Description

Poly(Bis(Phenoxy)Phosphazene) is a high-performance inorganic-organic hybrid polymer characterized by a backbone of alternating phosphorus and nitrogen atoms with phenoxy side groups. This unique structure provides exceptional thermal stability, flame retardancy, and chemical resistance, making it a valuable advanced material. It is primarily sought after by manufacturers in the aerospace, electronics, and specialty polymer industries for demanding applications where traditional organic polymers fall short.

Application

• As a flame-retardant additive and smoke suppressant in high-temperature engineering plastics, elastomers, and composites.
• Component in advanced electrolyte systems for lithium-ion and other next-generation batteries to enhance safety and performance.
• Base polymer for creating high-temperature resistant coatings, seals, and gaskets in aerospace and automotive applications.
• Used in the formulation of fire-resistant hydraulic fluids, lubricants, and greases for extreme environments.
• As a precursor or modifying agent for synthesizing other phosphazene derivatives with tailored properties.
• Potential use in biomedical materials and membranes due to its biocompatibility and stability.
• Additive for improving the thermal and dimensional stability of electronic encapsulants and printed circuit board substrates.

Basic Information

Product Name	Poly(Bis(Phenoxy)Phosphazene)
CAS No.	28212-48-8
Molecular Formula	(NP(OC₆H₅)₂)ₙ
Molecular Weight	Variable (Polymer)
Synonyms	Poly(diphenoxyphosphazene)
Phosphonitrilic chloride, polymer with phenol
Polyphosphazene, phenoxy-substituted
Bis(phenoxy)phosphazene polymer
PNP Polymer (phenoxy)
Poly[bis(phenoxy)phosphazene]
Inorganic polymer NP backbone with phenoxy groups
EINECS	Contact for details

Quality Control

Our Poly(Bis(Phenoxy)Phosphazene) is manufactured under controlled conditions to ensure batch-to-batch consistency. Quality is verified through a suite of analytical techniques including Gel Permeation Chromatography (GPC) for molecular weight distribution, spectroscopic methods for structural confirmation, and thermal analysis. A comprehensive Certificate of Analysis (COA) detailing purity, residual solvent levels, and key physical properties is provided with each 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 strong oxidizing agents and excessive heat. For long-term storage, consider an inert atmosphere to maintain optimal polymer properties.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to structure
Inherent Viscosity	Contact for details
Weight-Average Molecular Weight (Mw)	Tailored per grade
Glass Transition Temperature (Tg)	> -20°C
Residual Solvent	< 0.5% (by GC)
Ash Content	< 1.0%

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