(4-(Octyloxy)phenyl)(phenyl)iodonium hexafluorostibate(V)

CAS

121239-75-6

Catalog Number

ACM121239756

Category

Main Products

Molecular Weight

645.07

Molecular Formula

C20H26F6IOSb

MSDS COA Spec Sheet

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Specification

Synonyms

HRcure-9392

Appearance

Off-White solid

IOC-8 SbF6 as an Initiator for the Preparation of Fiber Reinforced Polymers

Staal J, et al. Composites Science and Technology, 2023, 237, 110009.

Free radical induced cationic front polymerization (RICFP) is considered to be a promising low-energy fiber reinforced polymer (FRP) processing method. In this work, several methods to control the heat balance in FRP RICFP processing were investigated. Among them, the heat generation was controlled by adjusting the initiator concentration.
Preparation procedure of FRP
· The resins were formulated using Omnilane OC1005 as the base, which included the ECC monomer. Photo- and thermal initiators, p-(octyloxyphenyl)phenyl iodonium hexafluorostibate (IOC-8 SbF6) and benzopinacol, were then added in varying amounts. Additionally, small quantities of isopropyl thioxanthone were included to adjust the initiation wavelength spectrum.
· The carbon fibre preform used had a 2 × 2 twill weave with an areal weight of 285 g/m2, 3.5/3.5 cm-1 ends/picks count, and 6K fibres per yarn. Moulds were created using mould steel, silicone elastomer, or Teflon-covered PVC foam core. UV-irradiation was carried out using a Standard UV-light source.
The resins underwent purification in a vacuum chamber for 24 hours, followed by the dissolution of the initiating and photosensitising compounds under high shear rate. Prior to use in experiments, the solutions were degassed under vacuum at room temperature for approximately 30 minutes.

Application of p-(Octyloxyphenyl)Phenyliodine Hexafluoroantimonate Photoinitiator in Fiber-Reinforced Composite Processing

Staal J, et al. Composites Science and Technology, 2024, 251, 110584.

A novel autocatalytic front-end polymerization manufacturing method based on the integration of thin resin channels in thermal contact with the composite stack is proposed as a strategy for low-energy production of high fiber volume fraction polymer composites. Among them, p-(octyloxyphenyl)phenyliodine hexafluoroantimonate is used as a cationic photoinitiator.
Resin preparation and autocatalytic RICFP processing
· To prepare the resin, 3,4-epoxycyclohexylmethyl-3',4'-epoxycyclohexanecarboxylate resin was first dried in a vacuum chamber for 24 hours. Cationic photoinitiator [p-(octyloxyphenyl)phenyl iodonium hexafluorostibate], free-radical thermal initiator [benzopinacol], and photosensitizer [isopropylthioxanthone] were added at specific concentrations and mixed until dissolved. Resins were degassed under vacuum for at least 30 minutes before the experiment.
· During the self-catalysed RICFP processing, FRPs were created in a foam mould with Teflon coating for easy sample release. Mould cavities were defined and reinforced with carbon and E-glass twill weave fabrics. The fabrics were manually cut and stacked in the mould cavity, with a gore-tex flap, aluminium foil layer, carbon FRP separator, and aluminium strips at the edges to create a resin channel. The fabric stack and resin channel were impregnated simultaneously at a constant flow rate using a syringe pump. UV irradiation was used to initiate the process, and the composites were left to cool in the mould cavity after completion.