| 摘要 |
<p>A fluorine-containing cellulose derivative of the formula: [C6H7O2(OH)a(OR)b(OCOA)c]p (I) wherein a is a number of not smaller than 0 (zero), b is a number of not smaller than 0 (zero), c is a number of larger than 0 (zero) provided that the sum of a, b and c is 3; p represents a degree of polymerization of the cellulose derivative and is a number of 5 to 3000; R is a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 8 carbon atoms, a substituted or unsubstituted acyl group having 2 to 8 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 carbon atoms or a substituted benzolyl group of the formula: <CHEM> wherein W is -COOR in which R is a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 8 carbon atoms; A is a group of the formula: <CHEM> wherein X is a hydrogen atom, a carboxyl group or an alkyl group having 1 to 5 carbon atoms and Y is a monovalent organic group having 2 to 20 carbon atoms and at least one fluorine atom or A is a group of the formula: -CF2CZ2-(OCF2CF2CZ2)q-F (IV) wherein the Z substituents are the same or different and each a hydrogen atom, a fluorine atom or a chlorine atom and q is a number of 1 to 200, which has better properties than the known fluorine-containing cellulose derivatives.</p> |
