Poly(glycidyl methacrylate)

Poly(glycidyl methacrylate) (PGMA) is a classic epoxy-functional polyacrylate derived from glycidyl methacrylate monomer. Distinguished by pendant oxirane rings on each repeat unit, PGMA undergoes facile ring-opening modification with amines, thiols and carboxylic acids to fabricate customized functional materials. It exhibits rigid mechanical performance, outstanding thermal stability and high transparency. Widely applied in crosslinkable coatings, adhesion promoters, bioseparation microspheres, wastewater adsorbents and electronic surface modifiers, PGMA serves as a universal reactive scaffold for industrial manufacturing and advanced material research.

Form: solid

Abbreviation: PGMA

CAS Number: 25067-05-4

Category: Polymer/Macromolecule

Molecular Weight: Mn 40,000-80,000

Molecular Formula: [C₇H₁₀O₃]n

Monomer Raw Material: Glycidyl methacrylate (GMA)

Chemical Structure: Linear methacrylate polymer backbone with pendant strained three-membered epoxy (oxirane) rings on each repeating unit. It exists as white fine powder in commercial homopolymer grade, soluble in common organic solvents such as THF, chloroform and acetone, insoluble in water and aliphatic alkanes.

Description: The polymer product is a hydrophobic material that is insoluble in water or other polar solvents.

Synonyms: GLYCIDYL METHACRYLATE POLYMER;POLY(GLYCIDYL METHACRYLATE);2-Propenoicacid,2-methyl-,oxiranylmethylester,homopolymer;POLY(GLYCIDYL METHACRYLATE), 10% SOLUTION IN MEK;Poly(glycidyl methacrylate) Mn 40,000-80,000

Melting Point: 274-280 °C

Application: Universal Platform for Surface Modification Employing Grafter Polymer Layers

Features And Benefits: This product has good hydrophobicity to meet your specific application needs

Core Physical & Chemical Properties

Thermal & Mechanical Properties

Glass transition temperature (Tg): 80–120 °C, varying with molecular weight and copolymer ratio

Rigid thermoplastic with high dimensional stability; tensile strength up to 70 MPa, Young’s modulus ~3.5 GPa

Good thermal aging resistance, no obvious decomposition below 200 °C

High optical transparency, refractive index 1.51–1.54, suitable for optical thin films

Signature Chemical Reactivity (Core Advantage)

The pendant epoxy groups are the unique functional sites supporting versatile post-polymerization modification via nucleophilic ring-opening reactionsRSC Publis...:

Amine–epoxy reaction: graft primary/secondary amines for cationic functionalization

Thiol–epoxy click reaction: rapid crosslinking and surface immobilization

Carboxylic acid–epoxy ring opening: introduce hydrophilic carboxyl groups

Hydrolysis: convert epoxy into dihydroxyl groups to boost water compatibility

Self-crosslinking at elevated temperature for durable coating films

General Resistance

Resistant to dilute acids, weak alkalis and non-polar solvents; compatible with most epoxy curing agents, acrylic resins and inorganic fillers.