Synthesis of Discrete Oligomers by Sequential PET-RAFT Single-Unit Monomer Insertion

Xu, Jiangtao, Fu, Changkui, Shanmugam, Sivaprakash, Hawker, Craig J, Moad, Graeme and Boyer, Cyrille (2017) Synthesis of Discrete Oligomers by Sequential PET-RAFT Single-Unit Monomer Insertion. Angewandte Chemie (International ed. in English), 56 29: 8376-8383. doi:10.1002/anie.201610223


Author Xu, Jiangtao
Fu, Changkui
Shanmugam, Sivaprakash
Hawker, Craig J
Moad, Graeme
Boyer, Cyrille
Title Synthesis of Discrete Oligomers by Sequential PET-RAFT Single-Unit Monomer Insertion
Journal name Angewandte Chemie (International ed. in English)   Check publisher's open access policy
ISSN 1521-3773
Publication date 2017-07-10
Sub-type Article (original research)
DOI 10.1002/anie.201610223
Open Access Status Not yet assessed
Volume 56
Issue 29
Start page 8376
End page 8383
Total pages 8
Abstract Uniform synthetic polymers with precisely defined molar mass and monomer sequence (primary structure) have many potential high-value applications. However, a robust and versatile synthetic strategy for these materials remains one of the great challenges in polymer synthesis. Herein we describe proof-of-principle experiments for a modular strategy to produce discrete oligomers by a visible-light-mediated radical chain process. We utilize the high selectivity provided by photo-induced electron/energy transfer (PET) activation to develop efficient single unit monomer insertion (SUMI) into reversible addition-fragmentation chain-transfer (RAFT) agents. A variety of discrete oligomers (single unit species, dimers, and, for the first time, trimers) have been synthesized by sequential SUMI in very high yield under mild reaction conditions. The trimers were used as building blocks for the construction of uniform hexamers and graft copolymers with precisely defined branches.
Keyword RAFT polymerization
photopolymerization
sequence control
single unit monomer insertion
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Pubmed Import
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 17 times in Thomson Reuters Web of Science Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 02 May 2018, 14:12:22 EST