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Comment published on 14 January 2016, see Molecules 2016, 21(1), 93.

Open AccessArticle
Molecules 2015, 20(3), 3565-3581; doi:10.3390/molecules20033565

Divinyl Sulfone Cross-Linked Cyclodextrin-Based Polymeric Materials: Synthesis and Applications as Sorbents and Encapsulating Agents

1
Departamento de Química Orgánica, Facultad de Ciencias, Instituto de Biotecnología, Universidad de Granada, E1871 Granada, Spain
2
Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt
*
Authors to whom correspondence should be addressed.
Academic Editor: Eduardo Sobarzo-Sánchez
Received: 18 November 2014 / Accepted: 13 February 2015 / Published: 19 February 2015
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Abstract

The aim of this study was to evaluate the crosslinking abilities of divinyl sulfone (DVS) for the preparation of novel water-insoluble cyclodextrin-based polymers (CDPs) capable of forming inclusion complexes with different guest molecules. Reaction of DVS with native α-cyclodextrin (α-CD), β-cyclodextrin (β-CD) and/or starch generates a variety of homo- and hetero-CDPs with different degrees of crosslinking as a function of the reactants’ stoichiometric ratio. The novel materials were characterized by powder X-ray diffraction, electron microscopy and for their sorption of phenol and 4-nitrophenol. They were further evaluated as sorbents with phenolic pollutants (bisphenol A and β-naphthol) and bioactive compounds (the hormone progesterone and curcumin). Data obtained from the inclusion experiments show that the degree of cross-linking has a minor influence on the yield of inclusion complex formation and highlight the important role of the CDs, supporting a sorption process based on the formation of inclusion complexes. In general, the inclusion processes are better described by a Freundlich isotherm although an important number of them can also be fitted to the Langmuir isotherm with R2 ≥ 0.9, suggesting a sorption onto a monolayer of homogeneous sites. View Full-Text
Keywords: cyclodextrins; divinyl sulfone; sorbents, encapsulating agents; phenols; curcumin cyclodextrins; divinyl sulfone; sorbents, encapsulating agents; phenols; curcumin
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MDPI and ACS Style

Morales-Sanfrutos, J.; Lopez-Jaramillo, F.J.; Elremaily, M.A.A.; Hernández-Mateo, F.; Santoyo-Gonzalez, F. Divinyl Sulfone Cross-Linked Cyclodextrin-Based Polymeric Materials: Synthesis and Applications as Sorbents and Encapsulating Agents. Molecules 2015, 20, 3565-3581.

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