Fluoroalcohol compounds of formula (1) are useful in producing polymers which are used as the base resin to formulate radiation-sensitive resist compositions having transparency to radiation having a wavelength of up to 500 nm and improved development characteristics. R
1
is hydrogen or a monovalent C
1
-C
20
hydrocarbon group in which any constituent —CH
2
— moiety may be replaced by —O— or —C(═O)—, Aa is a (k
1
+1)-valent C
1
-C
20
hydrocarbon or fluorinated hydrocarbon group, and k
1
is 1, 2 or 3.
公式(1)的
氟醇化合物在生产用作基础
树脂的聚合物方面很有用,这些聚合物用于配制对波长高达500纳米的辐射具有透明性和改进的开发特性的辐射敏感型光刻胶组合物。R1是氢或一价的C1-C20碳氢基团,在其中任何成分的—
CH2—基团可以被—O—或—C(═O)—替代,Aa是(k1+1)-价的C1-C20碳氢基团或
氟化碳氢基团,k1为1、2或3。