Monoacylglycerol and fatty acid monolayers at the air-water interface

被引：0
|
作者：
Szelag, Halina [1 ]
Szyszko, Agnieszka [1 ]
机构：
[1] Politechn Gdansk, Katedra Technol Tluszczow & Detergentow, Wydzial Chem, PL-80952 Gdansk, Poland
来源：
PRZEMYSL CHEMICZNY | 2006年 / 85卷 / 8-9期
关键词：
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effect of monolauroylglycerol (MAG) and (9:1, 7:3 or 1:1) MAG-lauric acid mixts. on Langmuir monolayers stabilized for 15 min at the air-water interface was examd. at 25, 35, and 45 degrees C, and compressed with barriers moved at 15 mm/min. Surface pressure vs. area isotherms were detd. to evaluate the mol. area, collapse pressure, and elasticity modulus (E) in relation to temp. and MAG-lauric acid mole ratio. The area accessible to each mol. and the collapse pressure fell as temp. was raised. For MAG and its mixts. over 25-45 degrees C, Delta Pi(coll) were resp. 19 and 5 mN/m, regardless of the mole ratio. At Delta T=20 degrees C, Delta E was 12 and 3 mN/m for MAG and for the (1:1) mixt., resp.
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页码：1356 / 1358
页数：3
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