6533b85dfe1ef96bd12bf218
RESEARCH PRODUCT
Anti-/Pro-Oxidant Behavior of Naturally Occurring Molecules in Polymers and Biopolymers: A Brief Review
Francesca D'annaNadka Tzankova Dintchevasubject
chemistry.chemical_classificationOxidative degradationRenewable Energy Sustainability and the EnvironmentChemistryGeneral Chemical Engineering02 engineering and technologyGeneral ChemistryPolymerSettore CHIM/06 - Chimica OrganicaPolyphenols Vitamins Carotenoids Oxidative degradation Polymer and biopolymer protection Melt stabilization Durability Pro-oxidant activity010402 general chemistry021001 nanoscience & nanotechnologyPro-oxidant01 natural sciences0104 chemical sciencesHuman healthSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiChemical engineeringEnvironmental ChemistryMolecule0210 nano-technologydescription
Polymers and biopolymers are continuously subjected to the action of different stress factors, such as oxygen, heat, UV light, mechanical stress, humidity, etc., during their processing and service life, undergoing overall oxidative degradation, that causes performance and property deterioration. To improve the resistance at high temperatures and long-term weatherability of the polymers and biopolymers, usually, during their manufacturing, synthetic antioxidants and UV-light stabilizers are added. In the past decade, several concerns related to the impact of the synthetic stabilizers have emerged, and to reduce their negative effect on human health and the environment, their replacement with naturally occurring molecules, having similar protection abilities, is greatly welcome. It has been demonstrated that several natural polyphenols, vitamins, and carotenoids are efficient and suitable stabilizers for the protection of polymers and biopolymers from oxidative degradation. Besides, it is worth noting that some natural compounds exhibit concentrationdependent anti-/pro-oxidant activity in biopolymers and polymers, for the rational control of the additive contents. In this perspective, we briefly analyze the current results related to innovation in considering natural molecules for polymer and biopolymer protection or pro-oxidation, having potential industrial applications, pointing out some advantages, e.g. protection actions, and drawbacks, e.g. pro-oxidant and/or plasticizing actions, of these approaches.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-07-02 |