Description

Cyanic Acid (1-Methylethylidene)Di-4,1-Phenylene Ester Homopolymer is a high-performance polymer derived from bisphenol A and cyanic acid, known for its exceptional thermal stability and chemical resistance. This material is critical for applications demanding durable, high-temperature performance and reliable electrical insulation properties. It is primarily utilized by manufacturers in the advanced electronics, aerospace composites, and specialty coatings industries seeking to enhance product longevity under extreme conditions.

Application

• As a high-temperature matrix resin for advanced carbon fiber and glass fiber composites in aerospace and automotive components.
• In the formulation of encapsulants and underfill materials for microelectronics and semiconductor packaging, providing critical protection.
• As a key component in high-performance adhesives and structural bonding agents for demanding industrial assemblies.
• For manufacturing printed circuit board (PCB) laminates with superior thermal and dielectric properties.
• In the production of protective and insulating coatings for wires, motors, and electrical equipment.
• As a precursor or modifier in the synthesis of other high-value, heat-resistant polymers and cyanate ester blends.

Basic Information

Product Name	Cyanic Acid (1-Methylethylidene)Di-4,1-Phenylene Ester Homopolymer
CAS No.	25722-66-1
Molecular Formula	(C17H14N2O2)n
Molecular Weight	~ (278.31)n g/mol (Polymer)
Synonyms	Polycyanurate; Bisphenol A Dicyanate Homopolymer; Cyanate Ester Resin; Poly(bisphenol A dicyanate); BCE; BadCy; AroCy B; 1,1'-(1-Methylethylidene)bis(4-cyanato-benzene) Homopolymer; Bis(4-cyanatophenyl)propane Polymer
EINECS	Contact for details

Quality Control

Every batch of our Cyanic Acid (1-Methylethylidene)Di-4,1-Phenylene Ester Homopolymer is produced under a stringent quality management system. We ensure compliance with relevant industry standards through rigorous in-process and final product testing, including analysis of key parameters such as cyanate equivalent weight, residual phenol content, and thermal characteristics. A comprehensive Certificate of Analysis (COA) detailing purity, viscosity, and other critical specifications is provided with each shipment to guarantee batch-to-batch consistency and performance.

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 is moisture-sensitive; keep the original container tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance. Store away from strong acids, bases, and sources of heat or ignition.

Specification

Item	Specification
Appearance	White to pale yellow powder or granules
Identification (IR)	Conforms to structure
Cyanate Equivalent Weight	Contact for details
Residual Phenol Content	≤ 0.5%
Melting Point / Softening Point	Contact for details
Viscosity (at specified temp)	Contact for details
Moisture Content	≤ 0.2%

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