Determination of molecular weight in polyvinylmethylsiloxane by positron annihilation

Chuanyuan Yin; Caihua Zhou; Dexun Shen; Minkang Teng

您当前的位置：

首页 >

文章列表页 >

Determination of molecular weight in polyvinylmethylsiloxane by positron annihilation

更新时间：2022-08-16

- Determination of molecular weight in polyvinylmethylsiloxane by positron annihilation
- Nuclear Techniques Vol. 11, Issue 2, (1988)
- 作者机构：
  
  南京大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：03 April 1987，
  
  Published：1988-02
- 稿件说明：
移动端阅览
Chuanyuan Yin, Caihua Zhou, Dexun Shen, et al. Determination of molecular weight in polyvinylmethylsiloxane by positron annihilation[J]. Nuclear techniques, 1988, 11(2): 34-37,62,63.
DOI：

Chuanyuan Yin, Caihua Zhou, Dexun Shen, et al. Determination of molecular weight in polyvinylmethylsiloxane by positron annihilation[J]. Nuclear techniques, 1988, 11(2): 34-37,62,63. DOI：

摘要

根据S. Y. Chuang等人的假定，简单地导出了硅橡胶中正电子湮没寿命和重均分子量之间的线性关系。用生胶材料作正电子湮没实验，实验结果表明正电子湮没寿命和重均分子量之间确有线性关系。用此线性关系测定生胶的重均分子量，并将测定的结果与用粘度法测定的结果相比较，两者相对偏差小于3.7%。

本文还对用正电子湮没技术测定的重均分子量的结果作了讨论，提出了用该方法测定生胶的分子量有一定的实用价值。

Abstract

In this paper a linear relation between the life time of positron annihilation and molecular weight of weight average in polyvinylmethylsiloxane is simply deduced according to S. Y. Chuang's hypothesis. The experiment results with polyvinylmethylsiloxane show that there is a linear relation between the life time of positron annihilation and molecular weight of weight average. The molecular weight of the polyvinylmethylsiloxane is determined by this linear relation. The result is compared with other results obtained by the viscosimetry method. The difference between them is less than 3.7%.

This paper also discusses the experimental results and the authors put forward the method to determine molecular weight.

关键词

Keywords

references

S. Y. Chuang and S. J. Tao , J. Appl. Phys. , 44 ( 1973 ), 5171 .

潘鉴元等，高分子物理，广东科技出版社， 1981 年，第57页。

何曼君等，高分子物理，复旦大学出版社，上海， 1983 年，第118页。

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Application of positron annihilation to study the effect of calcium oxide addition on the sintering process of alumina nanoceramics

Positron annihilation study on defect repair of pure iron and RPV steel under electropulsing treatment

Study on the microstructure and defects of Al₂O₃/ZrO₂ nano-composites by positron lifetime spectroscopy

Microstructures of the phase transition of nano-magnesium hydroxide to nano-magnesium oxide by positron annihilation lifetime spectroscopy

Application of nuclear track membrane in tea filtration

Related Author

YANG Xuanye

ZHAO Wenzheng

ZHANG Simin

WEN Haiyi

WU Yichu

WEN Haiyi

YANG Xuanye

ZHAO Wenzeng

Related Institution

School of Physics and Technology, Hubei Key Laboratory of Nuclear Solid State Physics, Wuhan University

Suzhou Nuclear Power Research Institute

School of Physics and Technology, Hubei Key Laboratory of Nuclear Solid State Physics, Wuhan University

School of Physics and Technology, National Demonstration Center for Experimental Physics Education(Wuhan University), Hubei Nuclear Solid Physics Key Laboratory, Wuhan University

Institute of Modern Physics, Chinese Academy of Sciences

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：880647 Visits Today：174

⁰