| abstract |
The present invention pertains to a film for detecting chemical substances comprising a homopolymer or a copolymer having recurring units represented by the following formula (I):n n wherein X is -H, -F, -Cl, -Br, -CH₃, -CF₃, -CN or -CH₂CH₃; and R¹ is -R² or -Z-R²; nwherein Z is -O-, -S-, -NH-, -NR 2' -, -(C=Y)-, -(C=Y)-Y-, -Y-(C=Y)-, -(SO₂)-, -Y'-(SO₂)-, -(SO₂)-Y'-, -Y'-(SO₂)-Y'-, -NH-(C=O)-, -(C=O)-NH-, -(C=O)-NR 2' -, -Y'-(C=Y)-Y'- or -O-(C=O)-(CH₂) n -(C=O)-O-; nwherein Y is independently O or S, and Y' is independently O or NH, and n is an integer of 0 to 20; nand wherein R² and R 2' represent independently a hydrogen atom, a linear alkyl group, a branched alkyl group, a cycloalkyl group, an unsaturated hydrocarbon group, an aryl group, a saturated or unsaturated hetero ring or derivatives thereof, provided that R¹ is not a hydrogen atom, a linear alkyl group or a branched alkyl group. The invention pertains also to a detector for chemical substances comprising such a film. |