Abstract
We report here a simple and universal synthetic pathway covering triple click reactions, Diels–Alder, copper-catalyzed azide–alkyne cycloaddition (CuAAC), and nitroxide radical coupling (NRC), to prepare well-defined graft copolymers with V-shaped side chains. The Diels–Alder click reaction between the furan protected-maleimide-terminated poly(ethylene glycol) (PEG) and a trifunctional core (1) carrying an anthracene, alkyne, and bromide was carried out to yield the corresponding α-alkyne- and α-bromide-terminated PEG (PEG-alkyne/Br) in toluene at 110 °C. Subsequently, the polystyrene or polyoxanorbornene with pendant azide functionality as a main backbone is reacted with the PEG-alkyne/Br and 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO)-terminated poly(ε-caprolactone) using the CuAAC and NRC reactions in a one-pot fashion in N,N′-dimethylformamide at room temperature to result in the target V-shaped graft copolymers. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 4667–4674
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of Polymer Science Part A: Polymer Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.