Description

(3-Acryloxy-2-Hydroxypropyl) Terminated Polydimethylsiloxane is a reactive silicone intermediate featuring both acrylate and hydroxyl functional groups on a polydimethylsiloxane (PDMS) backbone. This unique dual-functionality makes it a versatile building block for synthesizing advanced silicone-acrylate hybrid polymers. It is essential for formulators and polymer chemists seeking to create materials with the combined benefits of silicone's flexibility, release properties, and thermal stability with the durability, adhesion, and UV-curability of acrylates. Key industries that utilize this specialty chemical include advanced coatings, pressure-sensitive adhesives, release liners, and high-performance elastomers.

Application

• UV-Curable Release Coatings: Serves as a key monomer for producing silicone-based release liners with excellent controlled release properties for labels and tapes.
• Hybrid Silicone-Acrylate Pressure-Sensitive Adhesives (PSAs): Used to synthesize polymers that offer enhanced tack, peel strength, and high-temperature performance.
• Surface Modification Additives: Imparts slip, mar resistance, and improved surface feel to industrial and protective coatings.
• Crosslinker for Silicone Elastomers: Functions as a reactive site to modify and crosslink silicone rubbers, improving their mechanical and adhesive properties.
• Fiber and Textile Treatment: Employed to create soft, durable water repellents and finishing agents with enhanced compatibility.
• Photopolymer Resins for 3D Printing: Acts as a component in advanced resin formulations to produce flexible, high-resolution parts.

Basic Information

Product Name	(3-Acryloxy-2-Hydroxypropyl) Terminated Polydimethylsiloxane
CAS No.	128754-61-0
Molecular Formula	CnH2n+2O4Sin/2 (n varies with PDMS chain length)
Molecular Weight	Varies by grade (typically 500-10,000 g/mol). Contact for details.
Synonyms	Acryloxy Hydroxypropyl Terminated PDMS; Acrylated Hydroxypropyl Siloxane; Poly(dimethylsiloxane), (3-acryloxy-2-hydroxypropyl) terminated; Silicone Acrylate Hybrid Monomer; Hydroxy-Functional Acrylated Silicone; PDMS Acrylate Diol; Acrylovoxypropyl-modified Siloxane; Reactive Silicone Acrylate Oligomer
EINECS	Contact for details.

Quality Control

Our (3-Acryloxy-2-Hydroxypropyl) Terminated Polydimethylsiloxane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent composition, functionality, and purity. Key parameters monitored include viscosity, hydroxyl value, acrylate content, and residual monomers. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Under recommended storage conditions, the product is stable. To prevent premature polymerization, avoid contamination and exposure to heat, free radicals, or strong light sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Complies
Viscosity (25°C)	Specification available upon request
Hydroxyl Value (mg KOH/g)	Specification available upon request
Acrylate Content	Specification available upon request
Water Content (KF)	< 0.5%
Specific Gravity (25°C)	~0.98 - 1.05
Refractive Index (25°C)	~1.405 - 1.425

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