One-pot synthesis of cyclopentadienyl endcapped poly(2-ethyl-2-oxazoline) and subsequent ambient temperature Diels–Alder conjugations
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Glassner, Mathias; Kempe, Kristian; Schubert, Ulrich S.; Hoogenboom, Richard; Barner-Kowollik, Christopher
- Abstract:
- An efficient method for the preparation of cyclopentadienyl endcapped poly(2-ethyl-2-oxazoline) (PEtOx–Cp) via cationic ring-opening polymerization utilizing sodium cyclopentadienide as a termination agent is presented. Subsequent Diels–Alder reactions with N-substituted maleimides proceed quantitatively at ambient temperature. A block copolymer (PEtOx-b-PEG) is prepared employing maleimide terminated poly(ethylene glycol).
- Year:
- 2011
- Type of Publication:
- Article
- Journal:
- Chemical Communications
- Volume:
- 47
- Pages:
- 10620 - 20622