DMPA Dimethylolpropionic Acid CAS 4767-03-7

DMPA is a white crystalline compound containing two hydroxymethyl groups and one carboxyl group. It is commonly used as a hydrophilic chain extender in waterborne polyurethane and other waterborne polymer systems, helping introduce carboxyl groups and improve water dispersibility after neutralization.

Brand:
sinograce
item no.:
DMPA
Payment:
L/C, D/A, D/P, T/T, MoneyGram, PayPal and Oth
product origin:
China Anhui
shipping port:
Shanghai And Other Ports
Lead Time：
7 days

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DMPA Dimethylolpropionic Acid (TDS).pdf

Product Detail

Description
DMPA is a multifunctional molecule containing both hydroxyl and carboxyl groups. After neutralization with an alkali, its free carboxylic acid group helps improve the water solubility or water dispersibility of resins.

The introduction of polar functional groups can improve coating adhesion, enhance the dyeability of synthetic fibers and increase the alkali solubility of coating resins. DMPA is suitable for use in waterborne polymer and coating systems.

DMPA is an odorless, free-flowing, white crystalline solid.

Type
Carboxylic Acid-Type Hydrophilic Chain Extender

Key features

• Contains both hydroxyl and carboxyl functional groups
• Functions as a hydrophilic chain extender
• Helps improve resin water dispersibility after neutralization
• Suitable for waterborne polyurethane systems
• Helps improve coating adhesion
• Odorless, free-flowing white crystalline solid

Typical properties

Hydroxyl content, wt %： >24

Neutralizing equivalence, g/eq： <141

Ashes of Na2O, wt %： <0.03

Impurities, wt %： <0.5

Water insolubles, PPM： <50

Chroma： <250

character	value
Molecular weight	134.13
Acid value, mg KOH/g	410 -415
Melting point, ° C.	170-180
Flash point	220 ° C
Decomposition temperature	230 ° C
Solvent solubility, g / 100 g	25 ° C
Water	11
Acetone	2.3
Ethanol	Insoluble

Application

DMPA is used as a hydrophilic chain extender and functional monomer in:

• Waterborne polyurethane dispersions
• Water-soluble alkyd and polyester resins
• Epoxy ester coatings
• Polyurethane elastomers
• Powder coating resin systems

Storage and handling

- Available in 25 kg packaging

- Store in the original tightly closed packaging at 5–40°C.

- Shelf life: 12 months under recommended storage conditions.

- Transported as non-dangerous goods.

DMPA Dimethylolpropionic Acid CAS 4767-03-7

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DMPA Dimethylolpropionic Acid 2,2-Bis(hydroxymethyl)propionic Acid DMPA CAS 4767-03-7 Hydrophilic Chain Extender Chain Extender for Waterborne Polyurethane

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DMPA Dimethylolpropionic Acid CAS 4767-03-7