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Issue 35, 2010
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Aleuritic (9,10,16-trihydroxypalmitic) acid self-assembly on mica

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Abstract

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.

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

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Publication details

The article was received on 08 Apr 2010, accepted on 26 Apr 2010 and first published on 06 Jul 2010


Article type: Paper
DOI: 10.1039/C0CP00163E
Citation: Phys. Chem. Chem. Phys., 2010,12, 10423-10428
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    Aleuritic (9,10,16-trihydroxypalmitic) acid self-assembly on mica

    J. A. Heredia-Guerrero, M. A. San-Miguel, M. S. P. Sansom, A. Heredia and J. J. Benítez, Phys. Chem. Chem. Phys., 2010, 12, 10423
    DOI: 10.1039/C0CP00163E

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