Bicolor fluorescent micro‐patterns in the polymer film are prepared through the use of a new group of photobase generator containing phthalimido carbamate groups. The photobase generation from phthalimide carbamates is studied by examining the changes in pH, fluorescence intensity, and photo‐crosslinking of poly(glycidyl methacrylate). The product analysis of a model compound indicates that amine groups are produced from the photolytic cleavage of the C–N bond of the phthalimide carbamate groups. A copolymer containing phthalimide carbamate groups is applied to a bicolor fluorescent imaging material. Red‐yellow fluorescent micropatterns are obtained by treating the copolymer film, which is irradiated with 254 nm UV light through a photomask, with fluorescamine and rhodamine, consecutively. Various colored fluorescent micropatterns – green, red, or red‐yellow, are obtained on a single polymer film by varying the excitation wavelength.

No abstract

Bicolor fluorescent micro-pattern in the polymer film was prepared through the use of a new group of photobase generator containing phthalimido carbamate groups. The photobase generation from phthalimide carbamates was studied from the product analysis of a model compound. The result indicates that amine was produced from the photolytic cleavage of the CN bond of the phthalimide carbamate group. Bicolor fluorescent micropatterns were obtained by treating a copolymer film containing phthalimido groups, which was irradiated with 254 nm UV light through photomask, with fluorescamine and rhodamine, consecutively. Various colored fluorescent micropatterns – green, red, or red-yellow, were obtained on a single polymer film by varying the excitation wavelength.