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Synthesis and characterization of diethoxy phosphoryl chitosan.

Abstract：

:A novel diethoxy phosphoryl chitosan was successfully synthesized via Atherton-Todd reaction of chitosan with diethyl phosphite, and the characterization was carried out by FT IR, NMR, ICP, XRD, TG and SEM, respectively. The FT IR, (13)C NMR and (31)P NMR results showed that diethoxy phosphoryl group was grafted onto the amino group of chitosan. XRD indicated that the incorporation of diethoxy phosphoryl group into chitosan increased the crystalline structure of the polymer. TG demonstrated that diethoxy phosphoryl chitosan was more thermal stable than chitosan. This simple and efficient synthetic method provides a new approach to the preparation of N-phosphoryl chitosan derivatives. And this new derivative of chitosan will open new perspectives as bio-functional material.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Ma L,Li G,Li L,Liu P

doi

10.1016/j.ijbiomac.2010.06.014

subject

Has Abstract

pub_date

2010-11-01 00:00:00

pages

578-81

issue

4

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(10)00217-5

journal_volume

47

pub_type

杂志文章

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