Premium
Controlled Anionic Synthesis of Poly[2‐(3‐nitrocarbazolyl)ethyl methacrylate]
Author(s) -
Cho YoungSun,
Lee JaeSuk
Publication year - 2001
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(20010501)22:8<638::aid-marc638>3.0.co;2-k
Subject(s) - polymer chemistry , methyl methacrylate , copolymer , methacrylate , anionic addition polymerization , polystyrene , monomer , materials science , living anionic polymerization , radical polymerization , polymerization , poly(methyl methacrylate) , polymer , molar mass distribution , chemistry , composite material
Poly[2‐(3‐nitrocarbazolyl)ethyl methacrylate] (poly(NCzMA)) with controlled molecular weight and narrow molecular weight distribution was successfully synthesized using (methyl methacryloyl)potassium (MMA) as a weak initiator in the presence of diethylzinc (Et 2 Zn) in THF at –78°C. Et 2 Zn acted both as an additive for the coordination with enolate anion and nitro group and as a scavenger to remove impurities. Block copolymers PMMA‐ block ‐poly(NCzMA)‐ block ‐PMMA and poly(NCzMA)‐ block ‐PS‐ block ‐poly(NCz‐MA), were also synthesized quantitatively (PMMA: poly(methyl methacrylate), PS: polystyrene). The results indicate that Et 2 Zn can be used to synthesize the polymers of solid, nitro group‐containing methacrylate monomers by anionic polymerization in THF.