- Tianqiao District, Jinan City, Shandong Province, China
- export01@jinbangch.com
- Mon to Sun: 8:00am – 6:00pm
Methacrylic acid (MAA) is a bifunctional unsaturated organic acid with the mf C₄H₆O₂ and mw 86.09. Its core molecular structure features both a carbon-carbon double bond (C=C) and a carboxyl group (-COOH): the double bond confers strong polymerization reactivity, while the carboxyl group imparts acidity, hydrophilicity, and esterification capability.
| Item | Specification |
| Melting point | 12–16°C (lit.) |
| Boiling point | 163°C (lit.) |
| Density | 1.015 g/mL at 25°C (lit.) |
| Vapor Density | >3 (vs air) |
| Vapor Pressure | 1 mmHg (20°C) |
| Refractive Index | n20/D 1.431 (lit.) |
| Flash Point | 170°F |
| Acid dissociation constant (pKa) | pK1: 4.66 (25°C) |
| Solubility | Miscible with water; readily soluble in organic solvents such as ethanol and diethyl ether. |
Methacrylic acid is used to prepare methacrylate monomers, butyl methacrylate (BMA), isobutyl methacrylate (IBMA), crosslinking monomers, and for direct polymerization/copolymerization to produce functional polymers (poly(methacrylic acid)).
Applications of Methacrylic Acid in Fine Chemicals:
– Used in the preparation of ion exchange resins.
– Copolymerization of methacrylates (e.g., sodium salts, ammonium salts) with other monomers yields polymeric surfactants for detergents, emulsifiers, and papermaking auxiliaries (e.g., sizing agents, retention aids).
– As raw materials for textile auxiliaries, synthesizing antistatic agents, softeners, and water-repellent finishes to enhance fiber wearability.
– Used in synthesizing pharmaceutical carrier materials.
– Synthesis of pesticide intermediates (e.g., herbicides and fungicides containing acrylic acid structures).
Other Specialized Applications of Methacrylic Acid:
– Small quantities of MAA directly incorporated into coating formulations to enhance adhesion.
– As a copolymerizable monomer for ink resins, improving ink dispersion, printability, and scrub resistance.
– Used in synthesizing water-based adhesives (e.g., acrylic emulsion adhesives) for bonding wood, paper, plastics, and metals, particularly suitable for eco-friendly packaging and construction adhesives;
– As a crosslinking monomer for sealants, enhancing weather resistance and sealing performance.
– Copolymerized with epoxy monomers to produce electronic encapsulation materials (for semiconductor chip packaging), improving thermal resistance and insulation properties;
– Synthesized into photoresist resins (for semiconductor lithography processes), leveraging its photosensitive polymerization characteristics to achieve precise pattern transfer.
Jinan Jinbang Chemical Co., Ltd., strategically located within the New Materials Industrial Park in Tianqiao District, Jinan City, Shandong Province, stands as a prominent chemical innovator since its establishment in 2015. Operating from a modern, expansive 37,500 m² manufacturing facility, we are dedicated to the research & development, production, and global distribution of high-performance chemical solutions.
We are always committed to delivering optimal chemical solutions for all application scenarios.
