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Photo Acid Generator (PAGs)
Photo-acid generators (PAGs) are photo-sensitizers that undergo photolysis to generate acids. Such photo-acid generators are useful for various applications, because acids generated by photo-irradiation can be reactive species to promote cationic polymerizations and cross-linking reactions.
Photo-acid generators consist of a photo absorber moiety and an acid generating source moiety. In the type of ionic photo-acid generators, the cationic moieties such as sulfonium and iodonium mediate photo absorption, and then acids can be generated at the anionic moiety by following photolysis of the cationic moiety. We can provide variety of cation/anion combinations, because the structure of cation moiety can control photo absorption wavelength and absorbance, and also the structure of anion moiety can control acidity.
Non-ionic photo-acid generators are also known, because low solubility of ionic photo-acid generators is sometimes problematic. In the type of non-ionic photo-acid generators, a photo absorber moiety is bound with an acid generating source moiety by a covalent bond, and photolysis of the molecule can generate acids. We can provide several non-ionic photo-acid generators such as sulfonate esters and trichloromethyltriazine derivatives.
Sulfonium Salt-type Photo-Acid Generators
Strong acidity: HSbF6 > HB(C6F5)4 > HPF6 > HBF4 > (Rf)SO3H > RSO3H
T4012 Triphenylsulfonium Hexafluoroantimonate
D5952 Diphenyl[4-(phenylthio)phenyl]sulfonium Hexafluoroantimonate
D6259 Diphenyl[4-(phenylthio)phenyl]sulfonium Hexafluoroantimonate (ca. 50% in Propylene Carbonate)D6258 Diphenyl[4-(phenylthio)phenyl]sulfonium Tetrakis(pentafluorophenyl)borate
D6257 Diphenyl[4-(phenylthio)phenyl]sulfonium Tetrakis(pentafluorophenyl)borate (ca. 40% in Propylene Carbonate)B6631 [1,1'-Biphenyl]-4-yl[4-[[1,1'-biphenyl]-4-ylthio]phenyl](phenyl)sulfonium Tetrakis(perfluorophenyl)borate (contains isomer)
T4223 (9-Oxo-9H-thioxanthen-2-yl)[4-[(9-oxo-9H-thioxanthen-2-yl)thio]phenyl](phenyl)sulfonium Tetrakis(perfluorophenyl)borate
T4013 Triphenylsulfonium Hexafluorophosphate
D5990 Diphenyl[4-(phenylthio)phenyl]sulfonium Hexafluorophosphate
D6260 Diphenyl[4-(phenylthio)phenyl]sulfonium Hexafluorophosphate (ca. 50% in Propylene Carbonate)
H1776 (4-Hydroxyphenyl)dimethylsulfonium Hexafluorophosphate
T2041 Tri-p-tolylsulfonium Hexafluorophosphate
B6324 (Thiodi-4,1-phenylene)bis(diphenylsulfonium) Bis(hexafluorophosphate)
T1608 Triphenylsulfonium Tetrafluoroborate
T2180 Triphenylsulfonium Trifluoromethanesulfonate
T2042 Tri-p-tolylsulfonium Trifluoromethanesulfonate
T3038 Triphenylsulfonium Nonafluoro-1-butanesulfonate
T4024 Triphenylsulfonium 10-Camphorsulfonate
T4025 Triphenylsulfonium Chloride
T1609 Triphenylsulfonium Bromide
Iodonium Salt-type Photo-Acid Generators
Strong acidity: HSbF6 > HB(C6F5)4 > HPF6 > HBF4 > (Rf)SO3H > HAsF6
O0589 [4-(Octyloxy)phenyl](phenyl)iodonium Hexafluoroantimonate
H1683 [4-[(2-Hydroxytetradecyl)oxy]phenyl]phenyliodonium Hexafluoroantimonate
B6347 Bis(4-tert-butylphenyl)iodonium Hexafluoroantimonate
I0591 4-Isopropyl-4'-methyldiphenyliodonium Tetrakis(pentafluorophenyl)borate
B2380 Bis(4-tert-butylphenyl)iodonium Hexafluorophosphate
M3379 (4-Isobutylphenyl)(p-tolyl)iodonium Hexafluorophosphate (ca. 70% in Propylene Carbonate)
B5598 Bis(4-methylphenyl)iodonium Hexafluorophosphate
D2238 Diphenyliodonium Hexafluorophosphate
B5661 Bis(4-tert-butylphenyl)iodonium Tetrafluoroborate
D5118 Diphenyliodonium Tetrafluoroborate
B6071 Bis(4-tert-butylphenyl)iodonium Nonafluoro-1-butanesulfonate
D2253 Diphenyliodonium Trifluoromethanesulfonate
D2248 Diphenyliodonium Hexafluoroarsenate
I1254 (4-Isopropylphenyl)(p-tolyl)iodonium Trifluorotris(perfluoroethyl)phosphate(V)
B6355 Bis(4-tert-butylphenyl)iodonium Chloride
Non-ionic Photo-Acid Generators
H1136 N-Hydroxynaphthalimide Trifluoromethanesulfonate
M1245 2-(4-Methoxyphenyl)-4,6-bis(trichloromethyl)-1,3,5-triazine
B3633 2-(1,3-Benzodioxol-5-yl)-4,6-bis(trichloromethyl)-1,3,5-triazine
F0362 2-[2-(Furan-2-yl)vinyl]-4,6-bis(trichloromethyl)-1,3,5-triazine
M1209 2-[2-(5-Methylfuran-2-yl)vinyl]-4,6-bis(trichloromethyl)-1,3,5-triazine
M2140 2-(4-Methoxystyryl)-4,6-bis(trichloromethyl)-1,3,5-triazine
D2963 2-(3,4-Dimethoxystyryl)-4,6-bis(trichloromethyl)-1,3,5-triazine
Other Photo-Acid Generators
N0137 4-Nitrobenzenediazonium Tetrafluoroborate
C3751 (Cumene)cyclopentadienyliron(II) Hexafluorophosphate
Related Product Category Pages
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