TY - JOUR
T1 - Polyglycerol esters composition
T2 - Theoretical random distribution versus HPLC analysis
AU - Garti, N.
AU - Aserin, A.
PY - 1982/7
Y1 - 1982/7
N2 - Product composition of polyglycerol esters, prepared from a direct alkaline polymerization of glycerol followed by esterification with stearic or oleic acids, has been studied. The internal product composition, as analyzed by high performance liquid chromatography (HPLC), shows clearly that in contradiction to what has been published recently, the fatty acid radicals are not distributed at random among all available hydroxyl groups, and thus, any theoretical calculation on the product composition could not be correct. The product composition of the crude material indicates clearly that the internal positions (secondary hydroxyls) of the glycerol polymer are esterified with greater difficulty than the primary hydroxyl groups.
AB - Product composition of polyglycerol esters, prepared from a direct alkaline polymerization of glycerol followed by esterification with stearic or oleic acids, has been studied. The internal product composition, as analyzed by high performance liquid chromatography (HPLC), shows clearly that in contradiction to what has been published recently, the fatty acid radicals are not distributed at random among all available hydroxyl groups, and thus, any theoretical calculation on the product composition could not be correct. The product composition of the crude material indicates clearly that the internal positions (secondary hydroxyls) of the glycerol polymer are esterified with greater difficulty than the primary hydroxyl groups.
UR - http://www.scopus.com/inward/record.url?scp=51249183311&partnerID=8YFLogxK
U2 - 10.1007/BF02662235
DO - 10.1007/BF02662235
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AN - SCOPUS:51249183311
SN - 0003-021X
VL - 59
SP - 317
EP - 319
JO - Journal of the American Oil Chemists' Society
JF - Journal of the American Oil Chemists' Society
IS - 7
ER -