Fig. 5From: Polymerization of a new thermo-responsive copolymer with N-vinylcaprolactam and its application in recyclable aqueous two-phase systems with another thermo-responsive polymerEffect of pH on the recovery of the two thermo-responsive polymers without salt. The recoveries were carried out at 38 °C for PN and 46 °C for PVBAmBack to article page