Description

1,4-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,4-butanediol and .alpha.-[2-(5-carboxy-1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)methylethyl]-.omega.-[2-(5-carboxy-1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl) methylethoxy]poly[oxy(methyl-1,2-ethanedi is a specialized high-performance polymer, specifically a modified poly(butylene terephthalate) (PBT) copolymer incorporating phthalimide-based functional groups. This engineered material is valued for its enhanced thermal stability, mechanical properties, and potential for specific chemical interactions, making it superior to standard polyesters for demanding applications. It is primarily sought by manufacturers in the advanced plastics, specialty coatings, and high-temperature composite industries where tailored polymer performance is critical.

Application

• High-Temperature Engineering Plastics: Used as a base resin or modifier in compounds requiring superior heat resistance and dimensional stability for automotive under-hood components and electrical connectors.
• Specialty Adhesives and Sealants: Serves as a key polymer backbone in formulations designed for bonding dissimilar materials or for applications requiring long-term durability under harsh environmental conditions.
• Advanced Composite Matrices: Employed in the production of fiber-reinforced composites for aerospace and industrial applications, where the functional groups can improve fiber-matrix adhesion.
• Functional Coatings: Utilized in coating systems that demand excellent chemical resistance, weatherability, and specific surface properties for industrial equipment and protective layers.
• Polymer Modification: Acts as a compatibilizer or property enhancer in polymer blends and alloys to improve thermal, mechanical, or processing characteristics.
• Specialty Films and Membranes: Processed into films for technical applications requiring a precise balance of barrier properties, strength, and thermal performance.

Basic Information

Item	Details
Product Name	1,4-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,4-butanediol and .alpha.-[2-(5-carboxy-1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)methylethyl]-.omega.-[2-(5-carboxy-1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl) methylethoxy]poly[oxy(methyl-1,2-ethanedi
CAS No.	95910-39-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(butylene terephthalate) copolymer with phthalimide; Modified PBT copolymer; Phthalimide-functionalized PBT; Terephthalic acid, dimethyl ester, polymer with 1,4-butanediol and phthalimide derivative; Butanediol/terephthalic acid copolymer, phthalimide-modified; Isoindole-1,3-dione modified poly(butylene terephthalate); PBT-PI copolymer; CAS 95910-39-7
EINECS	Contact for details

Quality Control

Our production of this specialty copolymer adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized using advanced analytical techniques including GPC (Gel Permeation Chromatography) for molecular weight distribution, DSC (Differential Scanning Calorimetry) for thermal properties, and FTIR (Fourier-Transform Infrared Spectroscopy) for structural verification. Comprehensive Certificates of Analysis (COA) detailing key specifications are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). The material is hygroscopic (moisture-sensitive); keep the original container tightly sealed to prevent moisture absorption, which can affect processing and final properties. Isolate from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white pellets or powder
Identification (IR)	Conforms to structure
Inherent Viscosity	Contact for details
Glass Transition Temperature (Tg)	Contact for details
Melting Point (Tm)	Contact for details
Moisture Content	< 0.5% (Karl Fischer)
Ash Content	< 0.1%

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