...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>High Energy Chemistry >Features of the Molecular-Topological Structure of gamma-Irradiated Powdered Tetrafluoroethylene-Perfluoro( propyl vinyl ether) Copolymer
【24h】

Features of the Molecular-Topological Structure of gamma-Irradiated Powdered Tetrafluoroethylene-Perfluoro( propyl vinyl ether) Copolymer

机译：γ辐射粉末四氟乙烯 - 全氟（丙基乙烯基醚）共聚物的分子 - 拓扑结构的特征

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

With the use of thermomechanical spectrometry in two modes, coaxial, when the load application vector is coplanar with the compacting pressure vector (semicrystalline copolymer) during the measurement of the deformation of a copolymer of tetrafluoroethylene with perfluoro(propyl vinyl ether), and mutually perpendicular (completely amorphous copolymer), it has been established that the axial compression of the copolymer brought its topological structure to an absolutely anisotropic state. After gamma-irradiation, the semicrystalline structure of the copolymer was retained regardless of the radiation dose. The minimum values of the glass transition temperature of the amorphous block and the degree of crystallinity were observed in the copolymer irradiated to a dose of 150 kGy. The molecular weight distribution functions of interjunction chains in the networks of the amorphous blocks of the initial copolymer and its gamma-irradiated analogs are bimodal.
机译：随着热机械光谱法以两种模式，同轴，当负载施加载体与压实压力载体（半结晶共聚物）相连，在测量四氟乙烯与全氟乙烯（丙基乙烯基醚）的共聚物的变形过程中，并相互垂直 （完全无定形共聚物），已经确定共聚物的轴向压缩使其拓扑结构呈绝对各向异性状态。 γ-辐照后，无论放射剂量如何，都保留了共聚物的半结晶结构。 在照射到150kGy剂量的共聚物中观察到无定形块的玻璃化转变温度的最小值和结晶度。 初始共聚物的无定形块网络中互通链的分子量分布函数及其γ辐照的类似物是双峰的。

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