主权项 |
1. 一种两亲性含氟嵌段共聚物,由下式表达:<img file="C2006100381340002C1.GIF" wi="1047" he="432" />式中,x为16-45,y为10-50,z为3-10,R1选自<img file="C2006100381340002C2.GIF" wi="980" he="179" />或<img file="C2006100381340002C3.GIF" wi="312" he="142" />R<sub>2</sub>选自-CH<sub>2</sub>CF<sub>3</sub>,-CH<sub>2</sub>CF<sub>2</sub>CHFCF<sub>3</sub>,-CH<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CHF<sub>2</sub>,-CH<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CHF<sub>2</sub>,或-CH<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>2</sub>CF<sub>3</sub>。 |