Document Detail


Temperature dependent dendritic domain shapes in Langmuir monolayers of tetradecanoyl N-ethanolamide at the air-water interface.
MedLine Citation:
PMID:  20926093     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The effect of temperature on the surface phase behavior of tetradecanoyl N-ethanolamide (NHEA-14) in Langmuir monolayers at the air-water interface has been investigated by film balance and Brewster angle microscopy (BAM). It has been observed that dendritic domains are formed in the coexistence region between liquid-expanded (LE) and liquid-condensed (LC) phases at different temperatures. At 10 and 15°C, the domains are four-armed dendrites having wide arms which have a tendency to be fractal while growing in size. At 20°C, five-armed dendritic domains are formed. At a temperature higher than 20°C, the domains are mainly six-armed dendrites having very narrow and sharp arms. The formation of dendritic domains should be due to the presence of interfacial hydrogen bonding among the head groups of the amphiphile. Increased dehydration of the head groups with an increase in the temperature should be responsible for the temperature dependency of the dendritic domain shapes in the monolayers of NHEA-14.
Authors:
Md Mufazzal Hossain; Kenichi Iimura; Masaki Yoshida; Teiji Kato
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Publication Detail:
Type:  Journal Article     Date:  2010-09-18
Journal Detail:
Title:  Journal of colloid and interface science     Volume:  353     ISSN:  1095-7103     ISO Abbreviation:  J Colloid Interface Sci     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-10-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0043125     Medline TA:  J Colloid Interface Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  220-4     Citation Subset:  -    
Copyright Information:
Copyright © 2010 Elsevier Inc. All rights reserved.
Affiliation:
Department of Chemistry, University of Dhaka, Dhaka 1000, Bangladesh. mdmhossain@yahoo.com
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