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276685

Sigma-Aldrich

Methacrylic anhydride

contains 2,000 ppm topanol A as inhibitor, ≥98%

Sinonimo/i:

Methacrylic acid anhydride

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CHF 69.10
500 ML
CHF 91.20

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100 ML
CHF 69.10
500 ML
CHF 91.20

About This Item

Formula condensata:
[H2C=C(CH3)CO]2O
Numero CAS:
760-93-0
Peso molecolare:
154.16
Beilstein:
1761982
Numero MDL:
MFCD00008586
Codice UNSPSC:
12162002
ID PubChem:
24856712
NACRES:
NA.23

CHF 69.10

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Saggio

≥98%

Stato

liquid

contiene

2,000 ppm topanol A as inhibitor

Indice di rifrazione

n20/D 1.453 (lit.)

P. ebollizione

87 °C/13 mmHg (lit.)

Densità

1.035 g/mL at 25 °C (lit.)

Stringa SMILE

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
DCUFMVPCXCSVNP-UHFFFAOYSA-N

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Descrizione generale

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.

Applicazioni

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.

Pittogrammi

CorrosionExclamation mark
GHS05,GHS07

Avvertenze

Danger

Indicazioni di pericolo

H302 + H332,H315,H317,H318,H335

Classi di pericolo

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

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

10 - Combustible liquids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

183.2 °F - closed cup

Punto d’infiammabilità (°C)

84 °C - closed cup

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
SDBB0992
STBL0281
STBL0280
STBK9909
STBL0279

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Notes-Acrylic and Methacrylic Anhydrides.
Brotherton T, et al.
The Journal of Organic Chemistry, 26(4), 1283-1284 (1961)
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
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)
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
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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