Abstract
Azide-alkyne and Diels-Alder click reactions together with a click-like nitroxide radical coupling reaction were used in a one-pot fashion to generate tetrablock quaterpolymer. The various living polymerization generated linear polymers with orthogonal end-functionalities, maleimide-terminated poly(ethylene glycol) (PEG-MI), anthracene- and azide-terminated polystyrene, alkyne- and bromide-terminated poly(tert-butyl acrylate) or alkyne-poly(n-butyl acrylate), and tetramethylpiperidine-1-oxyl (TEMPO)-terminated poly(Îμ- caprolactone) (PCL-TEMPO) were clicked together in a one-pot fashion to generate PEG-b-PS-b-PtBA-b-PCL or PEG-b-PS-b-PnBA-b-PCL quaterpolymer using Cu(0), CuBr, and N,N,Nâ€2,Nâ€3,Nâ€3- pentamethyldiethylenetriamine as catalyst in dimethyl formamide at 80 °C for 36 h. Linear precursors and target quaterpolymers were analyzed via 1H NMR and gel permeation chromatography.
Original language | English |
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Pages (from-to) | 1962-1968 |
Number of pages | 7 |
Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
Volume | 49 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 May 2011 |
Keywords
- atom transfer radical polymerization (ATRP)
- azide-alkyne cycloaddition reaction
- block copolymer
- click reactions
- Diels-Alder cycloaddition reaction
- GPC
- nitroxide radical coupling reaction
- NMR
- poly(ethylene glycol)
- poly(Îμ-caprolactone)
- poly(n-butyl acrylate)
- poly(tert-butyl acrylate)
- polystyrene
- quaterpolymer
- ring opening polymerization (ROP)