content_image/943161.jpg content_image/943159.jpg content_image/943162.jpg content_image/943160.jpg content_image/943158.jpg
fluorine-containing alicyclic monomers of the formula: 

<img src='content_image/943161.jpg'>

wherein A, B, C and Dare H, F, an alkyl group having 1 to 10 carbon atoms or a fluorine-containing alkyl group having 1 to 10 carbon atoms; 

mis O or an integer of from 1 to 3; any one of A to D has fluorine atom. 

There are concretely: 

<img src='content_image/943159.jpg'>

and the like. 

In addition, there are: 

<img src='content_image/943162.jpg'>

(A, B, C and D are H, F or an alkyl group or fluorine- containing alkyl group having 1 to 10 carbon atoms) 

and the like. 

Among them, norbomene derivatives are preferred. 

The structural unit N4 is selected from those copolymer- izable with the monomers constituting the other structural units. 

For example, there are: 

Acrylic Monomer (Excluding Monomers Giving M2, Nl and N2): 

<img src='content_image/943160.jpg'>

wherein Xis selected from H, CH$_{3}$ , F and CF $_{3}$ . 

Styrene Monomer: 

<img src='content_image/943158.jpg'>

wherein n is O or an integer of 1 or 2. 

Ethylene Monomer: 

CH$_{2}$=CH$_{2}$ , CH$_{2}$=CHCH$_{3}$ , CH$_{2}$=CHC1 and the like. 

