IK-1FG Ionic Photoacid Generator, Photo-Cationic Polymerization Initiator, Iodonium

Sulfonium Series

CPI®-100 / 200series UV
UV light / i-line

CPI-100P(liquid)
CPI-110P(powder)
CPI-100B(40)(liquid)
CPI-110B(powder)
CPI-101A(liquid)
CPI-200K(liquid)
CPI-210S(powder)
cation
(light-absorbing site)

CPI®-300series
i-line

CPI-310FG(powder)
CPI-310B(powder)
cation
(light-absorbing site)

VC-1 VC-2 Series (development product)
i-line

VC-1FG(powder)
cation
(light-absorbing site)

CPI®-400series
g-line / h-line/ i-line

CPI-410S(powder)
CPI-410B(powder)
cation
(light-absorbing site)

ES-1 (development product)
ES-2 (development product)
g-line / h-line/ i-line

ES-1B(powder)
ES-2B(powder)
cation
(light-absorbing site)

Photoacid Generator(Iodonium)
IK Series

IK-1(powder)
IK-1FG(powder)
cation
(light-absorbing site)

IK-20B(powder)
cation
(light-absorbing site)

Nonionic Photoacid Generator

NAseries
(development product)
i-line compatible

NA-CS1(powder)
Aryl amide skeleton with
a light-absorbing moiety

Thermal acid generator

Thermal acid generator(Overview and Function Map)

TA Series(Sulfonium Salt Type)

TA-100(powder)
TA-100FG(powder)
cation

IKseries(Iodonium Salt Type)

IK-1(powder)
IK-1FG(powder)
cation

AAseries(Ammonium Salt-Type)

AA-01(powder)
cation

IK-20B(powder)
cation

Thermal Base Generators

DBU Salt Thermal Base Generators

DBU Salt

U-CAT SA 1(liquid)
U-CAT SA 102(liquid～solid)
U-CAT SA 603(solid)
U-CAT SA 810(solid)
U-CAT SA 506(liquid～solid)

Ammonium Salts

U-CAT 18X(liquid～solid)

IK-1FGIonic Photoacid Generator, Photo-Cationic Polymerization Initiator, Iodonium

Characteristics and Applications

IK-1FG is a special grade iodonium salt type photoacid generator only available from us.
Combined with a sensitizer, it can handle longer wavelengths.
The anion structure is a special anion (FG) of our proprietary design, which exhibits high cationic polymerization. It also has excellent low metal corrosion of cured materials and low coloration when heated at high temperatures.
It can also be used as a high-temperature type thermal acid generator.
IK-1FG is a non-solvent type powder product.

Differences from sulfonium salt types

The iodonium salt type has relatively poor storage stability when compounded with a cationically polymerizable resin compared to the sulfonium salt type, but a large sensitizer effect can be expected when used in combination with a sensitizer.
Absorption Wavelengths without a Sensitizer

According to the result in acetonitrile solution, there is an absorption wavelength up to about 300 nm.
Recommended sensitizers

Anthracene-based sensitizers such as dibutoxyanthracene (DBA) and thioxanthone-based sensitizers such as isopropylthioxanthone (IPTX) can be expected to have a large sensitizing effect.
Polymerization initiation temperature

When blended with bisphenol A type glycidyl ether, polymerization starts at 140 °C.
Characteristics of FG (special anion)

It has high acid strength and reactivity equivalent to HSbF6. In addition, corrosion of peripheral members and coloring during heat curing can be suppressed.
Regarding different types of acids generated

There is IK-1 which is a PF3(C2F5)3 anion.
We have a track record of developing other anions, so if you have any anions that you are interested in, please feel free to contact us.
Recommended amount of additive

Add about 0.5 to 1 wt% to the resin, depending on the application and film thickness.

Product

Structure	Anion	CAS RN®	M.W.	Appearance	color	High sensivity for i-line	Low coloration	gh ray high sensitivity	High solubility	High Activity（Strong acid）	Solution product	non-PFAS	Low corrosiveness	Packing	Stage
	Ga(C₆F₅)₄	321201-31-4	1075	Powder	White ~ Gray		✔			✔		✔	✔	0.5kgBottle, 5kgCAN	Pilot

We also offer technical advice

Thank you for considering our products.
We provide support for product development by offering product characteristics, data and technical information to solve the challenges faced by product developers and researchers.

Product Inquiry Technical Consultation Other Consultation/Inquiries

In recent years, there has been a worldwide tightening of regulations on per- and polyfluoroalkyl substances (PFAS), and we are focusing on the development of PFAS-free products to ensure that our customers can use them with peace of mind. Please also make use of our existing lineup of PFAS-free products.

*PFAS: OECD definition published in2021