Fig. 9From: 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 (a) and KCl concentration (0.1–1.0 M) (b) on the partition of VB12. 100 mM KCl was used in a and pH 4.0 was used in bBack to article page