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Optical activity measurements in solids 5. Optical rotation of natural polymers
Author(s) -
Bartuš Ján,
Vogl Otto
Publication year - 1994
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1994.210330104
Subject(s) - polymer , natural polymers , optical rotation , nucleic acid , solid state , specific rotation , suspension (topology) , materials science , rotation (mathematics) , polysaccharide , chemical engineering , polymer chemistry , polymer science , chemistry , composite material , organic chemistry , biochemistry , geometry , mathematics , homotopy , pure mathematics , engineering
The optical activity of ten natural‐type polymers [poly(α‐aminoacids), polysaccharides, proteins and nucleic acids] was measured in solution, as solid powders in suspension, and where possible in the form of films. In some cases the specific rotation of powder samples showed significant differences to the values obtained from solution measurements. The discrepances seem to reflect the arrangements of polymer chains in supermolecular assemblies in the polymer solid state.