141185-40-2

Upstream product

• 100-39-0 benzyl bromide 
• 603-35-0 triphenylphosphine 
• 2506-41-4 1-chloromethylnaphthalene 

Downstream Products

• 141185-43-5 2-Chloro-benzoic acid (Z)-1-(2-chloro-phenyl)-2-naphthalen-2-yl-vinyl ester 
• 791-28-6 Triphenylphosphine oxide 
• 122557-68-0 1-benzoyloxy-1-phenyl-2-(2-naphthyl)ethene 
• 141185-53-7 <1-(2-naphthyl)-2-benzoyloxy-2-phenylethenyl>triphenylphosphonium chloride 

Relevant academic research and scientific papers

Azahelicenes as visible light photoinitiators for cationic and radical polymerization: Preparation of photoluminescent polymers and use in high performance LED projector 3D printing resins

In this article, novel azahelicenes (AZs) were synthesized and proposed as high performance visible light photoinitiators for both the free radical polymerization of acrylates and the cationic polymerization (CP) of epoxides upon visible light exposure us

Novel carbazole skeleton-based photoinitiators for led polymerization and LED projector 3D printing

Radical chemistry is a very convenient way to produce polymer materials. Here an application of a particular photoinduced radical chemistry is illustrated. Seven new carbazole derivatives Cd1–Cd7 are incorporated and proposed as high performance near-UV photoinitiators for both the free radical polymerization (FRP) of (meth)acrylates and the cationic polymerization (CP) of epoxides utilizing Light Emitting Diodes LEDs @405 nm. Excellent polymerization-initiating abilities are found and high final reactive function conversions are obtained. Interestingly, these new derivatives display much better near-UV polymerization-initiating abilities compared to a reference UV absorbing carbazole (CARET 9H-carbazole-9-ethanol) demonstrating that the new substituents have good ability to red shift the absorption of the proposed photoinitiators. All the more strikingly, in combination with iodonium salt, Cd1–Cd7 are likewise preferred as cationic photoinitiators over the notable photoinitiator bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide (BAPO) for mild irradiation conditions featuring their remarkable reactivity. In particular their utilization in the preparation of new cationic resins for LED projector 3D printing is envisioned. A full picture of the included photochemical mechanisms is given.