Such substituents include alkyl groups and alkoxy groups.Particularly preferred haloalkyl-substituted s-triazines are compounds of the formula: wherein R8 is a substituted or unsubstituted aliphatic or aromatic radical and each X preferably is, independently, a halogen atom.The most preferred haloalkyl-substituted s-triazines compounds for use in these embodiments are of the formula: wherein R8 is