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| 正电子湮没技术在聚合物中的应用 | |
| 引用本文： | 姚献东,赵益汝,季根忠,孙旭东,王天民,齐陈泽.正电子湮没技术在聚合物中的应用[J].工程塑料应用,2003,31(11):39-42. |
| 作者姓名： | 姚献东 赵益汝 季根忠 孙旭东 王天民 齐陈泽 |
| 作者单位： | 1. 绍兴文理学院应用化学研究所,绍兴,312000 2. 绍兴文理学院应用化学研究所,绍兴,312000;中科院兰州化学物理研究所固体润滑国家重点实验室,兰州,730000 3. 北京航空航天大学理学院,北京,100082 |
| 基金项目： | 浙江省自然科学基金项目(RC01050,501066) |
| 摘 要： | 介绍正电子湮没技术的实验方法、谱图解析方法，概述近几年该技术在聚合物领域的应用和研究进展。实验结果证明，正电子湮没技术是一种先进的材料微观结构—自由体积的探测和表征技术。同时，提出该技术在聚合物研究中使用测量参数o—ps强度I3计算自由体积分数所存在的问题。 |
| 关 键 词： | 正电子湮没寿命谱 正电子素 自由体积 聚合物 |
| 修稿时间： | 2003年8月6日 |
APPLICATION OF POSITRON ANNIHILATION TECHNIQUE IN THE FIELD OF POLYMER |
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| Yao Xiandong,Zhao Yiru,Ji Genzhong,Sun Xudong,Wang Tianmin,Qi Chenze.APPLICATION OF POSITRON ANNIHILATION TECHNIQUE IN THE FIELD OF POLYMER[J].Engineering Plastics Application,2003,31(11):39-42. | |
| Authors: | Yao Xiandong Zhao Yiru Ji Genzhong Sun Xudong Wang Tianmin Qi Chenze |
| Abstract: | The analysis of data from the lifetime spectra on basics of the principle and the experimental method of this technique were introduced respectively. The application and the development of this technique in the field of polymers are reviewed in recent years. Many experimental results have shown that the positron annihilation technique is an advanced technique for the test and characterization of the polymer microstructure, such as the free-volume of polymers. In addition, it is suggested that the measuring parameter o-ps and intensity I, do not always appropriated to be calculated as a measure of the fraction free volume. |
| Keywords: | positron annihilation lifetime spectrum (PALS) positronium free-volume polymer |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |