Journal of the Korean Wood Science and Technology
- Volume 27 Issue 1
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- Pages.18-23
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- 1999
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- 1017-0715(pISSN)
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- 2233-7180(eISSN)
Formation Conditions of Na-cellulose II with Three Fold Helix
3회나선축을 갖는 Na-cellulose II의 형성조건에 관한 고찰
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Kim, Nam-Hun
(College of Forest Sciences, Kangwon National University) ;
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Lee, Myoung-Ku
(College of Forest Sciences, Kangwon National University)
- Received : 1998.06.10
- Published : 1999.03.30
Abstract
The formation conditions of Na-cellulose II with three fold helix were investigated by an x-ray diffraction method. Na-cellulose II was formed through Na-cellulose I. It seems that the concentration of sodium hydroxide in Na-cellulose II is higher than both those of Na-cellulose I and Na-cellulose III. Na-cellulose II was formed well by different rinsing and drying methods even though the sample treatment was carried out in very short periods of time. Metal-complexed Na-cellulose swollen in the mixture of
3회축을 갖는 Na-cellulose II의 형성조건을 X선회절법을 이용하여 검토하였다. 그 결과 Na-cellulose II는 Na-cellulose I 을 거쳐서 형성되며 결정중의 알칼리농도가 Na-cellulose I 이나 III보다 높은 조건에서 형성되는 것으로 생각되었다. 2회축에서 3회축으로의 섬유주기의 급격한 변화는 알칼리 처리 후의 수분제거방법에 의해 크게 영향받는 것으로 생각되었다. 동(銅)-알칼리셀룰로오스 복합체의 결정은 팽윤상태에서 안정된 구조를 가지며 건조에 의해 결정구조가 변화되었다.
Keywords
- Cellulose I;
- Na-cellulose I;
- Na-cellulose II;
- Na-cellulose III;
- three fold helix;
- metal-complexed Na-cellulose