Xue, Xiaoqiang published the artcilePreparation and characterization of thermal- and light-triggered self-healing azobenzene polymer, Recommanded Product: 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, the publication is Polymers for Advanced Technologies (2022), 33(4), 1328-1340, database is CAplus.
Both temperature- and light-triggered self-healing azobenzene polymer was successfully synthesized via radical copolymerization of 4-(furan-maleimide ethyl) Me methacrylate (MMA-FMI), 4′-(oxyhexyl methacrylate)-4-(oxyfuran-2-carbomethoxy) azobenzene (MMA-FAzo) and 6-(4′-methoxy-4-oxyazobenzene)-hexyl methacrylate at 50°C. The structure of the polymer was characterized by proton NMR (1H-NMR) spectroscopy, Fourier transform IR spectroscopy, and gel permeation chromatog. Interestingly, furan and maleimide thermally reversible groups were introduced into the polymer. After the furan rings on the MMA-FMI were removed at high temperatures, the exposed maleimide groups were further added with the furan rings on the MMA-FAzo to form a crosslinked network. The crosslinked polymer film was still soluble in the anisole after heating, which could further illustrate the thermal reversibility of the polymer film and realized the recyclability and reworkability of the side-chain azobenzene polymer. 1H-NMR could prove that the crosslinked polymer was completely decrosslinked and the polymer was thermoreversible. UV-visible (UV-Vis) absorption spectra showed rapid photoisomerization of the polymer, and surface-relief grating formed on the crosslinked PAzo film was also investigated using illumination from a linearly polarized Kr+ laser beam. The surface modulation depth and grating spacing were about 149 nm, and 1.7μm, resp. What is more, the polarized light microscopy showed that the crosslinked polymer film could be self-repaired under the combined action of UV light and heating.
Polymers for Advanced Technologies published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C12H9N3O4, Recommanded Product: 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics