DETERGENTS AND THEIR PROPERTIES BEN HANKAMER ... - 2dx
DETERGENTS AND THEIR PROPERTIES BEN HANKAMER ... - 2dx
DETERGENTS AND THEIR PROPERTIES BEN HANKAMER ... - 2dx
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EFFECT OF CHAIN LENGTH ON CMC<br />
MALTOSIDES<br />
GLUCOSIDES<br />
1. CMC DECREASES WITH INCREASED<br />
CHAIN LENGTH<br />
CHAIN<br />
LENGTH<br />
C6<br />
CMC<br />
(mM)<br />
-<br />
AGG<br />
NO.<br />
-<br />
CHAIN<br />
LENGTH<br />
C6<br />
CMC<br />
(mM)<br />
250<br />
AGG<br />
NO.<br />
-<br />
2. CMC INCREASES WITH DESATURATION<br />
3. ADDITIVES THAT BREAK UP WATER<br />
STRUCTURE (EG. UREA) INCREASE CMC.<br />
C7<br />
C8<br />
-<br />
23.4<br />
-<br />
84<br />
C7<br />
C8<br />
79<br />
20-25<br />
-<br />
84<br />
4. LOW CMC DESIREABLE FOR REDUCED<br />
COST OF PURIFICATION<br />
C9<br />
C10<br />
-<br />
1.6<br />
-<br />
-<br />
C9<br />
C10<br />
6.5<br />
-<br />
-<br />
-<br />
5. HIGH CMC DESIRABLE FOR<br />
DETERGENT REMOVAL<br />
C11<br />
C12<br />
0.59<br />
0.1-0.6<br />
-<br />
98<br />
C11<br />
C12<br />
-<br />
0.13<br />
-<br />
200<br />
6. LONG CHAIN LENGTHS = PROTECTIVE<br />
BUT STERIC HINDRANCE IN 3D XTALS.<br />
EFFECT OF CHAIN LENGTH ON<br />
MALTOSIDE CMC<br />
EFFECT OF CHAIN LENGTH ON<br />
GLUCOSIDE CMC<br />
CMC (mM)<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
8 9 10 11 12<br />
CHAIN LENGTH<br />
CMC (mM)<br />
250<br />
200<br />
150<br />
100<br />
50<br />
0<br />
6 7 8 9 10 11 12<br />
CHAIN LENGTH<br />
BUT CMC DOES VARY: USEFUL TO DEFINE IT ACCURATELY
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