Open AccessWhat happens in the dark? Assessing the temporal control of photo‐mediated controlled radical polymerizations
Author(s) -
Dolinski Neil D.,
Page Zachariah A.,
Discekici Emre H.,
Meis David,
Lee InHwan,
Jones Glen R.,
Whitfield Richard,
Pan Xiangcheng,
McCarthy Blaine G.,
Shanmugam Sivaprakash,
Kottisch Veronika,
Fors Brett P.,
Boyer Cyrille,
Miyake Garret M.,
Matyjaszewski Krzysztof,
Haddleton David M.,
Alaniz Javier Read,
Anastasaki Athina,
Hawker Craig J.
Publication year - 2019
Publication title -
journal of polymer science part a: polymer chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.768
H-Index - 152
eISSN - 1099-0518
pISSN - 0887-624X
DOI - 10.1002/pola.29247
Subject(s) - polymerization , photochemistry , chemistry , signature (topology) , radical polymerization , polymer chemistry , organic chemistry , polymer , geometry , mathematics
A signature of photo‐mediated controlled polymerizations is the ability to modulate the rate of polymerization by turning the light source ‘on’ and ‘off.’ However, in many reported systems, growth can be reproducibly observed during dark periods. In this study, emerging photo‐mediated controlled radical polymerizations are evaluated with in situ 1 H NMR monitoring to assess their behavior in the dark. Interestingly, it is observed that Cu‐mediated systems undergo long‐lived, linear growth during dark periods in organic media.