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Development of New Atom Transfer Radical Polymerization System by Iron (III)‐Metal Salts Without Using any External Initiator and Reducing Agent
Author(s) -
Khan Mohd Yusuf,
Chen Xiangxiong,
Lee Seung Woo,
Noh Seok Kyun
Publication year - 2013
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201300221
Subject(s) - atom transfer radical polymerization , radical polymerization , polymer chemistry , polymerization , metal , reducing agent , chemistry , reversible addition−fragmentation chain transfer polymerization , chain transfer , atom (system on chip) , living polymerization , materials science , photochemistry , polymer , organic chemistry , computer science , embedded system
Atom transfer radical polymerization (ATRP) catalyzed by high oxidation state metal salts of FeX 3 is developed for the first time in the absence of both external initiator and reducing agent. Methyl methacrylate (MMA) and styrene are polymerized successfully using FeX 3 /Phosphorous ligands with well‐controlled molecular weight distributions (=1.5). The molecular weight of the polymers increases with monomer consumption with the progress of time and the polymerization behaviors show a decent ATRP trend. Activators and initiators are suggested to generate in situ by the addition reaction of MMA and one equivalent of FeX 3 . The PMMA synthesized from without‐initiator system is characterized by 1 H, 13 C and DEPT (distortionless enhancement by polarization transfer nuclear magnetic resonance) nuclear magnetic resonance spectroscopy. Chain extension and copolymerization experiments prove the livingness of the obtained polymer.