ISSN:
1435-1536
Keywords:
IR
;
ultrathin films
;
LB films
;
amphiphilic polymer
;
microgel
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Molecular orientation and structure in five-monolayer Langmuir-Blodgett (LB) films of an amphiphilic polymer consisting of a flexible hydrophilic epichlorohydrinethylene diamine cross-linking microgels and a number of hydrophobic chains have been studied by infrared (IR) transmission and reflection-absorption (RA) spectroscopy. The downward shifts of the NH and C=O stretching bands show that the amide groups are involved in medium hydrogen bonds. A comparison of the band intensities between the transmission and RA spectra indicates that the hydrocarbon chains are nearly perpendicular to the substrate surface while the C-N bond of the amide group is nearly parallel to the surface. The vibrational frequencies of the two CH2 stretching bands suggest that the LB films have highly ordered alkyl chains.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01189509
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