poly(vinylpyrrolidone) in ethylene glycol mixt. was heated under reflux (190°C) for 15-20 min; centrifugation, washing with water and EtOH, drying at 80°C;
参考文献
Izu, Noriya; Matsubara, Ichiro; Itoh, Toshio; Shin, Woosuck; Nishibori, Maiko
Bulletin of the Chemical Society of Japan, 2008 , vol. 81, # 6 p. 761 - 766