Surface modification of ethylene-vinyl alcohol (EVOH) copolymer films by the attachment of triethoxysilane functionality

被引：10
|
作者：
Wen, JY
Wilkes, GL
机构：
[1] VIRGINIA POLYTECH INST & STATE UNIV,DEPT CHEM ENGN,BLACKSBURG,VA 24061
[2] VIRGINIA POLYTECH INST & STATE UNIV,POLYMER MAT & INTERFACES LAB,BLACKSBURG,VA 24061
来源：
POLYMER BULLETIN | 1996年 / 37卷 / 01期
关键词：
D O I：
10.1007/BF00313818
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Triethoxysilane groups were covalently attached onto the surface of ethylene-vinyl alcohol (EVOH) copolymer film via a urethane linkage through reaction between the hydroxyl groups in EVOH and 3-isocyanatopropyltriethoxysilane in the presence of dibutyltin dilaurate as catalyst. This reaction was confirmed by ATR-IR and XPS analysis. XPS results also indicated that this reaction was not surface sensitive and the modified layer was at least 40 Angstrom in depth. The modified film samples were further reacted with tetramethoxysilane (TMOS) for partial hydrolysis and condensation and XPS results showed a significant increase in the contents of oxygen and silicone on the surface which confirmed the above reaction.
引用
收藏
页码：51 / 57
页数：7
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