Die Makromolekulare Chemie · 1986 · 33 citations · 8 references
Natural SciencesChemistryMaterials ScienceOrganic ChemistryPolymer ChemistryPolymer MaterialsIonic PolymersPolymer AnalysisPolymer CharacterizationPolymer StructurePolymerization ChemistryPolymerization ProcessesBlock CopolymerizationCopolymer Composition AnalysisCopolymerizationCopolymerization BehaviorCopolymerization StrategiesPolymer Copolymer Composition AnalysisPolymer Molecular CharacteristicsViscosity
Abstract The zwitterionic copolymerization of 2‐methyl‐2‐oxazoline (MOX) as nucleophilic monomer with β‐butyrolactone (BUL) as electrophilic monomer was investigated in bulk and in solution (CH 3 CN) at 45°C. The copolymer composition was around 1,5/1,0 (BUL/MOX) as was established by 1 H NMR. 1 H and 13 C NMR spectroscopy were used to identify the copolymers. The IR spectroscopy supported the NMR results. On the other hand, the copolymers behave as polyelectrolytes, according to viscosity determinations. A copolymerization mechanism through a zwitterion species is suggested.
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