Online Inquiry

Name:

Phone:

* Email:

Quote Number:

* Quantity:

* Service & Products of Interest:

Project Description:

*Verification Code:

Polyethylene terephthalate

Catalog Number

ACM25038599-2

CAS

25038-59-9

Structure

IUPAC Name

poly(ethylene terephthalate)

Synonyms

poly(oxyethyleneoxyterephthaloyl), Terylene (trademark), Dacron (trademark).

Molecular Weight

228.2g/mol

Molecular Formula

C10H12O6

Canonical SMILES

C1=CC(=CC=C1C(=O)O)C(=O)O.C(CO)O

InChI

InChI=1S/C8H6O4.C2H6O2/c9-7(10)5-1-2-6(4-3-5)8(11)12;3-1-2-4/h1-4H,(H,9,10)(H,11,12);3-4H,1-2H2

InChI Key

FYIBGDKNYYMMAG-UHFFFAOYSA-N

Boiling Point

> 350 °C (662 °F; 623 K) (decomposes)

Melting Point

> 250 °C (482 °F; 523 K)[2] 260 °C

Density

1.38 g/cm³, 20 °C 1.370 g/cm³, amorphous 1.455 g/cm³, single crystal

Solubility

Practically insoluble in water

Application

Polyester fibers are widely used in the textile industry. Plastic bottles made from PET are widely used for soft drinks, both still and sparkling. BOPET is used in the back sheet of photovoltaic modules. PET is also used as a substrate in thin-film solar cells. PET can be compounded with glass fiber and crystallization accelerators, to make thermoplastic resins.

Active Content

95%

Physical State

Solid

Typical Applications

Use as film-forming agent.
Use as non-metallic material.
Use as adhesive.

MSDS

Download MSDS

COA

Download COA

Spec Sheet

Download Spec Sheet

Case Study

Polyethylene Terephthalate Is Used for the Synthesis of Phosphorus/Nitrogen Co-Doped Porous Carbon Nanobulks

Polyethylene Terephthalate Is Used for the Synthesis of Phosphorus/Nitrogen Co-Doped Porous Carbon Nanobulks Pang, Kun, et al. Journal of Environmental Chemical Engineering (2025): 117705.

Polyethylene terephthalate (PET), a common plastic waste, was successfully upcycled into high-value phosphorus and nitrogen co-doped porous carbon nanobulks (PN/PCNs) via a facile one-pot pyrolysis method. In this process, 1 g of PET and 1 g of ammonium polyphosphate (APP) were thoroughly ground for 3 minutes to obtain a homogeneous precursor mixture. The powder was then calcined in a tube furnace at 500, 550, or 600 °C for 1 hour under a heating rate of 5 °C·min⁻¹. The resulting carbonaceous products were washed three times with deionized water to remove soluble impurities and dried at 60 °C overnight. Final yields were approximately 150 mg per synthesis, denoted as PN/PCN-x based on calcination temperature.
The catalytic degradation performance was evaluated using sulfadiazine (SDZ) as a model pollutant. A 50 mL aqueous SDZ solution (20 mg·L⁻¹) was treated with 15 mg of peroxymonosulfate (PMS) and 6 mg of PN/PCN catalyst under continuous stirring at 30 °C. UV-vis spectrophotometry was used to monitor degradation at timed intervals. Among the samples, PN/PCN-550 exhibited superior activity with a 91.95% degradation efficiency and 71.1% mineralization rate. Mechanistic analysis revealed O₂·⁻, ¹O₂, and ·OH as primary reactive species.
This study highlights the effective use of PET in synthesizing advanced carbon-based catalysts for environmental remediation.

Polyethylene Terephthalate Used for the Preparation of High-Barrier and Mechanically Enhanced Polyester Blends

Polyethylene Terephthalate Used for the Preparation of High-Barrier and Mechanically Enhanced Polyester Blends Tiwari, Rishabh, Mohamed A. Abdelwahab, and Muhammad Rabnawaz. Polymer (2025): 128761.

This study explores the preparation of advanced polyethylene terephthalate (PET)-based blends by melt blending PET with liquid crystal polymer (LCP) and polyglycolic acid (PGA), aimed at enhancing barrier, thermal, and mechanical properties. Blends were prepared using a DSM Xplore twin-screw micro-compounder under nitrogen atmosphere at 250 °C, with a screw speed of 100 rpm and a mixing time of 120 s. Prior to blending, PET, LCP/PGA, and Joncryl ADR (compatibilizer) were dried at 80 °C for 24 hours.
Each blend was extruded into continuous strands, cut into pellets, and subsequently processed into films via compression molding at 270 °C under 10 tonnes of pressure. Films were rapidly quenched using dry ice in a thermally insulated setup to prevent crystallization defects.
Scanning electron microscopy confirmed improved interfacial adhesion in PET/LCP and PET/PGA blends with Joncryl addition. Notably, the PET/20% PGA blend exhibited significant improvements in oxygen (62%) and water vapor (41%) barrier properties compared to neat PET. Mechanical testing showed a 42% increase in tensile strength and 22.4% in modulus, highlighting PGA's reinforcement potential.
This study demonstrates that PET, when compatibilized and blended with LCP or PGA, forms recyclable polyester-based materials with enhanced performance, suitable for high-barrier packaging or engineering applications.

Polyethylene Terephthalate Is Used for the Preparation of Bilayer Films for Active Packaging of Lycium barbarum

Polyethylene Terephthalate Is Used for the Preparation of Bilayer Films for Active Packaging of Lycium barbarum Liu, Mengyun, et al. RSC advances 15.14 (2025): 11023-11033.

Polyethylene terephthalate (PET) is used as the outer structural layer in a bilayer film system developed for the active packaging and preservation of Lycium barbarum (goji berries). In this study, PET provides mechanical strength and barrier protection, complementing an inner chitosan/polyvinyl alcohol (CS/PVA) film infused with white round grapefruit essential oil (WRGEO). The bilayer was fabricated via solution casting, integrating antimicrobial and moisture-retention functionalities for food preservation applications.
The PET layer served as a robust support for the bioactive CS/PVA inner film, which contained 1% v/v WRGEO as the key functional additive. Gas chromatography-mass spectrometry identified d-limonene and other monoterpenes in WRGEO with potent antimicrobial activity against E. coli, S. aureus, and A. niger. While the essential oil enhanced flexibility and thermal stability of the CS/PVA layer, PET maintained the composite film's dimensional integrity and provided effective moisture and oxygen barrier properties.
When applied to packaging Lycium barbarum, the PET-based bilayer film significantly reduced water loss, decay rate, and malondialdehyde accumulation while preserving color and extending shelf life compared to unpackaged controls. The integration of PET into this dual-functional film system highlights its utility in developing next-generation bioactive packaging solutions, merging mechanical durability with natural antimicrobial strategies for postharvest preservation.

❈ Please kindly note that our products are for research use only.