Jump to main content
Jump to site search

Issue 40, 2020
Previous Article Next Article

Visible-light reversible photopolymerisation: insights via online photoflow – electrospray ionisation – mass spectrometry

Author affiliations

Abstract

Light as a non-invasive and clean external stimulus provides a facile route towards macromolecular 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 polymerisation 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 depolymerisation. The process was monitored online via a photoflow – high resolution electrospray ionisation mass spectrometry setup (ESI-MS). Size exclusion chromatography provides additional offline analysis of both the polymerisation and photodegradation over time. By changing the colour of light, photopolymers can be recycled and reshaped, allowing these macromolecular precursors to be applied to reversible and photodegradable material design.

Graphical abstract: Visible-light reversible photopolymerisation: insights via online photoflow – electrospray ionisation – mass spectrometry

Back to tab navigation

Supplementary files

Article information


Submitted
07 Aug 2020
Accepted
28 Sep 2020
First published
30 Sep 2020

Polym. Chem., 2020,11, 6435-6440
Article type
Communication

Visible-light reversible photopolymerisation: insights via online photoflow – electrospray ionisation – mass spectrometry

M. Van De Walle, C. Petit, J. P. Blinco and C. Barner-Kowollik, Polym. Chem., 2020, 11, 6435
DOI: 10.1039/D0PY01119C

Social activity

Search articles by author

Spotlight

Advertisements