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Cited by 555

The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.

Activator Generated by Electron Transfer for Atom Transfer Radical Polymerization

Jakubowski, Wojciech, Matyjaszewski, Krzysztof·2005·Macromolecules

Abstract

A novel procedure was developed for activation of an oxidatively stable catalyst complex added to an atom transfer radical polymerization (ATRP). Tin(II) 2-ethylhexanoate (Sn(EH) 2 ) was used as a reducing agent of various Cu(II) complexes in ATRP of various monomers initiated by alkyl halides. This approach further improves a simultaneous normal and reverse initiation (SR&NI) by eliminating free radical initiators for the activation of the higher oxidation state catalyst complex. As a result, “activator generated by electron transfer” (AGET) ATRP allows the preparation of pure block copolymers. Several combinations of monomer/catalyst complex precursor were studied, including styrene/CuCl 2 /dNbpy, octadecyl methacrylate/CuCl 2 /dNbipy, methyl methacrylate/CuCl 2 /PMDETA, n -butyl acrylate/CuBr 2 /PMDETA, and methyl acrylate/CuCl 2 /Me 6 TREN. Polymerization proceeded in a controlled way for all systems, producing well-defined polymers with controlled degree of polymerization and narrow molecular weight distribution, demonstrating the robust nature of AGET ATRP. Additionally, Sn(EH) 2 was used simultaneously as a reducing agent for ATRP of octadecyl methacrylate and a catalyst for ring-opening polymerization (ROP) of ε-caprolactone, allowing direct synthesis of the corresponding block copolymer.

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Metadata

Authors
Jakubowski, W., & Matyjaszewski, K.
Venue
Macromolecules
Published
2005-04-21
Volume
38
Issue
10
Pages
4139-4146
ISSN
  • 0024-9297 (ISSN-L)
  • 1520-5835
OpenAlex
W2030714364
Cited by
555
References
23
FWCI
14.69
Type
journal article
Language
en
Open access
closed

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