Description

2-Methylene-1,3-Dioxepane is a versatile seven-membered cyclic ketene acetal monomer. This compound is valued for its unique reactivity, enabling the synthesis of polymers with tailored properties through ring-opening and radical polymerization techniques. It is a critical building block for researchers and manufacturers in the polymer and specialty chemical industries seeking to develop advanced materials with specific functional characteristics.

Application

• Functional Polymer Synthesis: Serves as a key monomer for the preparation of polymers with hydrolyzable ester linkages in the backbone via ring-opening polymerization.
• Biomedical Materials: Used in the development of biodegradable and biocompatible polymers for drug delivery systems and temporary medical implants.
• Surface Modification: Employed to create functional coatings with specific surface energies or reactive sites for further chemical grafting.
• Adhesive & Sealant Formulations: Incorporated to modify the toughness, flexibility, and degradation profile of advanced adhesive products.
• Crosslinking Agent: Acts as a reactive crosslinker in polymer networks to enhance thermal stability and mechanical strength.
• Academic & Industrial R&D: A valuable reagent for exploring new polymerization mechanisms and novel macromolecular architectures.

Basic Information

Product Name	2-Methylene-1,3-Dioxepane
CAS No.	69814-56-8
Molecular Formula	C6H10O2
Molecular Weight	114.14 g/mol
Synonyms	2-Methylene-1,3-dioxepane; 2-Methylenedioxepane; 1,3-Dioxep-2-ene, 2-methyl-; 2-Methylene-1,3-dioxacycloheptane; Cyclic ketene acetal (CKA) monomer; 7-Membered cyclic ketene acetal
EINECS	Contact for details

Quality Control

Our 2-Methylene-1,3-Dioxepane is produced under stringent quality management protocols. Each batch is analyzed to ensure high purity and consistency, with specifications typically meeting the requirements of research and industrial polymerization processes. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your project specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area, away from heat sources and incompatible materials. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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