Aleuritic (9,10,16-trihydroxypalmitic) acid self-assembly on mica

Aleuritic (9,10,16-trihydroxypalmitic) acid self-assembly on mica from solution has been studied using AFM, ATR-FTIR and MD simulations. The goal of this study is to define the role of hydroxyl groups in the interaction between molecules as reference data to understand the mechanism of formation of...

Full description

Saved in:
Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2010-09, Vol.12 (35), p.10423-10428
Main Authors: HEREDIA-GUERRERO, José Alejandro, SAN-MIGUEL, Miguel Angel, SANSOM, Mark S. P, HEREDIA, Antonio, BENITEZ, José Jesús
Format: Article
Language:English
Subjects:
Adsorption
Aluminum Silicates - chemistry
Atomic force microscopy
Chemistry
Esterification
Exact sciences and technology
Formations
Friction
General and physical chemistry
Hydroxides - chemistry
Mica
Molecular Conformation
Molecular Dynamics Simulation
Multilayers
Palmitic Acids - chemistry
Self assembly
Spectroscopy, Fourier Transform Infrared
Terminals
Three dimensional
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Aleuritic (9,10,16-trihydroxypalmitic) acid self-assembly on mica from solution has been studied using AFM, ATR-FTIR and MD simulations. The goal of this study is to define the role of hydroxyl groups in the interaction between molecules as reference data to understand the mechanism of formation of synthetic and natural biopolyesters from polyhydroxylated long chain carboxylic acids. In a confined structure, such as the one imposed by a vertically self-assembled layer on mica, aleuritic acid has a tendency to adopt a monolayer configuration ruled by the lateral interactions between molecules via the two secondary hydroxyl groups. This (2D) growth competes with the multilayer formation (3D), which is conditioned by the terminal primary hydroxyl group. As the self-assembly spatial constraint is relaxed, MD has shown that the structure tends to become an amorphous and crosslinked phase that can be characterized by topographic and friction force AFM data.
ISSN:1463-9076
1463-9084
DOI:10.1039/c0cp00163e