Esterified phenolic polymer DEMET® I-9030

What is Esterified phenolic polymer?
An esterified phenolic polymer is a specialized synthetic resin derived from phenolic compounds (like phenol) that have been chemically modified through a reaction with an acid or acid derivative to form ester linkages. This process, known as esterification, alters the properties of the base phenolic resin, typically enhancing its flexibility, solubility in certain organic solvents, and compatibility with other polymers. These polymers combine the inherent rigidity, heat resistance, and chemical stability of phenolics with new characteristics imparted by the ester groups.

Features of Esterified phenolic polymer
Key features of esterified phenolic polymers include improved solubility and processability compared to standard phenolic resins. The introduction of ester groups reduces the brittleness often associated with traditional phenolics, resulting in materials with better flexibility and toughness. They retain good thermal stability and chemical resistance, particularly against solvents and oils. Additionally, the specific properties can be finely tuned by selecting different types of acids for the esterification process, allowing for the creation of materials with a range of melting points, viscosities, and reactivity.

Applications of Esterified phenolic polymer
Esterified phenolic polymers are primarily applied as performance modifiers and binders in high-value industrial products. A major application is in the formulation of advanced coatings, inks, and varnishes, where they contribute to hardness, gloss, and chemical resistance. They are also used as key components in friction materials, such as brake pads and clutch facings, to provide thermal stability and binding properties. Furthermore, they serve as compatibilizers in polymer blends and as intermediates for synthesizing other specialty chemicals.

Price of Esterified phenolic polymer
The price of esterified phenolic polymer is generally higher than that of standard phenolic resins due to the more complex chemical processing involved. As a specialty chemical, its cost is influenced by the purity grade, the type of esterifying agent used, and the specific performance characteristics required. Prices are subject to fluctuations in the cost of raw phenol and specialty acids. Due to their niche applications in demanding sectors like automotive and aerospace, these polymers are considered value-added products with a price point reflecting their specialized performance benefits.

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