Patent ID: 7951524

Claim:
A polymer, comprising repeat units with the following formulae: wherein: R 1 , R 2 , and R 3 are independently hydrogen, fluorine, alkyl, or fluoroalkyl; R 4 is (i) a linear, branched, or cyclic alkylene containing one or more fluoroalcohol groups that are unprotected or partially or fully protected with an acid-labile group, or (ii) a linear, branched or cyclic heteroalkylene containing one or more fluoroalcohol groups that are unprotected or partially or fully protected with an acid-labile group; R 5 is (i) a hydrogen or linear, branched, or cyclic alkylene group that is acid-labile, or (ii)a linear, branched or cyclic heteroalkylene group that is acid-labile, or (iii) a linear, branched, or cyclic alkylene group containing one or more carboxylic acid, sulfonamide, fluoroalcohol, or sulfonic acid moieties, that are unprotected or partially or fully protected with an acid-labile group, or (iv) a linear, branched or cyclic heteroalkylene group containing one or more carboxylic acid, sulfonamide, fluoroalcohol, or sulfonic acid moieties, that are unprotected or partially or fully protected with an acid-labile group; R 6 is a partially fluorinated or perfluorinated group, other than a fluorinated ether, that is acid-labile or non-acid labile; and wherein M1, M2 and M3 have the respective structures: wherein x:y:z=1-30 mole %: 98-50 mole %: 1-49 mole % and x+y+z does not exceed 100 mole %; or wherein x:y:z=1-30 mole %: 98-50 mole %: 1-49 mole % and x+y+z does not exceed 100 mole %; or wherein x:y:z=1-30 mole %: 98-50 mole %: 1-49 mole % and x+y+z does not exceed 100 mole %; or wherein x:y:z=1-30 mole %: 98-50 mole %: 1-49 mole % and x+y+z does not exceed 100 mole %; or wherein x:y:z=1-30 mole %: 98-50 mole %: 1-49 mole % and x+y+z does not exceed 100 mole %; or wherein x:y:z=1-30 mole %: 98-50 mole %: 1-49 mole % and x+y+z does not exceed 100 mole %; or wherein x:y:z=1-30 mole %: 98-50 mole %: 1-49 mole % and x+y+z does not exceed 100 mole %.