Paper Title:
Synthesis and Characterization of Thermoplastic Biomaterial Based on Acylated Chitosan Oligosaccharide
  Abstract

A series of acylated chitosan oligosaccharides (LCSOs) were synthesized by reacting chitosan oligosaccharide (CSO) with lauroyl chloride in methane sulfonic acid. The chemical structures of LCSOs were characterized by Fourier transform infrared. Differential scanning calorimetry (DSC) showed that LCSOs had two phase transitions during heating. Thermoplastic chitosan oligosaccharide (LCSO-4) has distinct melting temperature (Tm) at 64 °C and 110°C. X-ray diffraction (XRD) analyses indicated that the crystal structure of CSO was changed through acylation and had created new crystal domains of lauroyl side chains. New strong diffraction peaks were observed around 2θ values of 20.0°, 21.5° and 26.3° for thermoplastic acylated chitosan oligosaccharide (LCSO-4). The melting and crystallization properties of thermoplastic acylated chitosan oligosaccharide were observed by polarized optical microscope (POM).

  Info
Periodical
Chapter
Chapter 7: Functional Materials
Edited by
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages
1433-1436
DOI
10.4028/www.scientific.net/AMM.117-119.1433
Citation
F. H. Li, Y. Sun, S. X. Li, S. J. Ma, "Synthesis and Characterization of Thermoplastic Biomaterial Based on Acylated Chitosan Oligosaccharide", Applied Mechanics and Materials, Vols. 117-119, pp. 1433-1436, 2012
Online since
October 2011
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$32.00
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