Description

Poly(Propylene Glycol) Diacrylate is a difunctional acrylate monomer characterized by its flexible polyether backbone. This chemical is a crucial building block in the formulation of advanced polymers, offering excellent crosslinking efficiency and tunable properties. It is primarily sought after by manufacturers in the UV-curable coatings, adhesives, inks, and specialty resin sectors for its ability to enhance flexibility, adhesion, and cure speed in the final product.

Application

• UV-Curable Coatings & Inks: A key reactive diluent and crosslinker for flexible, scratch-resistant finishes on plastics, wood, and metal.
• Adhesives & Sealants: Used to formulate pressure-sensitive adhesives (PSAs) and structural adhesives with improved toughness and low shrinkage.
• Photopolymer Resins: Serves as a primary oligomer in stereolithography (SLA) and other 3D printing resins, providing desired mechanical properties.
• Fiber Optic Coatings: Imparts essential flexibility and protection to the secondary coating layer on optical fibers.
• Dental Composites: Employed in light-curable restorative materials to achieve optimal polymer network formation and durability.
• Electronics Encapsulation: Used in potting compounds and conformal coatings to protect sensitive components.

Basic Information

Product Name	Poly(Propylene Glycol) Diacrylate
CAS No.	52496-08-9
Molecular Formula	CnH2n-2O4 (n varies with propylene glycol unit count)
Molecular Weight	Varies by grade (typically 300-900 g/mol). Contact for details.
Synonyms	PPG Diacrylate; Acrylated Polypropylene Glycol; Polypropylene Glycol Diacrylate; 2-Propenoic Acid, Oxydi-2,1-ethanediyl Ester; Acrylic Acid, Diester with Polypropylene Glycol; Difunctional Acrylate Monomer; Photomer® 4061 (Example Trade Name); SR 306 (Example Trade Name)
EINECS	258-035-5

Quality Control

Our Poly(Propylene Glycol) Diacrylate is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and physical property verification, to ensure consistent performance and reliability for your formulations. A Certificate of Analysis (COA) detailing specific results for purity, color, acid value, and viscosity is provided with every 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, sparks, and open flame. To prevent premature polymerization, store under an inert atmosphere if specified and avoid contamination with peroxides or other free radical initiators.

Specification

Item	Specification
Appearance	Clear, Colorless to Pale Yellow Liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Color (APHA)	≤ 100
Acid Value	≤ 1.0 mg KOH/g
Water Content (KF)	≤ 0.2%
Viscosity @ 25°C	Varies by grade. Contact for details.
Inhibitor (MEHQ)	100 - 500 ppm

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