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Dynamics of Aromatic Molecules Clathrated in Crystalline Syndiotactic Polystyrene: A Solid State 2 H NMR Investigation of the Host/Guest Complexes
Author(s) -
Trezza Elena,
Grassi Alfonso
Publication year - 2002
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20020301)23:4<260::aid-marc260>3.0.co;2-p
Subject(s) - polystyrene , tacticity , benzene , molecule , toluene , materials science , nuclear magnetic resonance spectroscopy , rotation (mathematics) , carbon 13 nmr , crystallography , polymer chemistry , chemistry , polymer , organic chemistry , polymerization , geometry , mathematics
Syndiotactic polystyrene clathrates hosting benzene‐ d 6 or toluene‐ d 8 molecules in the cavities of the δ crystalline form have been prepared and investigated by means of solid state 2 H NMR spectroscopy. Benzene‐ d 6 molecules were found to be involved in a fast rotation about the C 6 symmetry axis whereas the toluene‐ d 8 molecules exhibit a fast rotation of the methyl group about the symmetry axis passing through the C 1 and C 4 carbon atoms.