1,4-Butanediol dimethacrylate Chemical Properties

Melting point:

−117 °C(lit.)

Boiling point:

132-134 °C/4 mmHg (lit.)

Density 

1.023 g/mL at 25 °C (lit.)

vapor density 

2.09 (vs air)

vapor pressure 

430 mm Hg ( 25 °C)

refractive index 

n20/D 1.456(lit.)

Flash point:

38 °F

storage temp. 

2-8°C

solubility 

Chloroform (Sparingly), Methanol (Slightly)

form 

Liquid

pka

9.8(at 25℃)

color 

Clear colorless to slightly yellow

Water Solubility 

243mg/L at 20℃

Merck 

14,9710

BRN 

956566

LogP

3.1 at 20℃

CAS DataBase Reference

2082-81-7(CAS DataBase Reference)

NIST Chemistry Reference

1,4-Butylene glycol dimethacrylate(2082-81-7)

EPA Substance Registry System

1,4-Butanediol dimethacrylate (2082-81-7)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38-43

Safety Statements 

3-16-26-29-39-36/37/39

RIDADR 

UN 2924 3/PG 2

WGK Germany 

2

RTECS 

PA0350000

F 

9-34

TSCA 

TSCA listed

HazardClass 

3

PackingGroup 

I

HS Code 

29161400

Hazardous Substances Data

2082-81-7(Hazardous Substances Data)

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

1,4-Butanediol dimethacrylate Usage And Synthesis

Description

Sensitization to 1,4-butanediol dimethacrylate (BUDMA) was reported in dental technieians, with cross reactivity to methylmethacrylate.

Chemical Properties

1,4-Butanediol dimethacrylate has a clear liquid appearance and is used as a cross-linking methacrylic monomer of polymers. They are present in dental composite materials, sealants, and inks. 1,4-Butanediol dimethacrylate is a non flammable liquid, with a low volatility and a moderatesolubility in water.

Uses

cross-linking methacrylic monomer for use in dental-composite materials, sealants, prostheses, etc.

Application

1,4-Butanediol dimethacrylate is an important crosslinking agent, which can be used as a crosslinking agent for rubber and plastics, a modifier for rubber and synthetic resins, an adhesive for acrylic sheets, and a plasticizer for glass fibers. It is widely used in injection moldings, rubber, optical plastics, adhesives, dental materials, wire and cable coatings, etc. At present, the preparation of 1,4-butanediol dimethacrylate is usually carried out by a reactive distillation ester exchange process in the presence of a catalyst and an inhibitor. The purpose of adding a catalyst and an inhibitor is to accelerate the reaction process and prevent polymerization during the reaction and distillation under the action of light and heat.

Synthesis

Methyl methacrylate and 1,4-butanediol are taken as raw materials. The following steps conclude: reacting the methyl methacrylate with the 1,4-butanediol to prepare the product of 1,4-butanediol dimethacrylate with the purity of over 99.0 percent by adopting a reaction distillation ester exchange process in the presence of a catalyst and a polymerization inhibitor, wherein the catalyst is an organic tin catalyst. The polymerization inhibitor is a composite polymerization inhibitor.

1,4-Butanediol dimethacrylate(2082-81-7)Related Product Information

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