Jump to main content
Jump to site search


Iodine-mediated photo-controlled atom transfer radical polymerization (photo-ATRP) and block polymerization combined with ring-opening polymerization (ROP) via a superbase

Author affiliations

Abstract

Most organocatalysts for photo-controlled atom transfer radical polymerization (photo-ATRP) are metal complexes or synthetically elaborate organic dyes, which are toxic and expensive. Herein, we present a combination of 1,1,3,3-tetramethylguanidine (TMG) and sodium iodide (NaI) under white LED irradiation that could catalyze iodine-mediated photo-ATRP. Using a dual initiator and combining with ring-opening polymerization (ROP), well-defined poly(methacrylate)-b-polyester diblock copolymers can be successfully prepared in “one-pot” using a TMG/NaI photoredox catalytic system. Moreover, several superbases such as 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD), 1,8-diazabicyclo [5.4.0]-undec-7-ene (DBU) and a phosphazene superbase (t-Bu-P4) could also be employed with NaI to serve as photoredox catalysts for this polymerization system and block copolymers could be synthesized in “one-pot”.

Graphical abstract: Iodine-mediated photo-controlled atom transfer radical polymerization (photo-ATRP) and block polymerization combined with ring-opening polymerization (ROP) via a superbase

Back to tab navigation

Supplementary files

Article information


Submitted
20 Jul 2020
Accepted
18 Sep 2020
First published
21 Sep 2020

Polym. Chem., 2020, Advance Article
Article type
Paper

Iodine-mediated photo-controlled atom transfer radical polymerization (photo-ATRP) and block polymerization combined with ring-opening polymerization (ROP) via a superbase

M. Li, S. Wang, F. Li, L. Zhou and L. Lei, Polym. Chem., 2020, Advance Article , DOI: 10.1039/D0PY01031F

Social activity

Search articles by author

Spotlight

Advertisements