Description

Poly(2-Hydroxyethyl Methacrylate) is a synthetic, biocompatible polymer derived from the monomer 2-hydroxyethyl methacrylate (HEMA). This material is valued for its unique combination of hydrophilicity, optical clarity, and excellent film-forming properties, making it a critical component in advanced material science. It is essential for manufacturers in the medical device, contact lens, and controlled-release pharmaceutical industries seeking reliable, high-purity polymer matrices. CAS No. 25249-16-5.

Application

• Hydrogel Contact Lenses: Primary polymer matrix for soft contact lenses due to its high water content, oxygen permeability, and optical clarity.
• Medical Device Coatings: Used to create hydrophilic, biocompatible coatings on catheters, guide wires, and other implants to reduce friction and improve biocompatibility.
• Drug Delivery Systems: Serves as a key component in hydrogels and microspheres for the controlled and sustained release of pharmaceutical actives.
• Dental Composites & Adhesives: Employed as a co-monomer or additive to enhance bonding strength, durability, and water compatibility in restorative dentistry.
• Biomedical Hydrogels: Used in tissue engineering scaffolds, wound dressings, and biosensor membranes that require a hydrated, cell-friendly environment.
• Adhesives & Sealants: Imparts flexibility, adhesion, and moisture resistance in specialized industrial and biomedical adhesive formulations.

Basic Information

Product Name	Poly(2-Hydroxyethyl Methacrylate)
CAS No.	25249-16-5
Molecular Formula	(C6H10O3)n
Molecular Weight	Varies (Polymer)
Synonyms	Poly(HEMA); PHEMA; 2-Hydroxyethyl methacrylate polymer; Poly(2-hydroxyethyl methacrylate); HEMA polymer; Polyhydroxyethylmethacrylate; Poly(ethylene glycol methacrylate); Glycol methacrylate polymer
EINECS	Contact for details

Quality Control

Our Poly(2-Hydroxyethyl Methacrylate) is produced under a strict quality management system. Each batch is tested to ensure consistent molecular weight distribution, residual monomer content, and physicochemical properties critical for sensitive applications like medical devices and pharmaceuticals. Certificates of Analysis (COA) documenting purity, viscosity, and other key parameters are available upon request to support your regulatory and quality assurance needs.

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); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White powder or granules
Identification (IR)	Conforms
Assay (as Polymer)	> 98.0%
Residual Monomer (HEMA)	< 0.5%
Moisture Content	< 2.0%
Molecular Weight (Mw)	Customizable (e.g., 20k - 300k Da)
Glass Transition Temp (Tg)	~ 55 - 110 °C

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