p+1)--, ##STR104## --CH???N--, and combinations thereof, where r and r' are independently integer of 0 to about 20, s is independently an integer of 1 to about 10 for each (Cs H2s O), t is an integer of 1 to about 6, and p is an integer of 0 to about 4; R is selected from the group consisting of --O--(Cq' H2q'-v' --(R')v')--O)x --Cq H2q+1-v --(R')v, --((Cq' H2q'-y' --(R')v')--O)w --Cq H2q+1-v --(R