A Study on the Synthesis of [RCOOH]-<TEX>$varepsilon$</TEX>-Caprolactam-Montmorillonite Intercalations-complex and its Isothermal Decomposition in High Vacuum

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J. Korean Ceram. Soc. > Volume 33(8); 1996 > Article

Journal of the Korean Ceramic Society 1996;33(8): 909.

[RCOOH]-$varepsilon$-Caprolactam-Montmorillonite 층간화합물의 합성과 고진공상태하에서의 등온 분해에 관한 연구

조성준

배재대학교 무기재료공학과

A Study on the Synthesis of [RCOOH]-$varepsilon$-Caprolactam-Montmorillonite Intercalations-complex and its Isothermal Decomposition in High Vacuum

ABSTRACT

In this research [RCOOH]-$varepsilon$-Caprolactam-Montmorillonite was synthesized by reaction between Na-Mont-morillonite (10-Carboxy-n-decyl)dimethylethylammonium (=RCCOH) ion and $varepsilon$-Caprolactame-Motmorillonite ob-tained was 3.62$AA$ After heat treatment of this intercalations complex at 37$^{circ}C$ in high vacuum for 12 h 24 h, 40 h and 90 h the basal spacing was reduced to 35.8$AA$, 34.2, 17.5 $AA$ and 16.6$AA$ respectively. The calculated amount of free $varepsilon$-caprolactame included int he intercaltions complex and that of $varepsilon$-caprolactame which is interca-lated into the interlayer space of montomorillonite and still remained after heat treatment are 4.6~4.9 and 0.5 molecules per unite cell of montmorillonite respectively.

Key words: (10-Carboxy-n-decyl)dimethylethylammonium ion, $\varepsilon$-caprolactame, Kinetics, Na-Montmorillonite, basal spacing