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Studies of multiple-chain alkylaminomethylp-cyanophenol derivatives for Langmuir-Blodgett films by K. A. Longstaff; D. A. Leigh; R. W. Munn is a Engineering article available to read on EtoBox.

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Langmuir films and Langmuir-Blodgett deposition have been studied for 2,6-dioctadecylaminomethyl-4-cyanophenol (CPR 2 R 2 ) and 2-dioctadecyl-aminomethyl-4-cyanophenol (CPR 2 ). Stable Langmuir films were obtainable for both compounds at high pH, but only for CPR 2 R 2 at low pH. Molecular modelling and semiempirical MNDO calculations suggest that high pH favours stability by disrupting intramolecular hydrogen bonding. X-ray diffraction on Y-type Langmuir-Blodgett films deposited on hydrophobic glass substrates gives layer spacings of about 56 A ̊for both compounds, indicating that the alkyl chains orient perpendicular to the substrate. Modelling and MNDO calculations suggest that analogous compounds with a single octadecyl chain on nitrogen could be stable at both low and high pH. \*

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Author

K. A. Longstaff; D. A. Leigh; R. W. Munn

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1616-301X)

Published

1997

Language

EN

Field

Engineering (Physical Sciences)