| Abstract: | Photochromic vinyl polymers of the mercuric thiocarbazonate series were synthesized via the three sequences: (1) synthesis of p-(meth)acrylamidophenyl mercuric acetate(II) by the reaction of (meth)acrylyl chloride with p-aminophenyl mercuric acetate, followed by polymerization to afford corresponding polymers(III) and subsequent reaction with diphenyl- or di-β-naphthyl-thiocarbazone, (2) alternative preparation of III by the reaction of (meth)acrylyl chloride polymers with p-aminophenyl mercuric acetate, and (3) reaction of N-hydroxymethyl (meth)acrylamide polymers with p-amidophenyl mercuric thiocarbazonates. The photochromic behavior of these polymers was investigated to provide data which might indicate the effect of steric conditions on the isomerization of the photochromic components in polymers both under illumination and in dark recovery. |
