| abstract |
A chemical composition comprising a linker agent and a compound comprising at least one UV-absorbing chromophore, wherein the linker agent is characterized by the general formula: n n nwherein X 1 and X 2 are the same or different, and at least one of X 1 or X 2 is a functional group that bonds with the compound comprising at least one UV-absorbing chromophore, and b+f≧2, Y comprises an 0, N, or S that is substituted or unsubstituted, each a, b, c, e and f is ≧0 and a+b+c+e+f≧2, d is 0 or 1, n1 and n2 represent the number of hydrogen atoms required to complete the undesignated valencies, and m ranges from 1 to about 100 and each individual m unit may be the same or different. |