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New ligands for atom‐transfer radical polymerization
Author(s) -
Zhu Shenmin,
Yan Deyue
Publication year - 2000
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 - 10.1002/1521-3927(20001101)21:17<1209::aid-marc1209>3.0.co;2-9
Subject(s) - polymer chemistry , living free radical polymerization , copolymer , styrene , atom transfer radical polymerization , radical polymerization , polymerization , reversible addition−fragmentation chain transfer polymerization , methyl methacrylate , polymer , iminodiacetic acid , chemistry , monomer , living polymerization , materials science , organic chemistry , chelation
A new type of ligands based on organic acids, such as acetic acid, iminodiacetic acid, succinic acid and isophthalic acid, has been successfully employed in the iron‐mediated atom‐transfer radical polymerization (ATRP) of vinyl monomers, such as styrene (St) and methyl methacrylate (MMA). The systems containing different organic acids can react at 250°C to 1300°C in “living”/controlled radical polymerizations giving polymers with relatively narrow molecular weight distributions ( M w / M n = 1.2–1.5). 1 H NMR spectroscopy has been used to study the structure of the resulting polymers. Block copolymers were synthesized to confirm the ìlivingî nature of the system. The measured molecular weights are close to the calculated values for the polymerization of MMA and are somewhat lower than the theoretical ones for styrene.