In the realm of polymer science and manufacturing, understanding the chemical backbone of additives is key to optimizing material performance. Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, identified by its CAS number 2082-79-3 and widely recognized as Antioxidant 1076, plays a pivotal role in ensuring the longevity and integrity of a vast array of polymer products. This article, brought to you by NINGBO INNO PHARMCHEM CO.,LTD., a prominent manufacturer in the field, will shed light on the chemical properties and crucial applications of this essential additive.

Chemical Structure and Mechanism of Action

Antioxidant 1076 is a sterically hindered phenolic compound. Its molecular structure, C35H62O3, features a bulky octadecyl (stearyl) tail attached to a propionate ester, which in turn is linked to a 3,5-di-tert-butyl-4-hydroxyphenyl group. This specific configuration is critical for its function:

• Hindered Phenolic Group: The hydroxyl (-OH) group on the phenyl ring is sterically hindered by the flanking tert-butyl groups. This hindrance makes the hydrogen atom on the hydroxyl group readily available to donate to peroxyl radicals (ROO•), which are key intermediates in polymer auto-oxidation.
• Radical Scavenging: Upon donating a hydrogen atom, Antioxidant 1076 forms a stable phenoxyl radical that does not readily propagate the oxidation chain reaction. The bulky tert-butyl groups prevent dimerization or further reactive interactions of this radical.
• Octadecyl Tail: The long, fatty octadecyl chain enhances the compatibility of the antioxidant with hydrophobic polymer matrices (like polyolefins) and significantly reduces its volatility. This ensures that the antioxidant remains within the polymer during high-temperature processing and service, providing persistent protection.

Key Applications and Benefits Driven by CAS 2082-79-3

The unique chemical properties of Antioxidant 1076 translate into tangible benefits across numerous applications:

• Polymer Processing: It is indispensable for stabilizing polymers like polyethylene (PE) and polypropylene (PP) during extrusion and molding. It minimizes degradation caused by heat and shear, preventing viscosity loss and gel formation, thus ensuring consistent product quality and processing efficiency. Manufacturers rely on this additive when they buy it from a trusted supplier.
• Long-Term Thermal Stabilization: The antioxidant offers excellent protection against thermal degradation over extended periods, preserving the mechanical properties and appearance of finished goods. This is vital for products exposed to heat during their lifecycle.
• Food Contact Applications: With regulatory approvals in various regions, CAS 2082-79-3 is widely used in plastics for food packaging, ensuring product safety and compliance.
• Synergistic Effects: It demonstrates synergistic performance when combined with secondary antioxidants (e.g., phosphites), offering a more comprehensive stabilization package.

Partnering with NINGBO INNO PHARMCHEM CO.,LTD.

As a leading manufacturer and supplier in China, NINGBO INNO PHARMCHEM CO.,LTD. provides high-purity Antioxidant 1076 (CAS 2082-79-3) that meets international standards. We understand the critical role of chemical composition and consistency for our clients. By choosing us, you ensure access to a reliable supply of this key additive, backed by competitive pricing and dedicated technical support. When you need to secure your polymer formulations, trust our expertise.

Conclusion

The chemical integrity and performance of polymers are significantly enhanced by the strategic use of additives like Antioxidant 1076. Its specific chemical structure, characterized by CAS 2082-79-3, enables effective radical scavenging and superior compatibility. For businesses seeking to optimize their polymer products, securing a dependable supply of this additive is paramount. We invite you to connect with NINGBO INNO PHARMCHEM CO.,LTD. to learn more and obtain a quote for your Antioxidant 1076 needs.