Abstract
In this paper a new method for the functionalization of porous membranes with β-CD is reported. Porous polypropylene (PP) hollow fibres have been impregnated with a mixture composed by a partially cross-linked polydimethylsiloxane (PDMS) and β-cyclodextrin (β-CD). The prepolymerization of the PDMS components was necessary to avoid their inclusion in the β-CD cavity. The firm heterogenization of the β-CD was obtained by in situ cross-linking of the PDMS/β-CD network in the porous membranes.
The presence of the PDMS/β-CD network in the membranes was confirmed by FT-IR-ATR (on the outer and inner surfaces) and EDX analyses (on the cross-section).The effect of the impregnation times on membrane morphology, loading and porosity has been investigated.
The binding capacity of the heterogenized β-CDs has been tested using the phenolphthalein as guest molecule.
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Financial support from the “Ministero dell’Istruzione dell’Università e della Ricerca” (MIUR) (Center of Excellence CEMIF.CAL-CLAB01TYEF and FIRB CAMERE-RBNE03JCR5) is gratefully acknowledged.
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Fontananova, E., Di Profio, G., Curcio, E. et al. Functionalization of polymeric membranes by impregnation and in situ cross-linking of a PDMS/β-cyclodextrin network. J Incl Phenom Macrocycl Chem 57, 537–543 (2007). https://doi.org/10.1007/s10847-006-9246-3
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DOI: https://doi.org/10.1007/s10847-006-9246-3