Identification
Name		Allyl methacrylate
Synonyms		methylacrylic acid-allyl ester； 2-Methyl-2-propenyl 2-propenoate； prop-2-enyl 2-methylprop-2-enoate； Acryester A； prop-2-enyl 2-methylprop-2-enoate；
Molecular Structure
Molecular Formula		C7H10O2
Molecular Weight		126.15
CAS Registry Number		96-05-9
EINECS		202-473-0
Properties
Density		0.93
Melting point		-65 ºC
Boiling point		144 ºC
Refractive index		1.435-1.437
Flash point		37 ºC
Water solubility		4 g/L (20 ºC)
Safety Data
Hazard Symbols		T;N
Risk Codes		R10;R21/22;R23;R50
Safety Description		S36/37;S45;S61
Transport Information		UN 2929

It is widely used as a comonomer, grafting monomer and crosslinking agent for tooth repair in the preparation of plexiglass.

Allyl methacrylate is an important crosslinking agent, which can provide the second stage of effective bifunctional crosslinking, with good chemical resistance, impact strength, adhesion, hardness and low water shrinkage. Used in dental materials, industrial paints, organic silicon intermediates, light stabilizers, optical polymers, elastomers and some vinyl and acrylic polymer systems.

Production method of allyl methacrylate:

It can be obtained by the reaction of acrylamide and allyl alcohol under the action of concentrated acid and H2O2, or it can be obtained by transesterification of allyl acetate and methyl methacrylate. It can also be prepared by reacting methacrylic acid with allyl alcohol, using p-toluenesulfonic acid as a catalyst and refluxing in the presence of the polymerization inhibitor hydroquinone. The water produced is continuously removed during the reaction. After the reaction is completed, the excess is recovered by fractional distillation. Allyl alcohol, the product is purified by distillation under reduced pressure.