• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Influence of temperature on the ultrasonic degradation of poly(vinyl acetate) and poly(vinyl chloride)
【24h】

Influence of temperature on the ultrasonic degradation of poly(vinyl acetate) and poly(vinyl chloride)

机译：温度对聚乙酸乙烯酯和聚氯乙烯超声降解的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study investigates the effect of temperature on the ultrasonic degradation of polyvinyl acetate and polyvinyl chloride in chlorobenzene. The time evolution of molecular weight distribution was determined using gel permeation chromatography. Continuous distribution kinetics was used to obtain the degradation rate coefficients. The rate coefficients decrease with increasing temperature, and this is attributed to the increase of vapor pressure and the decrease of kinematic viscosity. The degradation rate coefficient also changes sharply near the glass transition temperature, indicating that this factor may play a role in the degradation process. (C) 2003 Wiley Periodicals, Inc. [References: 17]
机译：这项研究调查了温度对超声降解聚氯乙烯和聚氯乙烯在氯苯中的影响。使用凝胶渗透色谱法测定分子量分布的时间演变。使用连续分布动力学来获得降解速率系数。速率系数随着温度的升高而降低，这归因于蒸气压的升高和运动粘度的降低。降解速率系数在玻璃化转变温度附近也急剧变化，表明该因素可能在降解过程中起作用。 （C）2003 Wiley Periodicals，Inc. [参考：17]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号