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

Suyama, Kanji; Yamaguchi, Shizue; Shirai, Masamitsu; Tsunooka, Masahiro

doi:10.1002/1099-0518(20000901)38:17<3043::aid-pola40>3.0.co;2-n

Cited by 8 publications

(4 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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.…”

Section: Resultsmentioning

confidence: 99%

“…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.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Suyama

Yamaguchi

Shirai

et al. 2001

J. Polym. Sci. A Polym. Chem.

Self Cite

View full text Add to dashboard Cite

Solubility changes in the irradiation of copolymers bearing photoacid‐ or photobase‐generating groups and low molecular weight photobase generators (PBGs) or photoacid generators (PAGs) were investigated. Copolymers bearing acyloxyimino (AOI) groups were used as those generating pendant amino groups photochemically. Copolymers bearing o‐nitrobenzyloxycarbonyl and imino sulfonate groups were used as those generating carboxy and sulfo groups, respectively. The solubility of copolymers bearing AOI groups into polar solvents was enhanced by added PAGs such as β‐keto sulfones or imino sulfonates after irradiation. A similar enhancement was observed in copolymers bearing o‐nitrobenzyloxycarbonyl groups in the presence of PBGs such as oxime esters or o‐nitrobenzyl carbamates. These results showed that the formation of acid–base pairs on irradiation was effective for dissolution into polar solvents. Copolymers bearing imino sulfonate groups showed a high solubility, and no such enhancement was observed by PBG. Films of copolymers bearing β‐keto sulfone groups became insoluble because of crosslinking. © 2001 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 39: 1708–1715, 2001

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Suyama

Yamaguchi

Shirai

et al. 2001

J. Polym. Sci. A Polym. Chem.

Self Cite

View full text Add to dashboard Cite

show abstract

“…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.…”

Section: Developmentmentioning

confidence: 99%

“…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.…”

Section: Introductionmentioning

confidence: 99%