Description

Formaldehyde, Polymer With 4,4-Sulfonylbisphenol is a specialized polymeric resin formed from the condensation of formaldehyde and 4,4'-sulfonyldiphenol (bisphenol S). This compound matters as a high-performance material, offering a unique combination of thermal stability, chemical resistance, and mechanical properties derived from its sulfone and phenolic structures. It is primarily needed by manufacturers in the advanced polymer and specialty chemical industries for creating high-temperature engineering plastics, adhesives, and coatings.

Application

• High-Temperature Engineering Plastics: As a key monomer or prepolymer for synthesizing poly(arylene ether sulfone)s (PAES) and other high-performance thermoplastics.
• Thermoset Resins: Used in the formulation of heat-resistant and chemically stable phenolic resins for composite materials.
• Adhesives & Sealants: Serves as a building block for high-strength, durable adhesives used in aerospace and automotive applications.
• Protective Coatings: Imparts excellent thermal and chemical resistance to industrial and protective coatings.
• Membrane Materials: Potential use in the development of filtration and separation membranes due to its robust polymer backbone.
• Flame Retardant Additives: Can be incorporated into polymer formulations to enhance flame retardancy.

Basic Information

Product Name	Formaldehyde, Polymer With 4,4-Sulfonylbisphenol
CAS No.	27775-64-0
Molecular Formula	(C13H10O4S·CH2O)n
Molecular Weight	Contact for details
Synonyms	Poly(oxy-1,4-phenylenesulfonyl-1,4-phenyleneoxy-1,4-phenylenemethylene-1,4-phenylene); Formaldehyde polymer with 4,4'-sulfonyldiphenol; Bisphenol S-formaldehyde resin; 4,4'-Sulfonyldiphenol-formaldehyde polymer; Phenolic resin from bisphenol S; PAES prepolymer; Poly(ether sulfone) precursor
EINECS	Contact for details

Quality Control

Our production of Formaldehyde, Polymer With 4,4-Sulfonylbisphenol adheres to strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency in molecular weight distribution, functional group content, and thermal properties. Certificates of Analysis (COA) detailing purity, residual monomer content, and key performance indicators are available upon request to support your quality assurance and R&D processes.

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 may be hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent moisture absorption and potential property changes.

Specification

Item	Specification
Appearance	Off-white to light tan powder or granules
Identification (IR)	Conforms to structure
Assay (Phenolic OH Content)	Contact for details
Weight Average Molecular Weight (Mw)	Contact for details
Glass Transition Temperature (Tg)	> 180°C
Moisture Content	< 1.0%
Residual Formaldehyde	< 0.1%

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