antioxidant th-cpl polymeric sterically hindered phenol
antioxidant th-cpl polymeric sterically hindered phenol
antioxidant th-cpl polymeric sterically hindered phenol
antioxidant th-cpl polymeric sterically hindered phenol
antioxidant th-cpl polymeric sterically hindered phenol
antioxidant activity of synthetic polymers of phenolic compounds

Antioxidant Activity of Synthetic Polymers of Phenolic Compounds

Polymeric phenols have received much attention owing to their potent antioxidant properties and increased stability in aqueous systems. To be truly effective in biological applications, it is important that these polymers be synthesized using benign methods.

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investigation of hindered phenol antioxidant effects on the aging

Investigation of hindered phenol antioxidant effects on the aging

Phenol-type antioxidants including the hindered phenolic compounds are the most important classes of antioxidants being extensively used because of their antioxidant activities with a...

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discovery of sterically-hindered phenol compounds with potent

Discovery of sterically-hindered phenol compounds with potent

Introduction Geographic atrophy (GA), or late-stage dry age-related macular degeneration (AMD), is characterized by degeneration and death of the retinal pigment epithelium (RPE). Severe, irreversible vision loss results when RPE atrophy and the resulting death of photoreceptors extends into the macula.

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chemo-enzymatic synthesis of renewable sterically-hindered phenolic

Chemo-Enzymatic Synthesis of Renewable Sterically-Hindered Phenolic

To date, many of these antioxidants, called phenolipids, have been synthesized from phenolic acid, flavonoids or tocopherols [19,20,21]. However, the design of these molecules is usually not optimized to provide sustainable alternatives able to challenge commercial additives for polymeric materials in terms of activity, solubility and thermal stability.

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antioxidants: hindered phenols

Antioxidants: hindered phenols

Antioxidants: hindered phenols Jan Pospisil INTRODUCTION Monohydric phenols differing in steric hindrance of the phenolic moiety and in their character of substitution at position 4 are typical chain- breaking antioxidants for commodity and engineering plastics. They have been used as processing stabilizers at temperatures up to 300¡ãC,

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a novel class of high molecular weight multifunctional antioxidants for

A novel class of high molecular weight multifunctional antioxidants for

In the current work, the synthesis of such high molecular weight bifunctional antioxidants is carried out by free-radical thiol-ene click reaction in excess of 2-mercaptoethanol (EtSH), followed by bulk transesterification with a sterically hindered phenol containing methyl ester according to Scheme 1.

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antioxidant activity of synthetic polymers of phenolic compounds

Antioxidant Activity of Synthetic Polymers of Phenolic Compounds

In recent years, developing potent antioxidants has been a very active area of research. In this context, phenolic compounds have been evaluated for their antioxidant activity. However, the use of phenolic compounds has also been limited by poor antioxidant activity in several in vivo studies. Polymeric phenols have received much attention owing to their potent antioxidant properties and ...

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chemo-enzymatic synthesis of renewable sterically-hindered phenolic

Chemo-Enzymatic Synthesis of Renewable Sterically-Hindered Phenolic

Herein, we report a sustainable chemo-enzymatic synthesis of renewable lipophilic antioxidants specifically designed to overcome these restrictions using naturally occurring ferulic acid (found in lignocellulose) and vegetal oils (i.e., lauric, palmitic, stearic acids, and glycerol) as starting materials.

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antioxidants: hindered phenols

Antioxidants: hindered phenols

Posp¨ª?il, J. (1993) Chemical and photochemical behaviour of phenolic antioxidants in polymer stabilization ¡ª a state of the art report, Parts I, II, Polymer Degradation and Stability, 39, 103¨C115; 40, 217-232. CrossRef Google Scholar

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synthesis of novel-dl-¦Á-tocopherol-based and sterically-hindered-phenol

Synthesis of Novel-dl-¦Á-Tocopherol-Based and Sterically-Hindered-Phenol

Facile synthetic route to polymerizable hindered amine light stabilizers for transition-metal-catalyzed olefin copolymerization. Journal of Polymer Science Part A: Polymer Chemistry 2004, 42 (6) , 1350-1355. DOI: 10.1002/pola.11082.

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