Description

Dimethyl 1,4-Benzenedicarboxylate Polymer With 1,2-Ethanediol And 2,2'-[9H-Fluoren-9-Ylidenebis(4,1-Phenyleneoxy)]Bis[Ethanol] is a specialized high-performance polymer, specifically a polyarylate or copolyester, engineered for advanced material applications. This compound matters for its unique combination of thermal stability, mechanical strength, and optical properties derived from its fluorene-based monomer unit. It is primarily needed by manufacturers in the electronics, aerospace, and specialty coatings industries seeking materials for high-temperature and demanding environments.

Application

• High-Temperature Engineering Plastics: As a key component in the formulation of polyarylates and copolyesters for automotive under-the-hood components and aerospace parts.
• Optical Materials: Used in the synthesis of polymers for optical films, lenses, and light-guiding components due to the fluorene unit's potential for good light transmission and refractive index control.
• Electronic Encapsulation: Serves as a resin precursor for potting compounds and encapsulants that protect sensitive electronic assemblies from heat and environmental stress.
• Specialty Coatings & Adhesives: Imparts durability and chemical resistance in high-performance protective coatings and structural adhesives.
• Gas Separation Membranes: Potential use in the manufacture of advanced polymer membranes for industrial gas separation processes, leveraging its rigid polymer backbone.
• Additive Manufacturing Feedstock: For high-value 3D printing applications requiring materials with exceptional thermal and mechanical properties.

Basic Information

Product Name	Dimethyl 1,4-Benzenedicarboxylate Polymer With 1,2-Ethanediol And 2,2'-[9H-Fluoren-9-Ylidenebis(4,1-Phenyleneoxy)]Bis[Ethanol]
CAS No.	156326-33-9
Molecular Formula	(C10H10O4 • C2H6O2 • C29H24O4)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(ethylene terephthalate-co-9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene terephthalate); 9,9-Bis[4-(2-hydroxyethoxy)phenyl]fluorene-Ethylene Terephthalate Copolymer; PET-Fluorene Copolymer; Fluorene-based Polyarylate; Poly(ethylene terephthalate) modified with 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene; BHPF-modified PET; Optical Polyester Copolymer
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to rigorous quality testing protocols to ensure batch-to-batch consistency and performance. Key parameters such as intrinsic viscosity, thermal transition temperatures (Tg), and monomer conversion are closely monitored. Certificates of Analysis (COA) detailing specific lot specifications are available upon request to support your quality assurance and regulatory 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). Due to its hygroscopic nature, the container must be kept tightly sealed when not in use to prevent moisture absorption, which can affect processing and final polymer properties.

Specification

Item	Specification
Appearance	Off-white to pale yellow pellets or powder
Identification (IR)	Conforms to structure
Intrinsic Viscosity (IV)	0.50 - 0.80 dL/g (or as specified)
Glass Transition Temperature (Tg)	> 120 °C
Moisture Content	< 0.5 % (Karl Fischer)
Residual Monomers	< 0.1 % (HPLC)
Ash Content	< 0.1 %

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