Preparation and Properties of PMMA Nanofibers with Photochromic and Photoluminescent Functions
A new polymer with spiropyran photochromic units (SP-PMMA) was synthesized by atom transfer radical polymerization (ATRP). The 1H NMR, FT-IR, GPC and TGA results show that the SP-PMMA has good structure features such as controllable molecular weight, narrow molecular weight distribution, and good thermal stability. SP-PMMA nanofibers with multi-base photochromic and photoluminescent functions have been successfully prepared by electrospinning technique and synergistic coordination of the SP-PMMA with organic rare earth complexes. Scanning electron microscopy (SEM) observations show that the as-prepared nanofibers have a smooth surface, with the average diameter about 600 nm. Fluorescent and UV absorption spectra indicate that the SP-PMMA nanofibers can show red, green, yellow, blue-purple, and white colors under the excitation of 295, 367 nm UV lights and far-infrared light. The results of the present study verify that the SP-PMMA nanofibers can exhibit multi-base photochromic and photoluminescent functions. These kinds of multi-base photochromic and photoluminescent functions are of great significance for the development of multifunctional photochromic fibers.
The authors appreciate the financial support provided by the Natural Scientific Foundation of China (51373118) and the Application Fundamental and Advanced Technology Research Proposal Project of Tianjin, China (18JCZDJC38300, 13JCYBJC17200).
Notes The authors declare no competing financial interest.
- 4.X. Zou, X. Xiao, S. Zhang et al., A photo-switchable and thermal-enhanced fluorescent hydrogel prepared from N-isopropylacrylamide with water-soluble spiropyran derivative. J. Biomater. Sci. Polym. Ed. 32, 1–16 (2018)Google Scholar
- 7.S. Bushuyev Oleksandr, M. Aizawa, A. Shishido et al., Shape-shifting azo dye polymers: towards sunlight-driven molecular devices. Macromol. Rapid Commun. 39(1), 170–173 (2017)Google Scholar
- 10.M.N. Liu, X. Yan, M.H. You et al., Reversible photochromic nanofibrous membranes with excellent water/windproof and breathable performance. J. Appl. Polym. Sci. 135(23), 463–468 (2018)Google Scholar
- 20.C. Pauly Anja, Schöller Katrin, Baumann Lukas et al., ATRP-based synthesis and characterization of light-responsive coatings for transdermal delivery systems. Sci. Technol. Adv. Mater. 16(3), 272–275 (2015)Google Scholar