washed with 1 1 acetone water and air dried the isolated yield was 57 monomer i is the dye molecule synthesized in example 1 a the monomer mixture was polymerized between silicone treated glass plates using a fluorescent uv source similar phema films were cast using 200 ppm of the various monomers synthesized in example 1 discs were cut from the film prepared from monomer i as described in example 2 these untinted discs were tinted by a state of the art method using procian blue procian blue discs the visible spectra of the film discs of example 2 and the procian blue discs were compared the discs were then subjected to accelerated hydrolysis testing and the resultant visible spectra were again compared both types of discs showed about the same loss of color intensity however the loss of the color intensity in the procian disc was from loss of dye from the disc whereas loss of color intensity in the monomer i disc was due to the hydrolysis of the amine functionality rather than actual monomer loss phema films were made with 200 ppm of each of the monomers i ii iii and iv incorporation of the bismethacrylamide monomers into the phema was tested with the following results ______________________________________monomer bridge r incorporation______________________________________i ch sub 2 sub 2 92ii ch sub 2 sub 3 90iii ch sub 2 c ch sub 3 sub 2 ch sub 2 82iv 1 2 cyclohexylene 82______________________________________ the hydrolytic stability of the final polymeric material was tested by boiling the samples in buffered saline solution after 4 weeks the loss of color intensity was as follows ______________________________________ lossmonomer at 600 nm at 640 nm______________________________________i 18 26ii 16 28iii 14 26iv 5.