| Name | photochromic polythioazine |
| Synonyms | photochromic polythioazine |
| Physical and Chemical Properties | The absorption peak of photochromic polythiazide is about 600nm. The photochromic performance can be adjusted by electron donor. It is purple in aqueous solution. In the presence of Fe2 +, the purple color fades and turns into purple in the dark. |
| Use | The application can be used for micrographic reproduction, portrait, photochromic fiber, etc. |
Polyacrylamide is condensed with thiazide monomer; N-hydroxymethyl acrylamide and acrylamide form an interpolymer, and thionine dye is condensed.