Poly(4-hydroxy benzoic acid-co-ethylene terephthalate)
Poly(4-hydroxy benzoic acid-co-ethylene terephthalate), CAS 125300-07-4, presents a complex copolyester structure with varying monomer ratios. This material, with a linear formula (OC<sub>6</sub>H<sub>4</sub>CO)<sub>x</sub>(OCH<sub>2</sub>CH<sub>2</sub>O<sub>2</sub>CC<sub>6</sub>H<sub>4</sub>-4-CO)<sub>y</sub>, is specifically noted for its 80 mol % concentration in 4-hydroxybenzoic acid. Its unique properties make it valuable in advanced material science applications, particularly in the development of liquid crystalline polymers and organic electronics.

Liquid Crystal Polymers
This copolyester is integral to the research and development of advanced liquid crystal polymers (LCPs). Its structure allows for the creation of materials with specific mesophase behaviour and tailored anisotropic properties essential for high-performance applications.
Materials Science Research
As a component in materials science, it serves as a building block for novel polymers and composites. Researchers utilise its characteristics to explore new material functionalities and performance enhancements in various scientific investigations.
Organic and Printed Electronics
The polymer finds application in the burgeoning field of organic and printed electronics. Its potential lies in contributing to the development of flexible displays, sensors, and other electronic devices where specific polymeric characteristics are required.
| Linear formula | (OC6H4CO)x(OCH2CH2O2CC6H4-4-CO)y |
|---|---|
| Concentration | 80 mol % in 4-hydroxybenzoic acid |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Poly(4-hydroxy benzoic acid-co-ethylene terephthalate) used for?
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Poly(4-hydroxy benzoic acid-co-ethylene terephthalate) is used in advanced material science, particularly in the development of liquid crystal polymers and organic electronics.
What is the CAS number and linear formula for this product?
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The CAS number is 125300-07-4, and the linear formula is (OC<sub>6</sub>H<sub>4</sub>CO)<sub>x</sub>(OCH<sub>2</sub>CH<sub>2</sub>O<sub>2</sub>CC<sub>6</sub>H<sub>4</sub>-4-CO)<sub>y</sub>.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product at a concentration of 80 mol % in 4-hydroxybenzoic acid. TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades.
What personal protective equipment is recommended when handling this chemical?
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When handling this chemical, it is recommended to use eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if respiratory protection is needed.
Is this chemical classified under German water hazard classes?
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Yes, this chemical is classified under WGK 3 in Germany, indicating a high hazard to water.
How can I request a sample or quote for this chemical?
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To request a sample or quote, please contact our sales team through the website or by phone. Please reference the product name and CAS number when making your enquiry.
How is this product typically packed and shipped?
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This product is packed according to industry standards for safe transport and is exported globally by Tech Serve Solutions.
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