Description

2H-Azepin-2-One, Hexahydro-, Polymer With Oxirane is a specialized polymer derived from caprolactam and ethylene oxide, known for its unique polyamide-polyether block structure. This copolymer is valued for its ability to modify the physical and chemical properties of base materials, offering enhanced flexibility, compatibility, and processability. It serves as a critical performance additive in industries such as polymer manufacturing, coatings, and adhesives, where precise material engineering is required.

Application

• Polymer Modification: Acts as a compatibilizer and impact modifier in polyamide (nylon) blends and alloys.
• Coating Formulations: Used to improve flexibility, adhesion, and chemical resistance in industrial and protective coatings.
• Adhesive & Sealant Systems: Enhances tack, peel strength, and low-temperature performance in hot-melt and reactive adhesives.
• Elastomer Production: Serves as a soft segment or chain extender in the synthesis of thermoplastic polyurethane (TPU) and other elastomers.
• Fiber & Textile Processing: Applied as a spin finish additive or softening agent to improve fiber processing and hand feel.
• Resin Plasticization: Functions as an internal plasticizer for engineering plastics to reduce brittleness.

Basic Information

Product Name	2H-Azepin-2-One, Hexahydro-, Polymer With Oxirane
CAS No.	26569-63-1
Molecular Formula	(C6H11NO · C2H4O)n
Molecular Weight	Varies (Polymer)
Synonyms	Caprolactam-Ethylene Oxide Copolymer; Poly(oxyethylene)-block-polycaprolactam; Poly(ethylene oxide)-co-polycaprolactam; EO-Caprolactam Block Copolymer; Ethylene Oxide/Caprolactam Polymer; Polyether-block-polyamide; PEO-PCL Copolymer; Nylon 6-Polyethylene Glycol Copolymer
EINECS	Contact for details

Quality Control

Our production of 2H-Azepin-2-One, Hexahydro-, Polymer With Oxirane adheres to stringent quality management protocols. Each batch is characterized for critical parameters including monomer ratio, molecular weight distribution, and thermal properties to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) detailing these specifications are 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). This material is hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white pellets or flakes
Identification (IR)	Conforms to structure
Assay (Caprolactam Content)	40 - 60 % (w/w)
Moisture Content	≤ 1.0 %
Melting Point (DSC)	40 - 60 °C
Viscosity (Melt, 100°C)	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Amine Value	≤ 5.0 mg KOH/g

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