Image formation by dyeing of copolymers bearing photogenerated acid and base groups with dye bath containing acid and basic dyes

Enhanced dissolution of copolymers bearing photobase‐ or photoacid‐generating groups in polar solvents by photochemical formation of ionic pairs

“…BP is known as a good sensitizer of photodecomposition in the AOI groups 25. Because β‐KS groups are also known to sensitize the decomposition,23, 24 probably resulting from an aromatic ketone moiety, TPS would work as a sensitizer. The decreases of peaks as a result of sulfone‐stretching bands in both NITS and TPS are also plotted in Figure 3.…”

“…We have already reported that acid or base groups were easily introduced photochemically to polymers bearing photobase‐ or photoacid‐generating groups and films turned soluble in polar solvents. However, polymers bearing both groups became insoluble on irradiation, which was deduced to result from an ionic interaction like a polyion complex 23, 24. Therefore, we chose two systems consisting of (1) copolymers or oligomers bearing photobase‐generating groups and low molecular weight PAGs, and (2) copolymers or oligomers bearing photoacid‐generating groups and low molecular weight PBGs.…”

Enhanced dissolution of copolymers bearing photobase‐ or photoacid‐generating groups in polar solvents by photochemical formation of ionic pairs

“…BP is known as a good sensitizer of photodecomposition in the AOI groups 25. Because β‐KS groups are also known to sensitize the decomposition,23, 24 probably resulting from an aromatic ketone moiety, TPS would work as a sensitizer. The decreases of peaks as a result of sulfone‐stretching bands in both NITS and TPS are also plotted in Figure 3.…”

“…We have already reported that acid or base groups were easily introduced photochemically to polymers bearing photobase‐ or photoacid‐generating groups and films turned soluble in polar solvents. However, polymers bearing both groups became insoluble on irradiation, which was deduced to result from an ionic interaction like a polyion complex 23, 24. Therefore, we chose two systems consisting of (1) copolymers or oligomers bearing photobase‐generating groups and low molecular weight PAGs, and (2) copolymers or oligomers bearing photoacid‐generating groups and low molecular weight PBGs.…”

Enhanced dissolution of copolymers bearing photobase‐ or photoacid‐generating groups in polar solvents by photochemical formation of ionic pairs

“…BP is known as a good sensitizer of photodecomposition in the AOI groups. 25 Because ␤-KS groups are also known to sensitize the decomposition, 23,24 probably resulting from an aromatic ketone moiety, TPS would work as a sensitizer. The decreases of peaks as a result of sulfone-stretching bands in both NITS and TPS are also plotted in Figure 3.…”

“…However, polymers bearing both groups became insoluble on irradiation, which was deduced to result from an ionic interaction like a polyion complex. 23,24 Therefore, we chose two systems consisting of (1) copolymers or oligomers bearing photobase-generating groups and low molecular weight PAGs, and (2) copolymers or oligomers bearing photoacid-generating groups and low molecular weight PBGs. Oligomers were investigated in the expectation for the enhancement of solubility change.…”

Enhanced dissolution of copolymers bearing photobase‐ or photoacid‐generating groups in polar solvents by photochemical formation of ionic pairs

“…BP is known as a good sensitizer of photodecomposition in the AOI groups 25. Because β‐KS groups are also known to sensitize the decomposition,23, 24 probably resulting from an aromatic ketone moiety, TPS would work as a sensitizer. The decreases of peaks as a result of sulfone‐stretching bands in both NITS and TPS are also plotted in Figure 3.…”

“…We have already reported that acid or base groups were easily introduced photochemically to polymers bearing photobase‐ or photoacid‐generating groups and films turned soluble in polar solvents. However, polymers bearing both groups became insoluble on irradiation, which was deduced to result from an ionic interaction like a polyion complex 23, 24. Therefore, we chose two systems consisting of (1) copolymers or oligomers bearing photobase‐generating groups and low molecular weight PAGs, and (2) copolymers or oligomers bearing photoacid‐generating groups and low molecular weight PBGs.…”

Enhanced dissolution of copolymers bearing photobase‐ or photoacid‐generating groups in polar solvents by photochemical formation of ionic pairs

“…BP is known as a good sensitizer of photodecomposition in the AOI groups. 25 Because ␤-KS groups are also known to sensitize the decomposition, 23,24 probably resulting from an aromatic ketone moiety, TPS would work as a sensitizer. The decreases of peaks as a result of sulfone-stretching bands in both NITS and TPS are also plotted in Figure 3.…”

“…However, polymers bearing both groups became insoluble on irradiation, which was deduced to result from an ionic interaction like a polyion complex. 23,24 Therefore, we chose two systems consisting of (1) copolymers or oligomers bearing photobase-generating groups and low molecular weight PAGs, and (2) copolymers or oligomers bearing photoacid-generating groups and low molecular weight PBGs. Oligomers were investigated in the expectation for the enhancement of solubility change.…”

Enhanced dissolution of copolymers bearing photobase‐ or photoacid‐generating groups in polar solvents by photochemical formation of ionic pairs

“…BP is known as a good sensitizer of photodecomposition in the AOI groups 25. Because β‐KS groups are also known to sensitize the decomposition,23, 24 probably resulting from an aromatic ketone moiety, TPS would work as a sensitizer. The decreases of peaks as a result of sulfone‐stretching bands in both NITS and TPS are also plotted in Figure 3.…”

“…We have already reported that acid or base groups were easily introduced photochemically to polymers bearing photobase‐ or photoacid‐generating groups and films turned soluble in polar solvents. However, polymers bearing both groups became insoluble on irradiation, which was deduced to result from an ionic interaction like a polyion complex 23, 24. Therefore, we chose two systems consisting of (1) copolymers or oligomers bearing photobase‐generating groups and low molecular weight PAGs, and (2) copolymers or oligomers bearing photoacid‐generating groups and low molecular weight PBGs.…”

Enhanced dissolution of copolymers bearing photobase‐ or photoacid‐generating groups in polar solvents by photochemical formation of ionic pairs

“…BP is known as a good sensitizer of photodecomposition in the AOI groups. 25 Because ␤-KS groups are also known to sensitize the decomposition, 23,24 probably resulting from an aromatic ketone moiety, TPS would work as a sensitizer. The decreases of peaks as a result of sulfone-stretching bands in both NITS and TPS are also plotted in Figure 3.…”

“…However, polymers bearing both groups became insoluble on irradiation, which was deduced to result from an ionic interaction like a polyion complex. 23,24 Therefore, we chose two systems consisting of (1) copolymers or oligomers bearing photobase-generating groups and low molecular weight PAGs, and (2) copolymers or oligomers bearing photoacid-generating groups and low molecular weight PBGs. Oligomers were investigated in the expectation for the enhancement of solubility change.…”