2,2-Dimethoxy-2-phenylacetophenone

2,2-Dimethoxy-2-phenylacetophenone is a photoinitiator, which is used to initialise radical polymerization e.g. in the preparation of acrylate polymers.[1] Under the influence of light the molecule will form radicals which initiate the radical polymerization. It can also be used as an initiator in the process of making an integrated circuit.

White crystal, melting point 64.0-67.0 ℃, soluble in acetone, ethyl acetate, hot methanol and isopropanol, insoluble in water, easily decomposed in case of acid, stable in alkaline, photosensitive, mainly used as UV (ultra-violet ) curing agent in UV curing system, applied to ink, paper and metal paint, stored in a sealed package, protected from light and heat.

loss on drying% ≤0.5
Ignited residue% ≤0.1
Water content  ≤0.5
transparency (10% acetone solution) transparent
Benzoin residue  0.2%
Solubility (g/100g solvent 25 ℃) acetone >50 methanol 41 styrene >50 butyl acetate >50
transmission 95.0%(425nm) 96.0%(450nm) 98.0%(500nm)

It is widely used in the polymerization of acrylic acid and acrylate, the polymerization and crosslinking of unsaturated polyester. It has been applied in coatings and adhesives and mainly used as UV (ultra-violet ) curing agent in UV curing system, applied to ink, paper and metal paint.
BDK is a kind of highly efficient UV curing initiator, which is mainly used as initiator of UV curing reaction. It is also used as
(1) Used as analytical reagent;
(2) Used for Photosensitive resin printing;
(3)Used as UV curable coatings and inks.

solid

2,2-Dimethoxy-2-phenylacetophenone (cas# 24650-42-8) is a compound useful in organic synthesis.