SINOMER® DDDMA (1,12-Dodecanediol Dimethacrylate) is a difunctional methacrylic monomer featuring a long C12 hydrophobic spacer chain between two reactive methacrylate end groups. This unique molecular structure provides enhanced molecular mobility and flexibility, making it an ideal crosslinking monomer for applications requiring a balance of flexibility, toughness, and durability. It is widely used in biomaterials, dental composites, coatings, sealants, and specialty adhesives.
SINOMER® DDDMA
(Long-Chain Hydrophobic Crosslinking Monomer for Flexible, Fast-Curing Systems)
Chemical Name: 1,12-Dodecanediol Dimethacrylate;1,12-dodecanediyl bismethacrylate
CAS No.: 72829-09-5
MF:C20H34O4
Molecular Structure:

Overview:
SINOMER® DDDMA (1,12-Dodecanediol Dimethacrylate) is a difunctional methacrylic monomer featuring a long C12 hydrophobic spacer chain between two reactive methacrylate end groups. This unique molecular structure provides exceptional flexibility, low viscosity, and enhanced molecular mobility. The long hydrophobic backbone effectively reduces curing shrinkage while imparting excellent weatherability and surface characteristics to the cured polymer matrix.
SINOMER® DDDMA exhibits fast curing response and non-yellowing properties, making it an ideal crosslinking monomer for applications requiring a balance of flexibility, toughness, and durability. It is widely adopted in biomaterials, dental composites, coatings, sealants, and specialty adhesives.
Appearance | Light yellow transparent liquid |
Color (Pt-Co) | ≤ 100 |
Viscosity (Tu-4 cup, s @ 25°C) | 11 – 13 |
Acid Value (mg KOH/g) | ≤ 1.5 |
Long C12 hydrophobic spacer chain for enhanced flexibility
Fast UV/EB curing response
Low viscosity for easy formulation
Non-yellowing cured films with high gloss
Low curing shrinkage
Excellent weatherability and durability
Improved surface characteristics and metal adhesion
Flexible UV-curable films – Provides flexibility and toughness to thin-film coatings
Dental materials – Used in dental composites, sealants, and restorative materials
3D printing resins – Improves flexibility and impact resistance in photopolymer formulations
Coatings – Radiation-curable coatings requiring enhanced weatherability, flexibility, and metal adhesion
Adhesives & sealants – Specialty UV adhesives and sealants for flexible substrates
Inks & toners – Improves surface characteristics and durability
Plastic lenses – Transparent resin formulations for optical applications
Nail strengthening compositions – UV-curable nail care products
20kg or 200 kg/drum
Being kept in dry, clean warehouse with well ventilation.
Avoid exposing to light and heating.
Protecting the product from leakage, rain and insolation during transportation.
We offer a variety of options to help you find the right product for your application
Provide formulation optimization support for water-based/solvent-based systems
Full coverage of REACH, FDA, and GB standards
99.8% on-time delivery rate, 10,000-ton production capacity guarantee