Description

Poly[Oxy(Phenylphosphinylidene)Oxy-1,4-Phenylenesulfonyl-1,4-Phenylene] is a high-performance, flame-retardant polymer belonging to the class of poly(arylene phosphine oxide)s. This advanced engineering material is valued for its exceptional thermal stability, mechanical strength, and inherent flame resistance, making it a critical component in demanding applications. It is primarily utilized in industries where superior fire safety and high-temperature performance are non-negotiable requirements.

Application

• High-Temperature Engineering Plastics: As a key monomer or additive for producing thermally stable, flame-retardant polymers used in aerospace and automotive components.
• Electronic Encapsulation & Circuit Boards: For manufacturing advanced epoxy molding compounds (EMCs) and printed circuit board (PCB) substrates that require high glass transition temperatures and excellent flame retardancy (e.g., meeting UL94 V-0).
• Fire-Resistant Coatings & Adhesives: As a reactive modifier in coatings and adhesives for construction, transportation, and electrical insulation to enhance fire resistance.
• Specialty Fibers & Films: In the synthesis of high-performance fibers and films for protective clothing, filtration media, and composite materials.
• Additive for Flame-Retardant Masterbatches: Incorporated into polymer blends (e.g., polycarbonate, polyester, polyamide) to impart flame-retardant properties without significantly compromising mechanical integrity.

Basic Information

Product Name	Poly[Oxy(Phenylphosphinylidene)Oxy-1,4-Phenylenesulfonyl-1,4-Phenylene]
CAS No.	35398-70-0
Molecular Formula	Contact for details
Molecular Weight	Polymeric (Contact for details)
Synonyms	Poly(phenylene phenylphosphonate sulfone); Poly(oxy(phenylphosphinylidene)oxy-1,4-phenylenesulfonyl-1,4-phenylene); Poly(arylene phosphine oxide sulfone); Flame retardant polymer 35398-70-0; PPO-SO2 polymer; Poly(phenylphosphonate sulfone); Bisphenol S-based polyphosphonate
EINECS	Contact for details

Quality Control

Our production of Poly[Oxy(Phenylphosphinylidene)Oxy-1,4-Phenylenesulfonyl-1,4-Phenylene] adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency in key parameters such as molecular weight distribution, thermal stability, and phosphorous content. Certificates of Analysis (COA) documenting purity and performance specifications are available upon request to support your quality assurance and regulatory compliance needs.

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 incompatible materials. 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
Phosphorous Content	Contact for details
Thermal Decomposition Temperature (Td)	> 400 °C
Glass Transition Temperature (Tg)	Contact for details
Moisture Content	< 0.5 %
Particle Size	Customizable

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