Description

Polydimethylsiloxane-Diacrylamide is a specialized silicone-based macromer featuring reactive acrylamide end groups. This unique bifunctional structure is critical for introducing flexible, hydrophobic silicone segments into polymer networks, enhancing material properties. It is primarily utilized by R&D chemists and formulators in the advanced materials sector for creating high-performance, cross-linked products with tailored surface characteristics and improved durability.

Application

• Cross-linking Agent for Silicone Hydrogels: A key component in the synthesis of soft contact lenses and biomedical devices, providing oxygen permeability and comfort.
• Modifier for UV-Curable Coatings & Inks: Imparts flexibility, mar resistance, and water repellency to coatings for electronics, optical fibers, and release layers.
• Reactive Intermediate for Specialty Polymers: Used to synthesize silicone-polyurethane, silicone-epoxy, or silicone-acrylate hybrids for automotive, aerospace, and industrial sealants.
• Surface Treatment Agent: Modifies surface energy and creates low-friction, hydrophobic surfaces on textiles, membranes, and composite materials.
• Additive for 3D Printing Resins (SLA/DLP): Enhances the elongation and tear strength of printed elastomeric parts and functional prototypes.
• Adhesive & Sealant Formulations: Contributes to the flexibility, thermal stability, and adhesion properties of high-performance adhesives.

Basic Information

Product Name	Polydimethylsiloxane-Diacrylamide
CAS No.	359867-83-7
Molecular Formula	Contact for details
Molecular Weight	Varies by chain length (PDMS segment)
Synonyms	PDMS-Diacrylamide; α,ω-Bis(acrylamido)polydimethylsiloxane; Acrylamide-Terminated Polydimethylsiloxane; Silicone Diacrylamide; Bis-acrylamido Polydimethylsiloxane; Poly(dimethylsiloxane), bis(acrylamide)-terminated; Reactive Silicone Macromer
EINECS	Contact for details

Quality Control

Our Polydimethylsiloxane-Diacrylamide is manufactured under controlled conditions to ensure batch-to-batch consistency. Quality is verified through a suite of analytical techniques including NMR, GPC, and titration to confirm functionality, molecular weight distribution, and purity. A Certificate of Analysis (COA) detailing specific results is provided with each shipment.

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 incompatible materials. For long-term storage under inert atmosphere (e.g., nitrogen), please contact us.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Acrylamide Functionality)	> 95%
Molecular Weight (Mn, GPC)	As per grade (e.g., 1000, 5000, 10000 g/mol)
Polydispersity Index (PDI)	< 1.5
Viscosity (25°C)	Reported per grade
Water Content (KF)	< 0.5%

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