Insight into the effect of methylated urea on the phase transition of aqueous solutions of poly(N-isopropylacrylamide) by microcalorimetry: Hydrogen bonding and van der Waals interactions

Insight into the effect of methylated urea on the phase transition of aqueous solutions of poly(N-isopropylacrylamide) by microcalorimetry: Hydrogen bonding and van der Waals interactions