Radiation degradation of chitosan

FANG Yue’e  ZENG Kunwei  WANG Hengdong

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Radiation degradation of chitosan

更新时间：2021-03-12

- Radiation degradation of chitosan
- NUCLEAR TECHNIQUES Issue 10, (2001)
- 作者机构：
  
  1. 中国科学技术大学应用化学系
  2. 上海电缆厂
  4. ,上海,200093
- 作者简介：
- 基金信息：
- DOI：
  CLC： O636
- Published：01 October 2001
- 稿件说明：
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[1]方月娥,曾坤伟,王衡东,周日生,黄晓明.甲壳胺的辐射降解[J].核技术,2001(10):853-856.

FANG Yue’e ZENG Kunwei WANG Hengdong. Radiation degradation of chitosan[J]. Nuclear techniques, 2001, (10): 853-856.
[1]方月娥,曾坤伟,王衡东,周日生,黄晓明.甲壳胺的辐射降解[J].核技术,2001(10):853-856. DOI：

FANG Yue’e ZENG Kunwei WANG Hengdong. Radiation degradation of chitosan[J]. Nuclear techniques, 2001, (10): 853-856. DOI：

摘要

研究了甲壳胺的辐射降解效应

发现γ射线辐照使甲壳胺（固态）分子量降低

其裂解G（S）值为 0 .5 7（inN2 ）和 0 .75 （inair）

当吸收剂量为 184 .1kGy时

分子量从 1.0 7× 10 6分别降为1.72× 10 5和 1.16× 10 5;使用高能电子束辐照

吸收剂量为 2 0 0kGy时

甲壳胺的分子量由 1.14×10 6降为 7.67× 10 4

其裂解G（S）值为 1.0 2 （inair）。

Abstract

The degradation of solid-state chitosan was studied by γ-ray irradiation. The experimental results demonstrated that if the absorber dose was 184.1 kGy the molecular weight decreased from 1.07×10 6 to 1.16×10 5 (in air) and 1.72×10 5 (in N 2)

and the values of G (S) were 0.75 and 0.57 respectively. Another degradation process by the electron beam irradiation was also investigated. If the absorber dose was 200 kGy the molecular weight decreased from 1.14×10 6 to 7.67×10 4

and the value of G (S) was determined to be 1.02 (in air).

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