POLY(VINYLALCOHOL)-CO-POLY(VINYLAMINE) POLYMERS COMPRISING FUNCTIONAL MOIETIES

摘要

The invention relates to poly(vinylalcohol)-co-poly(vinylamine) copolymers represented as formula (I), where B is greater than or equal to 1, L is independently of each other a chemical linking group which is -NH-, -N=, > ;N-, >N++<, -O- or -CO-, COPOLYMER is derived from a prepolymer of the form ula (II) where R1 and R3 are independently H; 3-propionic acid or C1,-C6 alkyl ester thereof; or is 2-methyl-3-propionic acid or C1-C6 alkyl ester thereof, R2 an d R4 are independently H or C1,-C6 alkyl, x+y+z is between about 3 and about 5 0 mole percent and q, n and m together make up the remainder of the mole percent, the indices x, y, z, n, m -and q independently may be 0, if q is no t 0, b may also be 0.