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276685

Sigma-Aldrich

Methacrylic anhydride

contains 2,000 ppm topanol A as inhibitor, ≥94%

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Synonym(s):
Methacrylic acid anhydride
Linear Formula:
[H2C=C(CH3)CO]2O
CAS Number:
Molecular Weight:
154.16
Beilstein/REAXYS Number:
1761982
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

≥94%

form

liquid

contains

2,000 ppm topanol A as inhibitor

refractive index

n20/D 1.453 (lit.)

bp

87 °C/13 mmHg (lit.)

density

1.035 g/mL at 25 °C (lit.)

SMILES string

CC(=C)C(=O)OC(=O)C(C)=C

InChI

1S/C8H10O3/c1-5(2)7(9)11-8(10)6(3)4/h1,3H2,2,4H3

InChI key

DCUFMVPCXCSVNP-UHFFFAOYSA-N

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1 of 4

This Item
155721125733259926
Methacrylic anhydride contains 2,000 ppm topanol A as inhibitor, ≥94%

276685

Methacrylic anhydride

Methacrylic acid contains 250 ppm MEHQ as inhibitor, 99%

155721

Methacrylic acid

Phthalic anhydride ReagentPlus®, 99%

125733

Phthalic anhydride

Itaconic anhydride 95%

259926

Itaconic anhydride

density

1.035 g/mL at 25 °C (lit.)

density

1.015 g/mL at 25 °C (lit.)

density

-

density

-

bp

87 °C/13 mmHg (lit.)

bp

163 °C (lit.)

bp

284 °C (lit.)

bp

114-115 °C/12 mmHg (lit.)

refractive index

n20/D 1.453 (lit.)

refractive index

n20/D 1.431 (lit.)

refractive index

-

refractive index

-

form

liquid

form

liquid

form

flakes

form

solid

contains

2,000 ppm topanol A as inhibitor

contains

250 ppm MEHQ as inhibitor

contains

-

contains

-

General description

Methacrylic anhydride is an organic compound derived from methacrylic acid, which belongs to the class of acrylic acids. It is primarily employed as a monomer in the production of polymers, particularly poly(methacrylic acid) and its copolymers. These polymers find applications in a wide range of industries, including bio-renewable resins, pH-sensitive hydrogels, thermosets, coatings, adhesives, and plastics, due to their excellent chemical and thermal stability. In the polymerization of methacrylic anhydride, the most common inhibitor used is Topanol A. It is typically added in small quantities (2,000 ppm) to hinder undesirable side reactions during the polymerization, ensuring controlled and high-quality polymer formation.

Application

Methacrylic anhydride can be used as a starting material to synthesize:
  • Methacrylated chondroitin sulfate pH-sensitive hydrogels by copolymerization reaction. These hydrogels can be used in drug delivery systems.
  • High-performance lignin-based thermosets.
  • Gel polymer electrolyte, which is then integrated with the cathode to form high-performance lithium-ion batteries.
Methacrylic anhydride can be also used as a precursor to synthesize bio-renewable resins for composite applications. For example, it can be used to prepare soybean oil and a eugenol-based resin system. This resin possesses high thermal stability, and good mechanical properties, which makes it a suitable matrix for the pultrusion process.

pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk_germany

WGK 2

flash_point_f

183.2 °F - closed cup

flash_point_c

84 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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Cyclopolymerization. IV. Structure of polymethacrylic anhydride and kinetics of polymerization of methacrylic anhydride.
Smets G, et al.
Journal of Polymer Science: Part A, General Papers, 2(11), 4825-4834 (1964)
A I Van Den Bulcke et al.
Biomacromolecules, 1(1), 31-38 (2001-11-17)
Dynamic shear oscillation measurements at small strain were used to characterize the viscoelastic properties and related differences in the molecular structure of hydrogels based on gelatin methacrylamide. Gelatin was derivatized with methacrylamide side groups and was subsequently cross-linked by radical
G Bahcecioglu et al.
Biomaterials, 218, 119361-119361 (2019-07-25)
A PCL/hydrogel construct that would mimic the structural organization, biochemistry and anatomy of meniscus was engineered. The compressive (380 ± 40 kPa) and tensile modulus (18.2 ± 0.9 MPa) of the PCL scaffolds were increased significantly when constructs were printed with a shifted design and circumferential
Kunyu Zhang et al.
Materials science & engineering. C, Materials for biological applications, 103, 109835-109835 (2019-07-28)
Hydrogels are promising soft materials for the delivery of therapeutic cells and cargo molecules. Inspired by mussel adhesion chemistry, hydrogels based on catechol (Cat)-modified polysaccharides have been developed to enhance hydrogel-tissue interactions. However, due to the inevitable side reactions such
Avathamsa Athirasala et al.
Scientific reports, 7(1), 3323-3323 (2017-06-14)
The requirement for immediate vascularization of engineered dental pulp poses a major hurdle towards successful implementation of pulp regeneration as an effective therapeutic strategy for root canal therapy, especially in adult teeth. Here, we demonstrate a novel strategy to engineer

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Discussion of synthetic modifications to gelatin, improving the three-dimensional (3D) print resolution, and resulting material properties.

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