Yang, Haibo, et al. Materials Letters 382 (2025): 137926.
Dioctyl maleate (DOM) is a reactive plasticizer widely recognized for its high thermal stability, cold resistance, and ability to enhance the tensile properties of polymers. In recent research, DOM has been utilized in composite modified asphalt binders to improve flexibility and resistance to cracking.
A novel asphalt binder incorporating rock asphalt (RA) and DOM was developed to balance stability and toughness. The RA component, characterized by a porous surface and fine particle size (<0.25 mm), enhanced binder stability by increasing the complex shear modulus (G*) and improving rutting resistance. However, while RA alone provided superior structural integrity, it lacked sufficient toughness. The incorporation of DOM significantly improved the binder's flexibility, reducing the phase angle (δ) and enhancing crack resistance.
The preparation of the composite binder involved heating neat asphalt (PG64-22) and introducing 15% RA, followed by the addition of DOM at 150°C with continuous stirring. Although DOM improved flexibility, excessive amounts led to a decline in fatigue life. To optimize performance, a 2% DOM dosage was identified as the most effective balance between stability and toughness.
This study highlights the critical role of DOM in improving the mechanical properties of asphalt binders, demonstrating its potential as a key additive in enhancing pavement durability and extending service life.
Yamak, H. B., et al. Colloids and Surfaces A: Physicochemical and Engineering Aspects 497 (2016): 233-241.
Dioctyl maleate (DOM), a maleic acid diester, is widely utilized as a comonomer in emulsion polymerization to improve the properties of polymer latexes. Recent studies have demonstrated its effectiveness in modifying vinyl acetate (VAc) copolymers, particularly in enhancing latex stability and particle size control.
In a semi-continuous emulsion polymerization process, VAc was copolymerized with DOM at varying weight ratios (5-40%) to investigate its impact on latex properties. The polymerization was carried out in a controlled environment, utilizing potassium persulfate (K₂S₂O₈) as an initiator and a combination of nonionic emulsifiers and co-surfactants to stabilize the pre-emulsion. The reaction proceeded stepwise at temperatures ranging from 70°C to 85°C, ensuring optimal monomer conversion.
The incorporation of DOM led to a reduction in particle size and particle size distribution, contributing to enhanced latex stability. However, when compared to dibutyl maleate (DBM), DOM exhibited slightly lower efficiency in improving stability. Key analytical techniques, including Dynamic Light Scattering (DLS) and zeta potential analysis, confirmed that DOM-modified latexes maintained favorable rheological properties and resistance to environmental stressors such as freeze-thaw cycles and ionic strength variations.
These findings highlight DOM's role in tailoring the performance of VAc-based emulsions, making it a valuable component in the synthesis of high-performance coatings, adhesives, and film-forming materials.
What is the product name of the chemical with CAS number 2915-53-9?
The product name is Dicaprylyl maleate.
Can you list any synonyms for Dicaprylyl maleate?
Some synonyms for Dicaprylyl maleate are 2-Butenedioic acid (2Z)-, 1,4-dioctyl ester; Dioctyl maleate; Maleic acid, dioctyl ester.
What is the molecular weight of Dicaprylyl maleate?
The molecular weight of Dicaprylyl maleate is 340.5.
What is the molecular formula of Dicaprylyl maleate?
The molecular formula of Dicaprylyl maleate is C20H36O4.
What is the percentage of actives in Dicaprylyl maleate?
The percentage of actives in Dicaprylyl maleate is 95%.
What is the physical state of Dicaprylyl maleate?
The physical state of Dicaprylyl maleate is liquid.
How is Dicaprylyl maleate typically used as?
Dicaprylyl maleate is typically used as a monomer, film-forming agent, and plasticizer.
What is one of the potential applications of Dicaprylyl maleate?
One of the potential applications of Dicaprylyl maleate is as a film-forming agent.
Can you provide another synonym for Dicaprylyl maleate?
Another synonym for Dicaprylyl maleate is 2-Butenedioic acid (Z)-, dioctyl ester.
Is Dicaprylyl maleate water-soluble?
Dicaprylyl maleate is not water-soluble.
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