A study of domain structure in segmented polyether polyurethaneureas by PAT

Chuanyuan Yin; Weizheng Xu; Qingchao Gu

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A study of domain structure in segmented polyether polyurethaneureas by PAT

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- A study of domain structure in segmented polyether polyurethaneureas by PAT
- Nuclear Techniques Vol. 13, Issue 6, (1990)
- 作者机构：
  
  南京大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：12 September 1988，
  
  Published：01 June 1990
- 稿件说明：
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Chuanyuan Yin, Weizheng Xu, Qingchao Gu. A study of domain structure in segmented polyether polyurethaneureas by PAT[J]. Nuclear techniques, 1990, 13(6): 343-346.
DOI：

Chuanyuan Yin, Weizheng Xu, Qingchao Gu. A study of domain structure in segmented polyether polyurethaneureas by PAT[J]. Nuclear techniques, 1990, 13(6): 343-346. DOI：

摘要

本文用正电子湮没、小角X射线散射和差示扫描量热等方法研究多嵌段聚醚氨酯脲的微畴结构。实验结果表明，硬段含量的增加引起微畴体积和自由体积减小，而软段分子量增加引起微畴体积和自由体积增大。

Abstract

The domain structure of segmented polyether polyurethaneureas is investigated by means of positron annihilation technique

small angle X-ray scattering and differential scanning calcrimetry. The experimental results show that the decrease of domain volume and free volume results from the increase of hard segment contents

and that the increase of domain volume and free volume results from the increase of molecular weight of soft segments.

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references

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J. R. Stevens , Methods of experiment physics, Vol.16, A. Polymers. Academic Press , New York , 1980 .

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高原淳等，高分子论文集， 39 （ 1982 ）, 41 : 203 。

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G. M. Wang et al . , Nucl. Instr. Meth . , 14 （ 1986 ）, 555 .

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