3345-29-7

Parylen AF₄ is extremely useful in high temperature applications and those in which long-term UV stability is required.

• Aerospace
• Military
• Electronic
• Medical
• Industrial
• Semiconductor (3D IC TSV electrical insulation , AMOLED De-bonding layer , Barrier layer )
• Bio-MEMS electrode protection film
• EWD (Electro Wetting Device) Liquid lens

1,1,2,2,9,9,10,10-Octafluoro[2.2]paracyclophane can be used:
(1) cross-coupling reactions. 4-iodo-1,1,2,2,9,9,10,10-octafluoro[2.2]paracyclophane is successfully coupled to a variety of arylboronic acids and boronic acid pinacol esters with the exception of sterically-demanding systems such as mesityl. Using the standard Suzuki method, dicyclophane containing two octafluoro[2.2]paracyclophane units separated by one and two benzene rings can be prepared.
(2) Spectroscopic studies. It is an isomer of 1-fluorocyclopropane and has a shorter reaction time compared to 1-fluorocyclopropane. The spectral properties of this compound are similar to those of 1-fluorocyclopropane. Its mass spectrum shows peaks corresponding to molecular ions with m/e=256 and its fragmentation pattern corresponds to monosubstituted aromatic hydrocarbons.

1,1,2,2,9,9,10,10-Octafluoro[2.2]paracyclophane is synthesised using 1,4-Bis(bromodifluoromethyl)benzene as a raw material by chemical reaction.

Characteristics of Parylen AF4 coating:
Specialties:

• Unmatched UV stability
• Excellent thermal stability at high service temperature (350)
• Unmatched oxidation stability
• Completely conformal coating
• Superior crevice penetration, pin hole free
• Anti-saline damage
• Anti-stick ion

Barrier properties:

• Chemical insolubility and solvent resistant
• Low water absorption
• Hydrophobic properties
• Low gas permeability , no out-gassing

Physical & mechanical properties:

• Transparent
• Light-weight and ultra-thin
• Low CTE
• Low coefficient of friction
• Good dry lubricity
• Abrasion resistance
• Stabilization of components and structures
• Particulate immobilization

Electrical properties:

• Electrical insulation
• High dielectric strength
• High volume resistivity ,ohm-cm
• Low dissipation factor
• Low dielectric constant
• Mitigation of tin whisker growth

Biocompatibility and bio-stability

• USP class VI
• Microorganism resistance