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Synthesis of phosphorylated chitosan by novel method and its characterization.

Abstract：

:Chitosan a natural based polymer is non-toxic, biocompatible and biodegradable. Chemical modification of chitosan to generate new bifunctional materials and finally would bring new properties depending on the nature of the group introduced. In our present study, we prepared phosphorylated chitosan (P-chitosan) by using H(3)PO(4)/P(2)O(5)/Et(3)PO(4)/hexanol method. From our present method, we got high yield and high degree of substitution (DS). The prepared P-chitosan (DS-1.18) was characterized by FT IR, (13)C NMR, (31)P NMR, elemental, XRD, TGA, DTA and SEM studies. After the phosphorylation, the solubility of the polymer was improved. The P-chitosan showed less thermal stability and crystallinity than the chitosan. It was due to the phosphorylation.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Jayakumar R,Nagahama H,Furuike T,Tamura H

doi

10.1016/j.ijbiomac.2007.12.011

subject

Has Abstract

pub_date

2008-05-01 00:00:00

pages

335-9

issue

4

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(08)00005-6

journal_volume

42

pub_type

杂志文章

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