Barrier properties of vinylidene chloride methyl acrylate copolymer

被引：0
|
作者：
Li, YS
Weng, ZX
Pan, ZR
机构：
[1] CHINESE ACAD SCI,CHANGCHUN INST APPL CHEM,CHANGCHUN 130022,PEOPLES R CHINA
[2] ZHEJIANG UNIV,INST POLYMER SCI & ENGN,HANGZHOU 310027,PEOPLES R CHINA
来源：
CHINESE JOURNAL OF POLYMER SCIENCE | 1997年 / 15卷 / 04期
关键词：
barrier properties; copolymer films; vinylidene chloride; methyl acrylate;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A series of vinylidene dichloride (VDC) copolymers with methyl acrylate (MA) as comonomer (3-12wt%), was prepared by free-radical suspension copolymerization. The permeability coefficients of the copolymers to oxygen and carbon dioxide were measured at 1.0 MPa and at 30 degrees C, and those to water vapor were measured at 30 degrees C and 100% relative humidity. All the VDC/MA copolymers studied are semicrystalline. As the MA content increases, the permeability coefficients of the copolymers to oxygen, carbon dioxide, and water vapor are progressively increased, caused by decrease in crystalline fraction and increase in free volume of VDC/MA copolymers.
引用
收藏
页码：319 / 324
页数：6
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