57  US 7,649,118 B2  58  fluorine-containing alicyclic monomers of the formula:  For example, there are:  Acrylic Monomer (Excluding Monomers Giving M2, Nl and  N2):  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:  wherein Xis selected from H, CH$_{3}$ ,  F and CF $_{3}$ .  Styrene Monomer:  and the like.  In addition, there are:  (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.  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.  CH2=CH-0, CH2=CH-OOH  cc,-cc--0 cc,-cc*c  F F  F  F F  F,  F  F F  CF3,  F  F,  q  ~t  (CF2-r;;-X,  F  F  (CF2-r;;-X,  Et  (CF2-r;;- X,  (n: 1 to 10, X: H, For Cl)  CH2=CXC00--0 