Abstract
In this study, graft copolymers with regular graft points containing polystyrene (PS) backbone and poly(methyl methacrylate) (PMMA), poly(tert-butyl acrylate) (PtBA), or poly (ethylene glycol) (PEG) side chains were simply achieved by a sequential double polymer click reactions. The linear α-alkyne-Ï-azide PS with an anthracene pendant unit per chain was produced via atom transfer radical polymerization of styrene initiated by anthracen-9-ylmethyl 2-((2-bromo-2-methylpropanoyloxy)methyl)-2-methyl-3-oxo-3- (prop-2-ynyloxy) propyl succinate. Subsequently, the azide-alkyne click coupling of this PS to create the linear multiblock PS chain with pendant anthracene sites per PS block, followed by Diels-Alder click reaction with maleimide end-functionalized PMMA, PtBA, or PEG yielded final PS-g-PMMA, PS-g-PtBA or PS-g-PEG copolymers with regular grafts, respectively. Well-defined polymers were characterized by 1H NMR, gel permeation chromatography (GPC) and triple detection GPC.
Original language | English |
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Pages (from-to) | 1195-1200 |
Number of pages | 6 |
Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
Volume | 49 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 Mar 2011 |
Keywords
- azide-alkyne reaction
- click reaction
- Diels-Alder reaction
- double click reaction
- graft copolymers
- poly(ethylene glycol)
- poly(methyl methacrylate)
- poly(tert-butyl acrylate)
- polystyrene
- triple detection GPC