RADIATION DEGRADATION OF POLYVINYL ALCOHOL EXPRESSED BY [η]=k(D+D<sub>0</sub>) <sup>-α</sup>

Feng Ying; Li Shuhua; Zhang Yan; Zhang Yiqun; Zhang Lihua; Zhang Zicheng; Cheng Xinfan; Yen Jiagui

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RADIATION DEGRADATION OF POLYVINYL ALCOHOL EXPRESSED BY [η]=k(D+D₀) ^-α

更新时间：2023-04-23

- RADIATION DEGRADATION OF POLYVINYL ALCOHOL EXPRESSED BY [η]=k(D+D₀) ^-α
- Journal of Radiation Research and Radiation Processing Vol. 4, Issue 3, Pages: 26-29(1986)
- 作者机构：
  
  1.中国科学院长春应用化学研究所
  2.吉林大学
- 作者简介：
- 基金信息：
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Feng Ying, Li Shuhua, Zhang Yan, et al. RADIATION DEGRADATION OF POLYVINYL ALCOHOL EXPRESSED BY [η]=k(D+D₀) ^-α. [J]. Journal of Radiation Research and Radiation Processing 4(3):26-29(1986)
DOI：

Feng Ying, Li Shuhua, Zhang Yan, et al. RADIATION DEGRADATION OF POLYVINYL ALCOHOL EXPRESSED BY [η]=k(D+D₀) ^-α. [J]. Journal of Radiation Research and Radiation Processing 4(3):26-29(1986) DOI：

摘要

本文探讨了用特性粘数与吸收剂量的关系式[η]=k（D+D,0,）,-α,表达聚乙烯醇的辐射裂解。（1）阐明了D,0,的求法。（2）证实了[η]=k（D + D,0,),-α,式中的α值与Mark-Houwink方程,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648462&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648479&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648478&type=,中的α'值是等同的。（3）将这二公式联立起来，求得裂解度（P,0,）和辐射裂解产额（G）。（4）由P,0,和D,0,反推聚乙烯醇的起始数均聚合度,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648480&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648482&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648481&type=,。

Abstract

Radiation degradation of polyvinyl alcohol (PVA) was shown by-reduced viscosity. Samples were irradiated with. ,60,Co ,γ, -rays and their viscosity was measured in distilled water at 30℃ to determine the reduced viscosity. The formula used to express the radiation degradstion was the simple relationship between the intrinsio viscosity and the absorbed dose,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648483&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648486&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648485&type=,The method of determination of D,0, was described. The ,α, value calculated from experimental data is identical to the value of ,α, in Mark-Houwink equation ,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648475&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648493&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648490&type=,. By correlating the two equations, the value of p,0, (fracture density) and G (main chain fracture) were calculated. The initial number average degree of polymerization ,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648495&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648497&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648496&type=, derived from the value of D,0, and p,0, is approaching to the value of ,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648508&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648510&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648499&type=, determined by viscometric method.

关键词

聚乙烯醇辐射裂解吸收剂量虚剂量特性粘数粘均分子量裂解度辐射裂解产额。

Keywords

Polyvinyl alcoholRadiation degradationAbsorbed doseVirtual doseIntrinsic viscosityViscosity average molecular weightFracture densityRadiation yield of main chain fracture

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RADIATION DEGRADATION OF POLYVINYL ALCOHOL EXPRESSED BY [η]=k(D+D0) -α

DOI：

摘要

Abstract

关键词

Keywords

references

RADIATION DEGRADATION OF POLYVINYL ALCOHOL EXPRESSED BY [η]=k(D+D₀) ^-α