Radiation degradation of microcrystalline cellulose in solid status

Pulverization and degradation are important pretreatment procedures in producing bio‐ethanol from cellulose. In this study, microcrystalline cellulose (MCC), a pure α‐cellulose, was degraded by γ‐irradiation. The average degree of polymerization, content of reducing sugar, crystalline structure, and...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied polymer science 2013-02, Vol.127 (3), p.1630-1636
Main Authors: Sun, Jian, Xu, Ling, Ge, Mengyi, Zhai, Maolin
Format: Article
Language:English
Subjects:
Applied sciences
Cellulose
Cellulose and derivatives
Crystal structure
Degradation
Exact sciences and technology
Fourier transforms
Hydrogen bonds
Materials science
microcrystalline cellulose
Molecular structure
Natural polymers
Physicochemistry of polymers
Polymerization
Polymers
Polymers and radiations
radiation degradation
Reproduction
Sugars
γ-irradiation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Pulverization and degradation are important pretreatment procedures in producing bio‐ethanol from cellulose. In this study, microcrystalline cellulose (MCC), a pure α‐cellulose, was degraded by γ‐irradiation. The average degree of polymerization, content of reducing sugar, crystalline structure, and molecular structure were investigated to elucidate the radiation effect on the degradation of MCC. The results manifested that γ‐ray destroyed part of the chemical bond and hydrogen bond, leading to the degradation of cellulose and increasing of the reducing sugar content. According to the Fourier transform infrared result, radiation degradation led to the formation of reductive carbonyl group. Meanwhile, radiation had slight influence on the crystalline structures of MCC. Therefore, the radiation degradation procedure is expected to benefit the further proceedings such as ultrafine treatment and enzyme hydrolysis of cellulose. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
ISSN:0021-8995
1097-4628
DOI:10.1002/app.37544