Document Type

Article

Language

eng

Publication Date

2014

Publisher

Hindawi Publishing Corporation

Source Publication

Advances in Physical Chemistry

Source ISSN

1687-7985

Abstract

Nanodimensional layered metal hydroxides such as layered double hydroxides (LDHs) and hydroxy double salts (HDSs) can undergo anion exchange reactions releasing intercalated anions. Because of this, these metal hydroxides have found applications in controlled release delivery of bioactive species such as drugs and pesticides. In this work, isomers of hydroxycinnamate were used as model compounds to systematically explore the effects of anion structure on the rate and extent of anion release in HDSs. Following intercalation and subsequent release of the isomers, it has been demonstrated that the nature and position of substituent groups on intercalated anions have profound effects on the rate and extent of release.The extent of release was correlated with the magnitude of dipole moments while the rate of reaction showed strong dependence on the extent of hydrogen bonding within the layers.The orthoisomer showed a more sustained and complete release as compared to the other isomers.

Comments

Published version. Advances in Physical Chemistry, Volume 2014, Article ID 710487 (2014): 1-12. DOI. © 2014 Stephen Majoni and Jeanne M. Hossenlopp. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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Chemistry Commons

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