1. Designing of Rewritable Paper by Hydrochromic Donor–Acceptor Stenhouse Adducts
- Author
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Lijun Mao, Chao He, Yongli Duan, Dongsheng Wang, Xu Deng, Yonghao Zheng, Zhen Wang, and Chaoyue Xiong
- Subjects
Materials science ,General Engineering ,General Physics and Astronomy ,Nanotechnology ,02 engineering and technology ,Paper based ,Stamping ,engineering.material ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Environmental resource ,0104 chemical sciences ,Coating ,engineering ,General Materials Science ,0210 nano-technology ,Donor acceptor - Abstract
Rewritable paper is meaningful to the recyclable and sustainable utilization of environmental resources and thus has been extensively investigated for several decades. In this work, we demonstrated an efficient and convenient strategy to fabricate rewritable paper based on reversible hydrochromism of donor-acceptor Stenhouse adducts (DASAs). The kinetics and efficiency of isomerization could be well-controlled by adjusting the surrounding temperature and humidity. Monocolored rewritable paper was prepared by coating cyclic DASA·xH2O on the paper surface. Writing, printing, stamping and patterning were realized on the rewritable paper. The information could be controllably erased by treatment in a humid atmosphere. More importantly, the rewritable paper was upgraded to multicolored by combination of two DASA materials. The color of chirography was switched by controlling the writing speed.
- Published
- 2021