Abstract

Inclusion complexation of beta-chitin with linear aliphatic amines was studied by X-ray diffraction. All tested amines, C3 to C8 monoamines and C2 to C7 diamines with terminal amino groups, reversibly formed crystalline complexes with beta-chitin by immersion of dry chitin in pure liquid. Complex formation caused linear increase in the 010 sheet spacing of beta-chitin depending on the carbon number of amine. The complexes could be classified as type I and type II according to the increment of sheet spacing against carbon number. All monoamines formed type II complexes. In dry conditions, diamine formed a type I complex though the type of diamine complex differed for guest species in wet conditions. Based on the unit cell dimension and thermogravimetry, type II and type I are likely to correspond to guest-host (amine-chitobiose) ratios of 2:1 and 1:1, respectively. These differences seem to arise from varied interactions between functional groups of chitin and amines.

Keywords

ChitinChemistryDiamineAmine gas treatingEthylenediaminePolymer chemistryOrganic chemistryChitosan

MeSH Terms

AminesBiopolymersChitinModelsMolecularTemperatureThermogravimetryX-Ray Diffraction

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Publication Info

Year
2003
Type
article
Volume
4
Issue
4
Pages
944-949
Citations
48
Access
Closed

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Cite This

Yasutomo Noishiki, Yoshiharu Nishiyama, Masahisa Wada et al. (2003). Inclusion Complex of β-Chitin and Aliphatic Amines. Biomacromolecules , 4 (4) , 944-949. https://doi.org/10.1021/bm034024k

Identifiers

DOI
10.1021/bm034024k
PMID
12857077

Data Quality

Data completeness: 81%