Fig. 2From: 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 a temperature and b concentration of AIBN on Mv of PVBAm and PN; The polymerization reaction was carried out for 24 h at a shaking speed of 120 rpm. PVBAm was polymerized with an NVCL/BMA/Am monomer ratio: 5:0.5:0.2. Mv was measured at 25 °C. In a 4% (w/w) AIBN was used as the initiator; in b the reaction was carried out at 65 °CBack to article page