《Visible-light reversible photopolymerization: insights via online photoflow – electrospray ionization – mass spectrometry》 was written by Van De Walle, Matthias; Petit, Charlotte; Blinco, James P.; Barner-Kowollik, Christopher. Reference of Ethyl 4-bromobutyrateThis research focused onvisible light reversible photopolymerization electrospray ionization mass spectrometry. The article conveys some information:
Light as a non-invasive and clean external stimulus provides a facile route towards macromol. design. Herein, we demonstrate the scalable synthesis of catalyst-free, visible-light mediated photo-oligomers and -polymers via a step-growth mechanism. Both a batch approach and a continuous photoflow setup are employed to investigate the degree of polymerization and scalability. Violet blue light at 415 nm triggers [2 + 2]-cycloadditions of a pyrene-chalcone derivative to grow linear step-growth polymers, while subsequent UV-B light irradiation triggers the depolymerization The process was monitored online via a photoflow – high resolution electrospray ionization mass spectrometry setup (ESI-MS). Size exclusion chromatog. provides addnl. off-line anal. of both the polymerization and photodegradation over time. By changing the color of light, photopolymers can be recycled and reshaped, allowing these macromol. precursors to be applied to reversible and photodegradable material design. In addition to this study using Ethyl 4-bromobutyrate, there are many other studies that have used Ethyl 4-bromobutyrate(cas: 2969-81-5Reference of Ethyl 4-bromobutyrate) was used in this study.
Ethyl 4-bromobutyrate(cas: 2969-81-5) belongs to bromides. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Reference of Ethyl 4-bromobutyrate
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary