| abstract |
Conventional colored resin compositions using rhodamine derivatives cannot obtain heat resistance within a practical range. Therefore, an object of the present invention is to provide a colored composition having higher heat resistance than conventional colored compositions. The present invention relates to a compound represented by the following general formula (1), a polymer having a monomer unit derived from the compound, and the like. (In formula (1), R 1 to R 4 each independently represent a hydrogen atom, an alkyl group, etc., R 7 represents a hydrogen atom or a methyl group, R 8 and R 9 each independently represent a hydrogen atom or an alkyl group, and Y represents nitrogen Atom or the group represented by the following formula (1-1), A 1 represents that in the chain there is An alkylene group or the like of at least one group in the group, A 2 represents -NH- or -O-. An - represents an anion including an aryl group having an electron-withdrawing substituent, and n represents an integer of 0-3. R 8 and R 9 may form a 5- to 6-membered ring structure through -N-(CH 2 ) n -Y- bonded to them.) |