Anionic polymerization of 2-pyrrolidone was carried out with PPBC/KOH catalysis. The effects of PPBC/KOH mole ratio, KOH concentration and temperature on polymerization were investigated. It was observed that the highest rate of polymerization and maximum conversion were obtained when PPBC/KOH mole ratio was around 0.5. The maximum conversion and the highest viscosity were obtained when the concentration of KOH was 2 mole percent. It was also observed that while the rate of polymerization at 50℃ was higher than at 30℃ in the initial stage of polymerization, the conversion and viscosity decreased as polymerization time was extended. The rate of polymerization was determined by least square method.
PPBC/KOH 촉매작용을 이용한 2-pyrrolidono의 음이온중합에 있어서 PPBC/KOH 몰 비, KOH의 농도 및 온도가 중합에 미치는 영향을 조사하였다.
PPBC/KOH 몰 비가 0.5일 때 중합속도가 가장 빠르고 conversion도 가장 높았으며, 또 KOH의 농도는 2mole%일 때 가장 높은 conversion과 점도가 얻어졌다.
50℃에서의 중합은 30℃에서의 중합보다 초기반응속도는 빠르나, 시간이 경과할수록 conversion과 점도가 오히려 낮아지는 경향이 관찰되었다.
최소자승법으로 중합속도를 구하였다.