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CPI-100P

General-purpose photoacid generator. Mono-body high-purity sulfonium salt type manufactured by our company. Excellent storage stability when a cationically polymerizable resin is blended.

Since it uses PF6 anions, it has cationic polymerization performance and is excellent in low colorability when the cured product is heated at high temperature.

50% propylene carbonate solution product.

Solvent-free type CPI-110P is also available.

CAS RN® 68156-13-8
M.W. 516

Physical characteristics / Packing / Development stage

Appearance Thin yellow liquid
Packing 1kgBottle, 20kgCAN
Stage Mass
Sample Free:10g


Q&A

What is the absorption wavelength?
The i-line (365 nm) absorbs about 80 [M-1 cm-1] in terms of molar extinction coefficient. There is no absorption in the h-line (405 nm) and g-line (436 nm).
Are there types with different generated acids?
There are CPI-101A, which is a SbF6 anion, and CPI-210S, which is an (Rf) nPF6-n anion.
We also have a track record of developing sulfonates such as trifluoromethanesulfonic acid.
If you have any other anions that you are interested in, please feel free to contact us.
How much should I add?
Add about 5 wt% to the resin, depending on the application and film thickness. In the case of cationic polymerization reaction, the amount of addition can be reduced by using the generated acid type (CPI-101A, 210S) with high acid strength.
What film thickness is suitable?
Although it depends on the application and the amount of addition, the molar extinction coefficient is small, so even a thick film of 100 μm or more has high light transmittance in the depth direction and can generate acid to the deep part. On the other hand, in the case of a thin film of about 10 μm, the type with a large molar extinction coefficient (CPI-400 series, etc.) is suitable because the effect of transmittance is small. The CPI-300 series is suitable for medium film thicknesses of about 50 μm.
What should I use as a sensitizer?
It has a high sensitizing effect for anthracenes such as dibutoxyanthracene (DBA).
On the other hand, the sensitizing effect of thioxanthone such as isopropyl thioxanthone (IPTX) is low.