Description

Poly(Methyl Methacrylate-Co-Methacrylic Acid) is a versatile copolymer that combines the structural integrity of PMMA with the reactive functionality of methacrylic acid. This material matters for its tunable properties, including enhanced adhesion, improved compatibility with polar substrates, and the ability to be further modified via its carboxylic acid groups. Industries requiring specialty coatings, advanced adhesives, or functional polymer matrices will find this copolymer essential for developing high-performance materials.

Application

• As a key component in high-performance industrial and automotive coatings for improved adhesion and durability.
• In the formulation of pressure-sensitive adhesives and laminating agents where polar interactions are critical.
• As a dispersant or compatibilizer in pigment masterbatches and composite materials.
• For the production of ion-exchange resins and membranes used in water purification and separation technologies.
• As a rheology modifier or thickener in aqueous systems for paints, inks, and personal care products.
• In the development of drug delivery systems and biomedical devices where controlled release or specific surface properties are needed.
• As a reactive intermediate for further chemical modification to create custom polymer architectures.

Basic Information

Product Name	Poly(Methyl Methacrylate-Co-Methacrylic Acid)
CAS No.	25086-15-1
Molecular Formula	(C₅H₈O₂)ₓ(C₄H₆O₂)ᵧ
Molecular Weight	Varies by monomer ratio
Synonyms	P(MMA-co-MAA); Methyl methacrylate methacrylic acid copolymer; Methacrylic acid-methyl methacrylate copolymer; MMA/MAA copolymer; Acrylic copolymer; Poly(methyl methacrylate-methacrylic acid); Eudragit® (related series); EUDRAGIT L/S (specific types)
EINECS	Contact for details

Quality Control

Our Poly(Methyl Methacrylate-Co-Methacrylic Acid) is manufactured under a strict quality management system. Each batch is characterized for critical parameters including monomer ratio, acid value, molecular weight distribution, and glass transition temperature (Tg) to ensure batch-to-batch consistency. Certificates of Analysis (COA) detailing these specifications are provided and available upon request, supporting applications in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent moisture absorption, which can affect performance. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to structure
Methacrylic Acid Content	5% - 50% (Typical, customizable)
Acid Value	30 - 350 mg KOH/g (Depending on grade)
Molecular Weight (Mw)	50,000 - 500,000 g/mol (Depending on grade)
Glass Transition Temp (Tg)	60°C - 150°C (Depending on composition)
Residual Monomers	< 0.5% (by GC)
Moisture Content	< 3.0% (by KF Titration)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.