Patent ID: 8546513

Claim:
A composition comprising a monomer, a nucleophile, and a guanidine-containing compound according to Formula (Ib) wherein the monomer comprises two electrophilic moieties separated by a linker and further wherein: n3 is selected from 0 and 1; X 1 and X 2 are independently selected from the group consisting of —NR 10 — and —C(R 11 )(R 12 )—, wherein R 10 , R 11 , and R 12 are independently selected from H and alkyl; R 2 and R 5 are independently selected from the group consisting of substituted and unsubstituted C 1 -C 30 alkyl; and R 8a , R 8b , R 9a , and R 9b are independently selected from the group consisting of H and substituted and unsubstituted alkyl, aryl, aralkyl, and alkaryl, any of which may be heteroatom-containing, provided that any two of R 8a , R 8b , R 9a , R 9b , R 10 , R 11 , and R 12 may be taken together to form a cycle.