In situ synthesis-gelation at room temperature vs. heating–cooling procedure. Fine tuning of molecular gels derived from succinic acid and L-valine
Impact
![Google Scholar](/xmlui/themes/Mirage2/images/uji/logo_google.png)
![Microsoft Academico](/xmlui/themes/Mirage2/images/uji/logo_microsoft.png)
Metadata
Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7053
comunitat-uji-handle3:10234/8639
comunitat-uji-handle4:
INVESTIGACIONThis resource is restricted
http://dx.doi.org/10.1016/j.jcis.2013.08.055 |
Metadata
Title
In situ synthesis-gelation at room temperature vs. heating–cooling procedure. Fine tuning of molecular gels derived from succinic acid and L-valineDate
2013-12Publisher
ElsevierBibliographic citation
FONTANILLO, Miriam, et al. In situ synthesis-gelation at room temperature vs. heating–cooling procedure. Fine tuning of molecular gels derived from succinic acid and L-valine. Journal of colloid and interface science, 2013, 412: 65-71.Type
info:eu-repo/semantics/articlePublisher version
http://www.sciencedirect.com/science/article/pii/S0021979713008217Subject
Abstract
Hypothesis
The reaction between succinic anhydride and a diamine derived from L-valine should afford efficiently a molecular gelator. Based on this reaction, it should be feasible to prepare molecular gels at room ... [+]
Hypothesis
The reaction between succinic anhydride and a diamine derived from L-valine should afford efficiently a molecular gelator. Based on this reaction, it should be feasible to prepare molecular gels at room temperature, avoiding the conventional thermal treatment required for the solubilization of the gelator, by in situ, simultaneous, synthesis and gelation. The gels prepared by in situ and conventional heating–cooling protocols could present important differences relevant for potential practical applications of these materials.
Experimental
The gelator was synthesized by reaction of succinic anhydride and a diamine derived from L-valine, affording two new amide bonds. The molecular gels were studied by IR, NMR, electron microscopy, X-ray diffraction and DSC.
Findings
The results indicate that different polymorphic fibrillar networks are formed depending on the gel preparation method, highlighting how the properties of molecular gels can be tuned in this way. Significant differences between thermal and in situ gels were found in properties such as thermal stability, thixotropic behavior or release of an entrapped dye. In situ synthesis-gelation has also been shown to provide gels in media such as oleic acid which cannot be jellified by conventional heating–cooling procedures. [-]
Is part of
Journal of Colloid and Interface Science Volume 412, 15 December 2013Rights
Copyright © 2014 Elsevier B.V.
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
This item appears in the folowing collection(s)
- QUIO_Articles [701]