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M188

Sigma-Aldrich

Maleic anhydride

99%

Sinonimo/i:

2,5-Furandione

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About This Item

Formula empirica (notazione di Hill):
C4H2O3
Numero CAS:
108-31-6
Peso molecolare:
98.06
Beilstein:
106909
Numero CE:
203-571-6
Numero MDL:
MFCD00005518
Codice UNSPSC:
12162002
ID PubChem:
24896701
NACRES:
NA.23

Densità del vapore

3.4 (vs air)

Livello qualitativo

200

Tensione di vapore

0.16 mmHg ( 20 °C)

Saggio

99%

Temp. autoaccensione

870 °F

Limite di esplosione

7.1 %

P. ebollizione

200 °C (lit.)

Punto di fusione

51-56 °C (lit.)

Stringa SMILE

O=C1OC(=O)C=C1

InChI

1S/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H
FPYJFEHAWHCUMM-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

Maleic anhydride (MA) belongs to the class of monomers known as cyclic dicarboxylic anhydrides. It is commonly used in polymerization reactions to produce various types of polymers such as poly(maleic anhydride) (PMA), maleic anhydride-based resins, and maleic anhydride-butadiene copolymers (MABS), etc. These MA-based polymers find applications in various fields including, polymer blends and coatings, epoxy resins, semiconductor devices, secondary batteries, lithium-ion batteries, resin films, glass fiber, coatings, packaging, water treatment, and drug delivery systems. Additionally, MA can be grafted onto other polymers, to enhance their performance and compatibility with other materials. Grafted polymers find applications in the automotive, packaging, and construction industries. Maleic anhydride is also used as an electron-acceptor monomer in the development of various antimicrobial polymers due to their reactive double bonds and reactive anhydride groups.

The structure of maleic acid consists of four carbon molecules along with carboxylate groups on either ends, with a double bond between the central carbon atoms. The anhydride of maleic acid has five atoms in its cyclic molecule, the unsaturated bond undergoes free radical polymerization in the presence of an initiator.

Applicazioni

Maleic anhydride can be used as a monomer:
  • In the grafting process of high-density polyethylene (HDPE) by the monomer microencapsulation technique, which enables the introduction of enhanced functionality and improved properties to the polymer for functional coatings, membranes, or surface treatments, adhesives, and coatings.
  • In the functionalization of polylactic acid (PLA) and acts as a coupling agent in natural fiber biocomposites. The functionalization improves the compatibility and interfacial adhesion between PLA and natural fibers, leading to enhanced mechanical properties and expanded applications of the resulting biocomposite materials.
  • Maleic anhydride may be used in the synthesis of unsaturated polyester resins and as a reactant in synthesizing important products such as agricultural chemicals, lubricant additives, and food acidulatents.

Stato fisico

briquettes

Avvertenze

Danger

Indicazioni di pericolo

H302,H314,H317,H334,H372

Classi di pericolo

Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1A - STOT RE 1 Inhalation

Organi bersaglio

Respiratory system

Rischi supp

EUH071

Codice della classe di stoccaggio

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

217.4 °F - closed cup

Punto d’infiammabilità (°C)

103 °C - closed cup

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificati d'analisi (COA)

Lot/Batch Number
STBK3764
STBJ2269
STBH9257
STBH7372
STBH3642

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Polymers, 11(3) (2019-04-10)
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In this work, rigid polyurethane (PUR) foams were prepared by incorporating 2 wt% of eucalyptus fibers. The eucalyptus fibers were surface-modified by maleic anhydride, alkali, and silane (triphenylsilanol) treatment. The impact of the modified eucalyptus fibers on the mechanical, thermal
Frita Yuliati et al.
Polymers, 12(8) (2020-08-06)
Low cross-link density thermally reversible networks were successfully synthesized from jatropha and sunflower oils. The oils were epoxidized and subsequently reacted with furfurylamine to attach furan groups onto the triglycerides, preferably at the epoxide sites rather than at the ester
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