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Effect of solution plasma process with bubbling gas on physicochemical properties of chitosan.

Abstract：

:In the present work, solution plasma process (SPP) with bubbling gas was used to prepare oligochitosan. The effect of SPP irradiation with bubbling gas on the degradation of chitosan was evaluated by the intrinsic viscosity reduction rate and the degradation kinetic. The formation of OH radical was studied. Changes of the physicochemical properties of chitosan were measured by scanning electron microscopy, X-ray diffraction, and thermogravimetric analysis, as well as ultraviolet-visible, Fourier-transform infrared, and 13C nuclear magnetic resonance spectroscopy. The results indicated an obvious decrease in the intrinsic viscosity reduction rate after SPP irradiation with bubbling gas, and that the rate with bubbling was higher than that without. The main chemical structure of chitosan remained intact after irradiation, but changes in the morphology, crystallinity, and thermal stability of oligochitosan were observed. In particular, the crystallinity and thermal stability tended to decrease. The present study indicated that SPP can be effectively used for the degradation of chitosan.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Ma F,Li P,Zhang B,Zhao X,Fu Q,Wang Z,Gu C

doi

10.1016/j.ijbiomac.2017.01.049

subject

Has Abstract

pub_date

2017-05-01 00:00:00

pages

201-207

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(16)31408-8

journal_volume

98

pub_type

杂志文章

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