Antioxidant activity is one of the major properties needed in packaging. Antioxidants protect goods and also packaging itself from aging. This ability is given by additives present in polymer matrices, and they obey to strict regulations (e.g., REACH). Unfortunately, these molecules are often petro-based and may occasionally be toxic (e.g., BHT). Moreover, the choice of the antioxidant structure may be limited by factors such as volatility and solubility.<br/><br/>Today, the development of biorefineries opens new perspectives for the development of potent and eco-friendly antioxidant additives. Lignocellulosic biomass, which is rich in hindered phenolics acting like free radicals scavengers, can provide structures with potent antioxidant properties. On the other hand, oleaginous biomass is an abundant source of renewable apolar aliphatic chains.<br/><br/>In this work, we have developed a novel family of renewable phenolic compounds from lignocellulose (e.g., ferulic acid) and oleaginous biomasses (e.g., fatty acids) using a chemo-enzymatic process. In order to avoid volatility issues and warrant an efficient solubility during their incorporation in polyolefins, their polarities have been judiciously designed by playing with their chemical structure (SAR). The antiradical activity and the surfactant properties of these bisphenols was then determined by DPPH and contact angle studies, respectively.

Chemo-enzymatic synthesis of renewable antioxidant additives with tunable polarity from lignocellulose and vegetal oils

253rd National Meeting (2017)

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