Description

Bis[(3-Ethyl-3-Oxetanyl)Methyl](Phenyl)Phosphine is a specialized organophosphorus compound featuring reactive oxetane rings, making it a valuable monomer and cross-linking agent in advanced polymer synthesis. Its primary commercial value lies in its ability to impart enhanced thermal stability, chemical resistance, and mechanical properties to cured polymer networks. This product is essential for manufacturers in the photoresist, epoxy resin modification, and high-performance coating industries seeking to develop next-generation materials.

Application

• Photoresist and Photoinitiator Formulations: Acts as a key reactive diluent and cross-linker in UV-curable systems for electronics and micro-lithography.
• Epoxy Resin Modification: Used to copolymerize with epoxies to improve flexibility, adhesion, and thermal properties of composite materials.
• Cationic UV-Curing Coatings and Inks: Serves as a multifunctional monomer that enables rapid curing and enhances film performance.
• Adhesive and Sealant Production: Incorporated to increase cross-link density, improving chemical and moisture resistance in high-performance bonds.
• Flame Retardant Additive Synergy: Can be used in combination with other phosphorus-based compounds to enhance flame retardancy in polymers.
• Synthesis of Specialty Polymers: A crucial building block for creating novel polyethers and other polymers with tailored properties for R&D.

Basic Information

Product Name	Bis[(3-Ethyl-3-Oxetanyl)Methyl](Phenyl)Phosphine
CAS No.	42567-04-4
Molecular Formula	C19H27O2P
Molecular Weight	318.39 g/mol
Synonyms	Phenylbis[(3-ethyloxetan-3-yl)methyl]phosphine; (Phenyl)bis[(3-ethyloxetan-3-yl)methyl]phosphine; Bis(3-ethyl-3-oxetanylmethyl)phenylphosphine; 3,3'-[Phenylphosphinylidene]bis[methylene]bis(3-ethyloxetane); Oxetane Phosphine Monomer; ARON OXETANE OXT-221 (Trade Name)
EINECS	Contact for details

Quality Control

Our production of Bis[(3-Ethyl-3-Oxetanyl)Methyl](Phenyl)Phosphine adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C to maximize shelf-life stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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