1985-51-9

Basic information

• Product Name: Neopentanediol dimethacrylate
• Synonyms: DIMETHYLTRIMETHYLENE GLYCOL DIMETHACRYLATE;2,2-DIMETHYLPROPANEDIOL DIMETHACRYLATE;2,2-DIMETHYL-1,3-PROPANEDIOL DIMETHACRYLATE;1,3-BIS(METHACRYLOYLOXY)-2,2-DIMETHYLPROPANE;NEOPENTYL GLYCOL DIMETHACRYLATE;2,2-Dimethylpropanedimethacrylate;2-Propenoicacid,2-methyl-,2,2-dimethyl-1,3-propanediylester;2,2-dimethyl-1,3-propanediyl bismethacrylate
• CAS NO: 1985-51-9
• Molecular Formula: C₁₃H₂₀O₄
• Molecular Weight: 240.3
• EINECS: 217-856-8
• Mol File: 1985-51-9.mol
• Article Data: 7

Chemical Properties

• Melting Point: 5°C
• Boiling Point: 87 °C0.6 mm Hg(lit.)
• Flash Point: >230 °F
• Appearance: /
• Density: 1.003 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.002mmHg at 25°C
• Refractive Index: n20/D 1.453(lit.)
• CAS DataBase Reference: Neopentanediol dimethacrylate(CAS DataBase Reference)
• NIST Chemistry Reference: Neopentanediol dimethacrylate(1985-51-9)
• EPA Substance Registry System: Neopentanediol dimethacrylate(1985-51-9)

Safety Data

• Hazard Codes: Xi
• Statements: 43
• Safety Statements: 36/37
• RIDADR: 2810
• WGK Germany: 3
• HazardClass: 6.1(b)
• PackingGroup: III
• Hazardous Substances Data: 1985-51-9(Hazardous Substances Data)

Usage

General Description

Neopentanediol dimethacrylate is a chemical compound commonly used as a crosslinker in the production of polymers and resins. It is a diester of neopentanediol and methacrylic acid, and its molecular structure contains two methacrylate groups. The chemical is known for its high reactivity and ability to form strong, durable bonds with other molecules, making it a popular choice in the manufacturing of adhesives, coatings, and dental materials. It is also used in the production of 3D printing resins and as a component in the formulation of UV-curable coatings and inks. Additionally, Neopentanediol dimethacrylate is known for its low volatility, high resistance to chemicals, and good mechanical properties, making it a versatile and valuable ingredient in various industrial applications.

InChI:InChI=1/C13H20O4/c1-8(2)10(14)16-12(13(5,6)7)17-11(15)9(3)4/h12H,1,3H2,2,4-7H3

Upstream product

• 126-30-7 2,2-Dimethyl-1,3-propanediol 
• 80-62-6 methacrylic acid methyl ester 
• 79-41-4 poly(methacrylic acid) 

Relevant articles and documents

Preparation method of neopentyl glycol dimethacrylate

The invention provides a preparation method of neopentyl glycol dimethacrylate. The preparation method comprises the steps that under the effect of a catalyst on methylbenzenesulfonic acid, in presence of a polymerization inhibitor and an azeotropic water-carrying agent, neopentyl glycol and methacrylic acid react with each other for 4-7 hours at 78-92 DEG C to synthesize neopentyl glycol dimethacrylate, wherein the mole ratio of methacrylic acid to neopentyl glycol is 2.15:1, the dosage of the azeotropic water-carrying agent n-hexane is 45% of the total mass of the reactants, the mass of thecatalyst is 4% of the total mass of the reactants, and the dosage of the polymerization inhibitor phenothiazine is 0.1% of the total mass of the reactants. The synthesis method of neopentyl glycol dimethacrylate is simple in process, high in yield and low in chromaticity, the adopted catalyst is low in price and high in stability, and the method has broad application prospects.

Hydroxy functional acrylate and methacrylate monomers prepared via lipase-catalyzed transacylation reactions

Candida antarctica lipase B (CAL-B, Novozyme 435) catalyzes the transacylation of methyl acrylate and methyl methacrylate with diols and triols in 2-methyl-2-butanol at 50 °C. Under the experimental conditions, up to 70 mol% of the acyl donor methyl acrylate was converted. Methyl methacrylate is the less efficient acyl donor (up to 60 mol%) due to the higher sterical hindrance in the enzymatic transacylation. Under the reaction conditions high yields of the mono-acylated products are obtained, which contain minor amounts of bis(meth)acrylates. In addition it was observed that Novozyme 435 catalyzes regioselectively the acylation of the primary hydroxyl groups. In comparison with the chemical catalyzed route no selectivity was observed for unsubstituted diols. For substituted diols more mono-acylated product was formed in the lipase-catalyzed reaction than in the chemical catalyzed reaction.

HYDROXYL-CONTAINING MONOMER, POLYMER, RESIST COMPOSITION, AND PATTERNING PROCESS

A hydroxyl-containing monomer of formula (1) is provided wherein R1 is H, F, methyl or trifluoromethyl, R2 and R3 are monovalent C1-C15 hydrocarbon groups, or R2 and R3 may form an aliphatic ring. The monomers are useful for the synthesis of polymers which have high transparency to radiation of up to 500 nm and the effect of controlling acid diffusion so that the polymers may be used as a base resin to formulate radiation-sensitive resist compositions having a high resolution.