Description

Poly(Styrene/Methyl Methacrylate) is a high-performance copolymer that combines the beneficial properties of polystyrene and poly(methyl methacrylate). This material is engineered to deliver an optimal balance of clarity, rigidity, and processability for demanding industrial applications. It is a critical raw material for manufacturers in the optics, electronics, and specialty plastics sectors seeking materials with consistent quality and reliable performance.

Application

• Optical Components: Used in the production of light guides, lenses, and diffusers where clarity and light transmission are critical.
• Electronic Housings & Displays: Serves as a durable, transparent material for display screens, instrument panels, and protective covers.
• Specialty Coatings & Films: Formulated into high-gloss, scratch-resistant coatings and cast films for decorative and protective layers.
• Medical Device Components: Utilized for non-implantable medical parts requiring clarity, sterilizability, and dimensional stability.
• Automotive Lighting: An ideal material for interior and exterior lighting fixtures, including lenses and reflectors.
• Consumer Goods & Appliances: Found in transparent housings, knobs, and decorative elements requiring a premium aesthetic finish.
• Adhesives & Sealants: Acts as a key polymer in formulations requiring strong adhesion and optical clarity.
• Industrial Modifiers: Used as a processing aid or property modifier to enhance the performance of other polymer blends.

Basic Information

Product Name	Poly(Styrene/Methyl Methacrylate)
CAS No.	25657-58-3
Molecular Formula	(C8H8.C5H8O2)n
Molecular Weight	Varies by grade and composition
Synonyms	Styrene-Methyl Methacrylate Copolymer; Poly(Styrene-co-Methyl Methacrylate); SMA Copolymer; PS-MMA; Styrene/MMA Copolymer; Acrylic-Styrene Copolymer; Transparent Impact Copolymer; SAN-MMA Blend (common industry reference)
EINECS	Contact for details

Quality Control

Our Poly(Styrene/Methyl Methacrylate) is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as monomer ratio, molecular weight, and purity. Our quality commitment aligns with ISO 9001 standards, and we support compliance with relevant global regulations including REACH and FDA considerations for applicable grades.

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). Keep away from heat sources and open flames. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	Clear pellets or granules
Identification (IR)	Conforms to standard
Styrene Content	40 - 80% (Grade dependent)
Molecular Weight (Mw)	50,000 - 200,000 g/mol
Glass Transition Temperature (Tg)	90 - 115 °C
Light Transmittance	> 90%
Moisture Content	< 0.1%

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