Description

Styrene/Allyl Alcohol Copolymer is a synthetic polymer formed from the copolymerization of styrene and allyl alcohol monomers. This versatile material is valued for its ability to introduce reactive hydroxyl groups into a polymer backbone, enabling further chemical modification and cross-linking. It serves as a crucial intermediate and performance additive in the production of high-performance coatings, adhesives, and specialty resins for industries including automotive, electronics, and packaging.

Application

• As a reactive polyol component in the formulation of thermosetting coatings and paints, enhancing hardness and chemical resistance.
• As a cross-linking agent or chain extender in the synthesis of polyurethane resins for adhesives, sealants, and elastomers.
• In the production of alkyd resins for improved drying times and film properties in industrial and decorative coatings.
• As a modifier for epoxy systems to increase flexibility and impact resistance.
• In the formulation of printing inks and overprint varnishes to improve adhesion and gloss.
• As a component in fiberglass-reinforced plastics (FRP) and composite materials.
• For the manufacture of specialty dispersants and grinding aids in pigment preparations.

Basic Information

Product Name	Styrene/Allyl Alcohol Copolymer
CAS No.	25119-62-4
Molecular Formula	(C8H8·C3H6O)n
Molecular Weight	Varies by grade (typically 1,000 - 10,000 g/mol)
Synonyms	Styrene-allyl alcohol copolymer; Poly(styrene-co-allyl alcohol); Allyl alcohol-styrene copolymer; SAA resin; Reactive styrenic polyol; 2-Propen-1-ol, polymer with ethenylbenzene; Joncryl 587; SMA® resin (hydroxyl-functional grades)
EINECS	246-658-0

Quality Control

Our Styrene/Allyl Alcohol Copolymer is manufactured under a strict quality management system. Each batch is analyzed to ensure consistent hydroxyl value, molecular weight distribution, viscosity, and residual monomer content. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee product integrity and traceability for your formulation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials such as strong oxidizing agents. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white beads or powder
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 5.0
Softening Point (°C)	Contact for details
Molecular Weight (Mw)	Contact for details
Glass Transition Temperature (Tg)	Contact for details
Residual Monomer	≤ 0.5%
Moisture Content	≤ 1.0%

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