Packing:50kg,200kg,250kg drum

Specification:  CAS NO.:2867-47-2

Appearance:colorless clear liquid Assay：99% min by GC IR Identity: conform to standard HNMR： conform to standard carbon spectrum: conform to standard Water by K. F.:0.5% max or as per the customer’s request Loss on drying:0.5% max. or as per the customer’s request

Used mainly in

Polymer material synthesis: used as functional monomers to prepare polymers, such as cationic flocculants, superabsorbent resins, etc.

Coatings and adhesives: used as brightening agents and adhesion promoters in automotive coatings, architectural latex paints, and acrylic floor paints; It can also be used for wear-resistant road marking paint.

Water treatment: used as a flocculant, retention and filtration aid, and demulsifier for purifying wastewater.

Personal care products: After copolymerization with vinylpyrrolidone, they can be used as film-forming agents for styling hair gel.

Industrial additives: used for synthesizing anti-static agents, lubricant cleaning dispersants, leather treatment agents, dye/pigment coloring agents, cationic precipitants, etc.

Electronics and printing industry: used as functional intermediates for special coatings or inks.

Synthesis lines:

According to authoritative public information, the typical synthesis method of dimethylaminoethyl methacrylate (CAS 2867-47-2) is as follows:

1. Esterification method (mainstream industrial route)

Using methyl methacrylate (or ethyl methacrylate) and 2- (dimethylamino) ethanol (DMAE) as raw materials, ester exchange reaction is carried out in the presence of a catalyst (such as tetrabutyl titanate).

Reaction formula:

CH?=C(CH?)COOCH? + HOCH?CH?N(CH?)? →CH?=C(CH?)COOCH?CH?N(CH?)? + CH?OH

2. Direct esterification method

Methacrylic acid and 2- (dimethylamino) ethanol are directly esterified under acidic catalysts (such as p-toluenesulfonic acid) and dehydration conditions.

The generated water needs to be removed to push the equilibrium towards the product direction.

3. Other methods

Some literature mentions the reaction of methacryloyl chloride with DMAE under alkaline conditions, but this method produces many by-products and has limited industrial applications.

During the synthesis process, it is usually necessary to add polymerization inhibitors (such as MEHQ or hydroquinone) to prevent vinyl self polymerization, and the product is purified by vacuum distillation