4-Isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate
[CAS# 344562-80-7]

Identification

• Classification: Inorganic chemical industry >> Inorganic salt >> Phosphides, metal phosphoric acid, metaphosphoric acid, hypophosphorous acid and pyrophosphate
• Name: 4-Isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate
• Molecular Formula: C₁₇H₂₀I.PF₆
• Molecular Weight: 496.21
• CAS Registry Number: 344562-80-7
• EC Number: 435-690-6
• SMILES: CC1=CC=C(C=C1)[I+]C2=CC=C(C=C2)CC(C)C.F[P-](F)(F)(F)(F)F

Safety Data

• Hazard Symbols: GHS05;GHS07;GHS08;GHS09 Danger
• Risk Statements: H302-H317-H318-H373-H400-H410
• Safety Statements: P260-P261-P264-P264+P265-P270-P272-P273-P280-P301+P317-P302+P352-P305+P354+P338-P317-P319-P321-P330-P333+P317-P362+P364-P391-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin sensitization	Skin Sens.	1B	H317
Serious eye damage	Eye Dam.	1	H318
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400

Discovery and Applications

4-Isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate is a notable chemical compound in the field of photoinitiators used in polymer chemistry. Its discovery and application mark significant advancements in the development of advanced materials with tailored properties.

The compound was first synthesized in the late 20th century as part of ongoing research into improving photoinitiator performance. It is derived from the reaction of 4-isobutylphenyl and 4'-methylphenyliodonium salts with hexafluorophosphate. This synthesis yields a highly effective photoinitiator that plays a crucial role in initiating polymerization processes when exposed to ultraviolet (UV) light.

One of the primary applications of 4-isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate is in the formulation of UV-curable resins and coatings. The compound acts as a photoinitiator, a substance that absorbs UV light and generates free radicals necessary to start the polymerization of acrylate and methacrylate monomers. This property is especially valuable in the production of high-performance coatings, adhesives, and inks, where rapid curing and enhanced durability are required.

The compound's effectiveness as a photoinitiator stems from its ability to absorb UV light and decompose into reactive species that trigger polymerization. This leads to the rapid hardening of coatings and resins, which is advantageous for industrial processes that require efficient production cycles and high-quality finishes.

In addition to its use in coatings and adhesives, 4-isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate is also utilized in the development of advanced photopolymerizable materials for electronic and optical applications. Its high efficiency in initiating polymerization at low UV doses makes it suitable for applications where precise control over the polymerization process is essential.

The compound's stability and performance under various conditions make it a preferred choice in many industrial applications. Its effectiveness in initiating polymerization at low UV intensities contributes to the production of high-quality, durable materials with desirable properties.

Research into 4-isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate continues to explore its potential in new formulations and applications. The compound's role in advancing UV-curable technologies underscores its importance in the development of high-performance materials and coatings.

Overall, 4-isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate is a significant compound in the realm of photoinitiators. Its discovery and application have had a profound impact on the efficiency and performance of UV-curable resins and coatings, contributing to advancements in various industrial and technological fields.

References

2019. Influence of radical photoinitiator content on UV curing process and UV-cured hybrid sol-gel films. Journal of Coatings Technology and Research, 17(2).
DOI: 10.1007/s11998-019-00276-5

2012. Optimization of a photopolymerizable material based on a photocyclic initiating system using holographic recording. Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 11(11).
DOI: 10.1039/c2pp25099c