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Time-dependent FTIR Spectra of Poly(NIPAAm-co-Dimethyl-γ-Butyrolactone) 7.2 mol. % Dimethyl-γ-Butyrolactone Content. 1: Before Hydrolysis, 2: 1 day Hydrolysis, 3: 7 days Hydrolysis, 4: 14 days Hydrolysis, 5: 18 days Hydrolysis, 6: 22 days Hydrolysis
