1,3-Isobenzofurandione, 5,5-(1-Methylethylidene)Bis(4,1-Phenyleneoxy)Bis-, Polymer With 1,3-Benzenediamine And 1,4-Benzenediamine CAS NO 71519-79-4

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CAS No.:71519-79-4

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

1,3-Isobenzofurandione, 5,5-(1-Methylethylidene)Bis(4,1-Phenyleneoxy)Bis-, Polymer With 1,3-Benzenediamine And 1,4-Benzenediamine is a high-performance polyimide precursor or oligomer, known for its exceptional thermal stability and mechanical properties. This advanced material is engineered to provide superior performance in demanding high-temperature and high-stress environments. It is primarily utilized in the aerospace, electronics, and advanced composites industries for applications requiring robust, lightweight, and thermally resistant components.

Application

As a key resin component in the formulation of high-temperature polyimide adhesives and coatings for aerospace components.
In the production of advanced composite materials for structural parts requiring excellent strength-to-weight ratios and thermal endurance.
For manufacturing electronic encapsulants and insulating films in microelectronics and flexible printed circuits (FPC).
As a precursor for high-performance fibers and membranes used in filtration and separation technologies under aggressive conditions.
In the development of specialty thermoset plastics for automotive and industrial applications exposed to extreme heat.
For research and development of next-generation polymers with tailored thermal and dielectric properties.

Basic Information


Product Name	1,3-Isobenzofurandione, 5,5-(1-Methylethylidene)Bis(4,1-Phenyleneoxy)Bis-, Polymer With 1,3-Benzenediamine And 1,4-Benzenediamine
CAS No.	71519-79-4
Molecular Formula	(C31H20O8 · C6H8N2 · C6H8N2)n
Molecular Weight	Polymeric substance (variable)
Synonyms	Poly[(oxy-4,1-phenylene)-5,5-(1-methylethylidene)bis(oxy-4,1-phenylene)pyromellitimide-co-m-phenylenepyromellitimide-co-p-phenylenepyromellitimide]; BTDA/MPD/PPD Polyimide Oligomer; Polyimide Precursor from 3,3',4,4'-Benzophenonetetracarboxylic Dianhydride, m-Phenylenediamine, and p-Phenylenediamine; BTDA-m-PDA-p-PDA Copolymer; Thermoplastic Polyimide Oligomer (BTDA based); Bis(3,4-dicarboxyphenoxy)phenyl Propane Dianhydride - m-/p-Phenylenediamine Polymer; High-Temp Polyimide Resin Intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including inherent viscosity, thermal transition temperatures (Tg), and residual solvent content. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment 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 a controlled room temperature (15-25°C). This material is moisture-sensitive; keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect its processing properties.

Specification

Item	Specification
Appearance	Yellow to amber powder or granules
Identification (IR)	Conforms to structure
Inherent Viscosity	0.30 - 0.60 dL/g (typical)
Glass Transition Temp (Tg)	> 250 °C
Residual Solvent (NMP)	< 1.0 %
Moisture Content (KF)	< 0.5 %