Solid state characterization of the structure of chitosan films
Tóm tắt
Films of chitosan, prepared by different fabrication processes, were examined at several structural levels, from the molecular to the macroscopic. This revealed the presence of polymorphic crystal forms, which varied with film treatment. Similarly, morphological structures varying from spherulites to rods were formed, depending on film processing conditions. The effect of structure on the mechanical properties, as well as the orientability of the films, were also investigated.
Từ khóa
Tài liệu tham khảo
Muzzarelli R. A. A., 1973, Natural Chelating Polymers
R. A. A.MuzzarelliandE. R.Pariser Proceedings of the First International Conference on Chitin/Chitosan MIT Sea Grant Report MITSG 78‐7 May 1978.
Bough W. A., 1977, Food Product Development, 11, 90
Samuels R. J., 1974, Structured Polymer Properties
Herman P. H., 1949, Physics and Chemistry of Cellulose Fibers
J. C.Seferis Department of Chemical Engineering University of Washington Seattle Washington measured these samples.
J.Blackwell R.Minke andK. H.Gardner Proceedings of the First International Conference on Chitin/Chitosan R. A. Muzzarelli and E. R. Pariser Ed. MIT Sea Grant 78‐7 May1978 p.108.
R. W.HarrellandL. E.Weyer Hercules Incorporated private communication.
Sadtler Standard Spectra Sadtler Research Laboratories Philadelphia PA 19104.
Hummel D. O., 1971, Infrared Analysis of Polymers, Resins, and Additives