Ethylene glycol dimethacrylate, 98%,Contains stabilizers

Product Introduction

Ethylene Glycol Dimethacrylate (EGDMA) is a low-viscosity crosslinking monomer commonly used to introduce network structures into polymer materials.

The molecule contains two methacrylate functional groups, allowing it to participate in polymerization reactions and connect polymer chains into three-dimensional crosslinked structures.

Compared with monofunctional methacrylate monomers, EGDMA provides enhanced crosslinking capability and can improve polymer rigidity, dimensional stability, solvent resistance, and mechanical performance.

Because of its excellent compatibility with acrylic and methacrylate systems, EGDMA is widely investigated in dental resin formulations, polymer composites, adhesives, coatings, and functional polymer materials.

Mechanism / Principle

EGDMA undergoes free-radical polymerization through its two methacrylate double bonds.

Under thermal initiation, chemical initiation, or photopolymerization conditions, the carbon–carbon double bonds open and participate in chain-growth polymerization.

Because each EGDMA molecule contains two reactive methacrylate groups, it can connect different polymer chains and form a crosslinked polymer network.

This crosslinking mechanism can improve:

• Polymer mechanical strength
• Dimensional stability
• Chemical resistance
• Solvent resistance
• Network density

In dental resin systems, EGDMA is commonly combined with Bis-GMA, UDMA, HEMA, photoinitiators, and inorganic fillers to adjust resin viscosity, curing behavior, and mechanical properties.

Key Research Applications

1. Dental Composite Materials

EGDMA is widely studied as a crosslinking monomer in dental composite resin systems.

It can be incorporated into resin matrices containing Bis-GMA and inorganic fillers to regulate polymer network formation, mechanical properties, polymerization behavior, and long-term stability.

2. Dental Adhesives and Bonding Systems

EGDMA is used in research on dental adhesive formulations as a multifunctional methacrylate component.

Its crosslinking ability can influence adhesive layer properties, polymerization efficiency, and resistance to degradation.

3. Dental Restorative Materials

EGDMA is relevant to resin-based restorative materials research, including composite restorative systems and light-curable dental materials.

Researchers investigate its effects on curing kinetics, conversion degree, shrinkage behavior, and mechanical performance.

4. Polymer Network Materials

Due to its two polymerizable groups, EGDMA is an important crosslinking agent for preparing three-dimensional polymer networks.

It is used in research involving polymer gels, porous polymers, and functional polymer structures.

5. Hydrogel Materials

EGDMA is commonly used as a crosslinking monomer in hydrogel preparation.

It can help control hydrogel mechanical strength, swelling behavior, network density, and structural stability.

6. UV-Curable Coatings and Resins

EGDMA can participate in UV-curing formulations to improve coating hardness, chemical resistance, and durability.

It is relevant to acrylic coatings, protective coatings, and radiation-curable resin systems.

7. Adhesives and Sealants

EGDMA can enhance the crosslinked structure of acrylic adhesive systems, improving bonding strength and environmental stability.

8. Polymer Composites

EGDMA is used in composite-material research to modify polymer matrices and improve mechanical properties through controlled crosslinking.

Advantages

• Bifunctional polymerization capability: Two methacrylate groups enable efficient crosslinking.
• Low molecular weight crosslinker: Provides effective network formation at relatively low addition levels.
• Excellent compatibility: Compatible with many acrylic and methacrylate monomers.
• Dental material relevance: Widely used in resin-based dental composite research.
• Improved polymer properties: Enhances hardness, chemical resistance, and dimensional stability.
• Hydrogel application capability: Suitable for controlled polymer network formation.
• Broad material applications: Useful in coatings, adhesives, composites, and functional polymers.

Storage & Handling

• Store in a cool, dry, and well-ventilated area.
• Protect from direct light and excessive heat.
• Recommended storage: cool and dark place, preferably below 15 °C.
• Keep container tightly closed.
• Product is commonly stabilized with HQ (hydroquinone) to reduce premature polymerization.
• Avoid contact with strong acids, strong bases, and strong oxidizing agents.
• Wear appropriate protective gloves, clothing, and eye protection during handling.
• Avoid inhalation of vapor and prolonged skin contact.

Research Areas

This product can support research, formulation development, and material innovation across the following specific industries:

• Dental Materials – Dental composite resins, restorative materials, dental adhesives, bonding systems, and resin-based dental formulations.
• Dental Restorative Materials – Crosslinked resin matrices, light-cured composites, and polymer network optimization.
• Hydrogel Materials – Biomedical hydrogels, polymer gels, swelling-control materials, and crosslinked hydrogel systems.
• Polymer Materials – Crosslinked polymers, acrylic resins, functional polymer networks, and polymer modification.
• UV-Curable Materials – Radiation-curable coatings, protective coatings, and photocurable resin systems.
• Adhesives & Sealants – Acrylic adhesives, structural bonding materials, and crosslinked adhesive systems.
• Composite Materials – Polymer composites, filler-reinforced materials, and resin matrix optimization.
• Biomedical Materials – Functional polymer networks and polymer-based biomaterial research.

Q1. What is Ethylene Glycol Dimethacrylate (EGDMA)?
EGDMA is a difunctional methacrylate monomer used as a crosslinking agent for polymer and resin systems.

Q2. Is EGDMA used in dental materials?
Yes. EGDMA is widely investigated as a crosslinking monomer in dental composite resins, adhesives, and restorative material formulations.

Q3. What is the role of EGDMA in polymer systems?
EGDMA introduces crosslinking between polymer chains, improving network strength, rigidity, and chemical resistance.

Q4. Is EGDMA a monomer or polymer?
EGDMA is a difunctional methacrylate monomer that can polymerize to form crosslinked polymers.

Q5. What is the difference between EGDMA and TEGDMA?
EGDMA contains an ethylene glycol spacer, while TEGDMA contains a longer triethylene glycol spacer, which generally provides different flexibility and viscosity characteristics.

Q6. Why is HQ added to EGDMA?
HQ acts as a polymerization inhibitor to improve storage stability and reduce premature polymerization.

Q7. How should EGDMA be stored?
Store in a cool, dark environment below 15 °C and follow supplier SDS recommendations.