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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 21, Number 6
JKCSEZ 21(6)
December 20, 1977 

 
Title
Anionic Polymerization of ε-Caprolactam via CS2 / KOH Catalysis (Ⅲ)

CS2 / KOH Catalysis에 의한 ε-Caprolactam의 음이온 중합 (제3보)
Author
Myeong-Seo Koo, Sam Kwon Choi

구명서, 최삼권
Keywords
Abstract
CS2/KOH catalysis를 이용해서 ε-caprolactam의 음이온중합을 시키고 percent conversion과 점도를 측정하였다. 80℃, 105℃의 비교적 낮은 온도에서는 CS2/KOH mole ratio가 0.5일때 percent conversion이 가장 높았으며 또 KOH의 당량에 비례하여 percent conversion도 증가하였다. 그러나 130℃, 155℃로 중합온도를 상승함에 따라 CS2/KOH mole ratio와 KOH양에는 크게 관계없이 높은 percent conversion을 얻을 수 있었다. 그리고 30분 정도의 짧은 중합시간으로도 80% 이상의 높은 percent conversion을 얻을 수 있었다.

The anionic polymerization of ε-caprolactam via CS2/KOH catalysis was carried out under various conditions. The inherent viscosity of the polymers and percent conversion of the polymers were determined. It was observed that the percent conversion was increased as an increasing concentration of catalyst and initiator. The percent conversion was relatively low at low temperature and the highest percent conversion was obtained at temperature between 130℃ to 155℃ with any CS2/KOH mole ratio.

Page
440 - 444
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