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Electrospray ionization-mass spectrometry (ESI-MS) and proton nuclear magnetic resonance ( 1 H NMR) have been used to investigate the hydrolytic degradation of copolymers obtained by bulk ring-opening copolymerization of glycolide and ɛ-caprolactone with monomer ratios ranging from 70/30 to 30/70. NMR allows changes of the average sequence distribution and composition of the components to...
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