A polymer comprising: (a) one or more first monomeric units selected from monomers according to structure: wherein: R 11 is bicyclo[d.e.f]heptyl or bicyclo[d.e.f]heptenyl wherein d is 2, 3, or 4, e is 1 or 2, f is 0 or 1, and the sum of d + e + f = 5, and which may, optionally, be substituted on one or more of the ring carbon atoms by one or more (C 1 -C 6)alkyl groups, and R 19 is H or (C 1 -C 4)alkyl, b is an integer of from 1 to 6, g and h are independently integers of from 2 to 5, each i is independently an integer of from 1 to about 80, each j is independently an integer of from 0 to about 80, and k is an integer of from 1 to about 50, provided that the product obtained by multiplying the integer k times the sum of i+j is from 2 to about 100, and (b) one or more second monomeric units selected from monomers according to structure: wherein: R 21 is linear or branched (C 5 -C 50)alkyl, hydroxyalkyl, alkoxyalkyl, aryl, or aralkyl, R 25 is methyl or ethyl p and q are independently integers of from 2 to 5, each r is independently an integer of from 1 to about 80, each s is independently an integer of from 0 to about 80, and t is an integer of from 1 to about 50, provided that the product obtained by multiplying the integer t times the sum of r+s is from 2 to about 100, preferably wherein R 21 is linear (C 16 -C 22)alkyl, R 25 is methyl or ethyl, p = 2, s =0, and t = 1. (a) one or more first monomeric units selected from monomers according to structure: wherein: R 11 is bicyclo[d.e.f]heptyl or bicyclo[d.e.f]heptenyl wherein d is 2, 3, or 4, e is 1 or 2, f is 0 or 1, and the sum of d + e + f = 5, and which may, optionally, be substituted on one or more of the ring carbon atoms by one or more (C 1 -C 6)alkyl groups, and R 19 is H or (C 1 -C 4)alkyl, b is an integer of from 1 to 6, g and h are independently integers of from 2 to 5, each i is independently an integer of from 1 to about 80, each j is independently an integer of from 0 to about 80, and k is an integer of from 1 to about 50, provided that the product obtained by multiplying the integer k times the sum of i+j is from 2 to about 100, and R 11 is bicyclo[d.e.f]heptyl or bicyclo[d.e.f]heptenyl wherein d is 2, 3, or 4, e is 1 or 2, f is 0 or 1, and the sum of d + e + f = 5, and which may, optionally, be substituted on one or more of the ring carbon atoms by one or more (C 1 -C 6)alkyl groups, and R 19 is H or (C 1 -C 4)alkyl, b is an integer of from 1 to 6, g and h are independently integers of from 2 to 5, each i is independently an integer of from 1 to about 80, each j is independently an integer of from 0 to about 80, and k is an integer of from 1 to about 50, (b) one or more second monomeric units selected from monomers according to structure: wherein: R 21 is linear or branched (C 5 -C 50)alkyl, hydroxyalkyl, alkoxyalkyl, aryl, or aralkyl, R 25 is methyl or ethyl p and q are independently integers of from 2 to 5, each r is independently an integer of from 1 to about 80, each s is independently an integer of from 0 to about 80, and t is an integer of from 1 to about 50, provided that the product obtained by multiplying the integer t times the sum of r+s is from 2 to about 100, preferably wherein R 21 is linear (C 16 -C 22)alkyl, R 25 is methyl or ethyl, p = 2, s =0, and t = 1. R 21 is linear or branched (C 5 -C 50)alkyl, hydroxyalkyl, alkoxyalkyl, aryl, or aralkyl, R 25 is methyl or ethyl p and q are independently integers of from 2 to 5, each r is independently an integer of from 1 to about 80, each s is independently an integer of from 0 to about 80, and t is an integer of from 1 to about 50,