Miktoarm star copolymers of poly(ϵ‐caprolactone) from a novel heterofunctional initiator |
| |
| Authors: | Dimitrios Priftis Marinos Pitsikalis Nikos Hadjichristidis |
| |
| Institution: | 1. Department of Chemistry, University of Athens, 15771 Panepistimiopolis Zografou, Athens, Greece;2. Department of Chemistry, University of Athens, 15771 Panepistimiopolis Zografou, Athens, GreeceDepartment of Chemistry, University of Athens, 15771 Panepistimiopolis Zografou, Athens, Greece |
| |
| Abstract: | A novel heterofunctional initiator, synthesized from pentaerythritol in a three step reaction sequence with two ring opening polymerization (ROP) and two atom transfer radical polymerization (ATRP) initiating sites, was used to prepare A2B2 miktoarm star copolymers of poly(ε‐caprolactone), PεCL, with polystyrene, PS, poly(methyl methacrylate), PMMA, poly(dimethylaminoethyl methacrylate), PDMAEMA, and poly(2‐hydroxyethyl methacrylate), PHEMA. A2B miktoarm stars, A being PεCL or poly(δ‐valerolactone), PδVL and B PS were also prepared from ω,ω‐dihydroxy‐PS, synthesized from ω‐Br‐PS and serinol, by ROP of εCL or δVL. All polymers were characterized by size exclusion chromatography, 1H NMR spectroscopy, and membrane osmometry. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 5164–5181, 2007 |
| |
| Keywords: | atom transfer radical polymerization heterofunctional initiator miktoarm stars polyesters ring opening polymerization |
|
|
