Novel monomers of the general formula
where b is 0 or 1, a is 1, 2, 3 or 4, R2 is a monovalent alkyl radical and R is an organic radical. The novel monomers may be employed to produce novel copolymers useful as hydrogel, soft non-hydrogel and/or rigid gas permeable contact lens materials.
通式如下的新型单体
其中 b 为 0 或 1,a 为 1、2、3 或 4,R2 为一价烷基,R 为有机基。新型单体可用于生产新型共聚物,用作
水凝胶、软性非
水凝胶和/或硬性透气隐形眼镜材料。