One-pot synthesis of ABC type triblock copolymers via in situ Click [3 + 2] and diels-alder [4 + 2] reactions

Hakan Durmaz, Aydan Dag, Ozcan Altintas, Tuba Erdogan, Gurkan Hizal, Umit Tunca

Research output: Contribution to journalArticlepeer-review

202 Scopus citations

Abstract

We report a one-pot synthesis of ABC triblock copolymers of poly(ethylene glycol)- (PEG-) polystyrene- (PS-) poly(methyl methacrylate) (PMMA), and poly(e-caprolactone)- (PCL-) PS-PMMA by combining in situ click [3 + 2] and Diels-Alder [4 + 2] reactions. For this purpose, furan-protected maleimide end-functionalized PMMA, PS with α-anthracene and ω-azide end-functionality, and PEG or PCL with an alkyne end-functional group were reacted in N,N-dimehtylformamide (DMF) for 36 h at 120°C in order to give the corresponding triblock copolymers. All polymeric precursors with narrow molecular weight distribution and well-defined chain-end functionalities were achieved from living polymerization methods, except PEG. The obtained polymers were characterized by 1H NMR (250 MHz), gel permeation chromatography (GPC), and differential scanning calorimetry (DSC) measurements.

Original languageEnglish (US)
Pages (from-to)191-198
Number of pages8
JournalMacromolecules
Volume40
Issue number2
DOIs
StatePublished - Jan 23 2007

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