TDI (Toluene Diisocyanate)/KOH 촉매작용에 의한 2-pyrrolidone의 음이온 중합에 있어서 TDI / KOH 몰비율, KOH의 농도, 온도 및 시간이 중합에 미치는 영향을 조사하였다. TDI / KOH 몰비율이 0.25일 때 중합속도가 가장 빠르고 전환율도 높았으며, 또 KOH의 농도가 5몰퍼센트일 때 가장 높은 전환율과 점도가 얻어졌다. 중합온도는 $30^{circ}C$인 경우가 $50^{circ}C$에 비해 전환율이 높았으며 점도도 높았다. 최소자승법으로 계산하여 구한 중합속도상수($k_p$)의 값은 $30^{circ}C$일 때 $57.53 {ell}/mole{cdot}min$였고, $50^{circ}C$일 때 $52.36{ell}/mole{cdot}min$였다.
Anionic polymerization of 2-pyrrolidone was carried out by TDI (Toluene Diisocyanate)/KOH catalysis. The effects of TDI / KOH mole ratio, KOH concentration, temperature and time on polymerization were investigated. It was observed that the highest rate of polymerization and maximum conversion were obtained when TDI / KOH mole ratio was about 0.25. The maximum conversion and the highest viscosity were obtained when the concentration of KOH was 5 mole percent. It was also found that the rate of polymerization and inherent viscosity at $30^{circ}C$ were higher than those at $50^{circ}C$. The rate constant ($k_p$) of polymerization was determined by least square method; the values of kp obtained were $57.53{ell}/mole{cdot}min;at;30^{circ}C$ and $52.36{ell}/mole{cdot}min;at;50^{circ}C$, respectively.
