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Mi-Kyeong Jang, Byeong-Gi Kong, Young-Il Jeong, Chang Hyung Lee and Jae-Woon Nah Physicochemical characterization of α-chitin, β-chitin, and γ-chitin separated from natural resources Journal of Polymer Science Part A: Polymer Chemistry 42

Version of Record online: 7 JUN 2004 | DOI: 10.1002/pola.20176

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Chitin separated from natural resources has three polymorphic crystalline structures: α, β, and γ. The physicochemical properties of chitin are differently presented according to these structures. The properties of α-chitin and β-chitin have been observed by many investigators, but those of γ-chitin, first proposed by Rudall et al., have not been revealed until now because of the unusual nature of the raw material. In this study, γ-chitin has been separated and characterized. Also, the properties of α-chitin and β-chitin have been compared with those of γ-chitin.

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