Crystallization on heating and complex phase behavior of alpha-cyclodextrin solutions (Articolo in rivista)

Type
Label
  • Crystallization on heating and complex phase behavior of alpha-cyclodextrin solutions (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Plazanet, M; Dean, M; Merlini, M; Huller, A; Emerich, H; Meneghini, C; Johnson, MR; Trommsdorff, HP (2006)
    Crystallization on heating and complex phase behavior of alpha-cyclodextrin solutions
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Plazanet, M; Dean, M; Merlini, M; Huller, A; Emerich, H; Meneghini, C; Johnson, MR; Trommsdorff, HP (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 125 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France; Univ Grenoble 1, CNRS, UMR 5588, Spectrometrie Phys Lab, F-38042 Grenoble, France; European Synchrotron Radiat Facil, F-38043 Grenoble, France; Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy; Univ Milan, I-20133 Milan, Italy; Univ Florence, LENS, I-50019 Sesto Fiorentino, Italy; Univ Roma La Sapienza, CNR, INFM, CRS Soft Matter, I-00185 Rome, Italy (literal)
Titolo
  • Crystallization on heating and complex phase behavior of alpha-cyclodextrin solutions (literal)
Abstract
  • Solutions composed of alpha-cyclodextrin (alpha-CD), water, and various methylpyridines, in particular, 4-methylpyridine (4MP), undergo reversible liquid-solid transitions upon heating, the crystalline solid phases undergoing further phase transformations at higher temperatures. This unusual behavior has been characterized by an ensemble of measurements, including solubility, differential scanning calorimetry, quasielastic neutron scattering, as well as x-ray powder diffraction. For the alpha-CD/4MP system five crystalline phases have been identified. The unit cell parameters and corresponding changes with temperature indicate a scenario for the crystallization process. A simple model is proposed that mimics the observed disorder-order transition. (c) 2006 American Institute of Physics. (literal)
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