摘要
通过对不同组成的共聚酯的热分析（ＤＳＣ）及密度测定，并推导出它们的ＷＬＦ自由体积分数，分析了共聚酯的基本结构以及极性对它们的影响；研究了结构、极性对共聚酯的气体透过性能的影响。
The structure of copolyester and effect of polar on it was investigated by Differential Scanning Calorimeter(DSC) density measuring and calculation of WLF free volume fraction of copolyesters.The effect of structure and polar on permeability of copolyesters was also discussed in this paper. The structure was made closed by polar groups and result in high barrier property of copolyester.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1994年第2期101-105,共5页
Polymer Materials Science & Engineering
关键词
共聚酯
气体透过性
热分析
聚酯
s: copolyester
gas permeability
permeability coefficient
solubility coefficient
diffusion coefficient.
