献

英文题名：Intrinsically Photopolymerizable Dynamic Polymers Derived from a Natural Small Molecule

作者：Shi, Chen-Yu[1,2];Zhang, Qi[1,2];Wang, Bang-Sen[1,2];Chen, Meng[1,2];Qu, Da-Hui[1,2]

机构：[1]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Joint Int Res Lab Precis Chem, Shanghai 200237, Peoples R China

年份：2021

卷号：13

期号：37

起止页码：44860

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20213910939662);WOS:【SCI-EXPANDED(收录号:WOS:000700877100099)】；

基金：We are grateful for funding from the National Natural Science Foundation of China (Grant Nos. 22025503, 21790361, 21871084, and 21672060), Shanghai Municipal Science and Technology Major Project (Grant No. 2018SHZDZX03), the Fundamental Research Funds for the Central Universities, the Programme of Introducing Talents of Discipline to Universities (Grant No. B16017), Program of Shanghai Academic/Technology Research Leader (19XD1421100), and the Shanghai Science and Technology Committee (Grant No. 17520750100).

语种：英文

外文关键词：dynamic covalent chemistry; supramolecular materials; disulfides; dynamic materials; photopolymerization

摘要：Developing photopolymerizable polymeric materials offers many opportunities to process materials in a remote and controllable manner. However, most photopolymerizable technologies require the external introduction of photoabsorbing units, whereas designing intrinsically photopolymerizable polymers is still highly challenging. Here, we report that a natural small-molecule disulfide, thioctic acid, can be directly transformed into a poly(disulfides) network under the irradiation of visible light without any external additives. The resulting polymer network exhibits optical transparency, mechanical stretchability and toughness, ambient self-healing ability, and especially strong adhesive ability to different surfaces. The dynamic covalent backbones of the poly(disulfides) endow the depolymerization ability to recycle the material in a closed-loop manner. We foresee that this facile and robust photopolymerization system is of great promise toward low-cost and high-performance photocuring coatings and adhesives.