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Reactive & Functional Polymers, Vol.69, No.3, 145-150, 2009
Electrospun polystyrene fibers containing high tempetature stable volatile fragrance/flavor facilitated by cyclodextrin inclusion complexes
In this study, we report on electrospinning of functional polystyrene (PS) fibers containing cyclodextrin-menthol inclusion complexes (CD-menthol-ICs). Our goal is to develop functional electrospun fibers containing fragrances/flavors with enhanced durability and stability assisted by cyclodextrin inclusion complexation. We have used menthol as a model fragrance/flavor material and CD-menthol-ICs were incorporated in electrospun PS fiber by using three types of CDs: alpha-CD, beta-CD and gamma-CD. Due to complexation of menthol with CDs, we observed that the stabilization of menthol was achieved up to 350 degrees C for all the PS/CD-menthol-IC webs whereas the PS fibers without the CD complex could not preserve volatile menthol molecules. In addition, gamma-CD was more effective for the stabilization and release of menthol at a broad temperature range (100-350 degrees C) when compared to alpha-CD and beta-CD. This study suggested that the electrospun fibers functionalized with CD-ICs are very effective for enhancing the temperature stability of volatile fragrances/flavors and therefore show potentials for the development of functional fibrous materials. (C) 2008 Elsevier Ltd. All rights reserved.