Dioctyl Adipate

Catalog Number
Heterocyclic Organic Compound
Molecular Weight
Molecular Formula

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Dioctyl adipate (DOA) is an organic compound with a low viscosity and one of the most commonly used plasticizers for polymerization.
Canonical SMILES
InChI Key
Boiling Point
398.2±10.0 °C at 760 mmHg
Melting Point
Flash Point
178.6±17.4 °C
0.9±0.1 g/mL
Insoluble or very slightly soluble in glycerol and ethylene glycol.
In water, 0.78 mg/L at 22 °C, 0.78 mg/L at 22 °C, insoluble in water at 25 °C.
Colorless oily liquid
DOA is a widely used plasticizer, primarily employed to improve the flexibility, durability, and workability of various materials, particularly polymers and plastics. As a plasticizer, DOA is mixed with the polymer matrix to increase its flexibility and reduce brittleness.
Store at 2-8 ℃
EC Number
Exact Mass
Features And Benefits
DOA has low volatility, good heat stability, and resistance to extraction, which makes it suitable for applications where the plasticized material needs to withstand high temperatures and prolonged use. It is also compatible with other common plasticizers, allowing it to be used in combination with them to achieve specific performance requirements.
Refractive Index
Vapor Pressure
0.0±0.9 mmHg at 25°C
WGK Germany

Dioctyl adipate as a plasticizer to improve the low-temperature properties of asphalt

Zhen Fu, et al. International Journal of pavement engineering, 2022, 23(8): 2644-2653.

Dioctyl adipate (DOA) is a kind of modifier commonly used in the plastic industry. DOA can impart the modified products with a good low-temperature flexibility, light resistance and a certain water resistance.
· The plasticizer DOA was added to the base asphalt to achieve contents of 1.5%, 2.0%, 2.5% and 3.0% by weight of the asphalt binder.
· Comprehensive analysis of the high and low temperature performance of DOA modified asphalt shows that the optimum content is 3.0%.
· Fourier-Transform Infrared Spectroscopy (FT-IR) indicates that the plasticizer and asphalt binder mainly undergo a physical blending reaction.

Rheological Properties of Dioctyl Adipate-modified Asphalt Binder

Fu, Zhen, et al. 23.8 (2022): 2644-2653.

Referring to the successful application of cold-resistant plasticizers in the plastics industry, dioctyl adipate (DOA) plasticizer was selected to improve the low-temperature performance of asphalt. Dynamic shear rheometer (DSR) and bending beam rheometer (BBR) were used to test and analyze the high and low temperature properties of plasticizer modified asphalt binder, and the residual creep rate ratio was proposed to evaluate the anti-aging performance of asphalt binder. Rheological property analysis shows that DOA can improve the aging resistance of asphalt binder. The low-temperature performance of DOA-modified asphalt binder is improved by 30%. At the same temperature and softening point increment, the residual creep rate of plasticizer-modified asphalt binder is more than 15% higher than that of base asphalt. 22.5% lower than base asphalt, meaning improved anti-aging properties.
The plasticizer dioctyl adipate was added to the base asphalt to achieve levels of 1.5%, 2.0%, 2.5% and 3.0% by weight of the asphalt binder. Lower contents are accompanied by insignificant modification effects. When the dosage exceeds 3.0%, the high-temperature performance of the modified asphalt binder will be significantly reduced. Modified asphalt binder was prepared in a high shear mixer at approximately 130°C and 1000 r/min. Then, the following tests were conducted to study the performance of plasticizer-modified asphalt binder and control samples. A systematic study was carried out on the ductility and softening point of different types of bitumen.

July 19, 2023

Low temperature flexible additive
Adding dioctyl adipate to PVC can obtain excellent low-temperature flexibility.

How soluble is dioctyl adipate?

Dioctyl adipate is insoluble in water, soluble in ethanol, ether, acetone, acetic acid and other organic solvents.

What are the relevant applications of dioctyl adipate?

Dioctyl adipate can be used as an excellent cold-resistant plasticizer for PVC, which can give the products excellent low-temperature flexibility.

What is the boiling point of dioctyl adipate?


What is the flash point of dioctyl adipate?


What is the isotropic specific volume of dioctyl adipate?


What is the melting point of dioctyl adipate?


What is the molar refractive index of dioctyl adipate?


What is the molecular formula for dioctyl adipate?


What is the refractive index of dioctyl adipate?


What is the surface tension of dioctyl adipate?


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