Abstract
Infrared reflection–absorption spectra (IRAS) have been measured for monolayers of octadecyldimethylamine oxide (C 18DAO), dioctadecyldimethylammonium chloride (2C 18DAC) and their mixtures with arachidic acid and poly(acrylic acid) prepared by Langmuir–Blodgett (LB) technique on gold-evaporated glass slides. The spectra show that arachidic acid and C 18DAO or 2C 18DAC molecules form well-ordered monolayers with trans zigzag conformations. The order of the alkyl chain in C 18DAO is greatly increased upon the formation of the mixed LB film. The relative intensities of infrared bands due to CH 2 and CH 3 stretching modes of the hydrocarbon chains indicate that they are tilted with respect to the surface normal in the mixed LB films of arachidic acid and C 18DAO or 2C 18DAC. The hydrocarbon chains of C 18DAO and 2C 18DAC are disordered in the mixed LB films of poly(acrylic acid) and C 18DAO or 2C 18DAC.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
