Heteroatom containing perfluoroalkyl terminated neopentyl mercapto-alcohols and compositions therefrom
申请人:CIBA-GEIGY AG
公开号:EP0501915A1
公开(公告)日:1992-09-02
Heteroatom containing perfluoroalkyl terminated neopentyl mercapto-alcohols of the formulas I and II
HS-(CH₂C(CH₂X-E-Rf)₂CH₂]-OH (I)
HS-(CH₂C(CH₂X₁-Rf)₂CH₂]-OH (II)
are prepared from the corresponding perfluorinated neopentyl oxetanes where Rf is a straight or branched chain perfluoroalkyl of 1 to 18 carbon atoms or said perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms, E is a linking group, and X and X₁ are heteroatom moieties.
The reaction products of these fluorinated mercapto-alcohols with electrophiles are disclosed as are certain functional derivatives. Compositions containing such materials provide improved thermal stability and useful low surface energy oil and water repellent coatings for textiles, glass, paper, leather, and other materials.
式 I 和 II 的含全氟烷基端新戊基巯基醇异构体
HS-(CH₂C(CH₂X-E-Rf)₂CH₂]-OH (I)
HS-(CH₂C(CH₂X₁-Rf)₂CH₂]-OH (II)
由相应的全氟新戊基氧杂环丁烷制备而成,其中 Rf 是 1 至 18 个碳原子的直链或支链全氟烷基或被 2 至 6 个碳原子的全氟烷氧基取代的全氟烷基,E 是连接基团,X 和 X₁ 是杂原子分子。
这些氟化巯基乙醇与亲电物的反应产物以及某些官能衍生物均已公开。含有此类材料的组合物具有更好的热稳定性,可为纺织品、玻璃、纸张、皮革和其他材料提供有用的低表面能拒油拒水涂层。