| 摘要 |
<p>Fluorine and/or silicone containing block copolymers are described which are the copolymerization product of mono; di- or trivinyl substituted poly(alkylene oxide) prepolymers (A) and fluoroalkyl-alkylene acrylates or methacrylates (B1), oligosiloxysilyl alkyl-acrylates or methacrylates (B2), other copolymerizable comonomers (C), and 0.1 to 10% of a di- or polyvinyl crosslinking comonomer (D) of 200 to 1000 molecular weight. The novel block copolymers are prepared in solution or bulk and form hydrogels which are characterized by high oxygen permeability, resiliency, flexibility and wettability and are therefore well suited as biocompatible polymers, especially as contact lenses.</p> |
