Synthesis, characterization and stabilization effect of antioxidant-functionalized celluloses

Weigl, Sabrina; Raffetzeder, Sabine; Paulik, Christian

doi:10.1016/j.polymdegradstab.2016.09.020

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…The shifts at 123.7, 130.0, 134.9, and 151.1 ppm are corresponding to the absorption peaks of C11, C12, C13, and C16 on the benzene ring, respectively. Besides, the shifts at 174.7, 36.0, 24.6, 33.3, and 29.9 ppm are assigned to the absorption peaks of C8, C9, C10, C14, and C15, respectively 38 . The result of 13 C‐NMR analysis further indicates that the reaction between AO and COS is successfully performed.…”

Section: Resultsmentioning

confidence: 74%

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Fabrication of a novel chitosan‐based macromolecular antioxidant and its effects on the anti‐aging properties of styrene‐butadiene rubber/silica composites

Pan

Xie

et al. 2023

Vinyl Additive Technology

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In this work, a novel chitosan‐based macromolecular rubber antioxidant (denoted as COS‐AO) was successfully synthesized by using chitosan (COS) and 3‐(3,5‐di‐tert‐butyl4‐hydroxyphenyl) propionic acid (antioxidant, AO) via esterification reaction. The FTIR, 1H NMR, 13C NMR, and elemental analysis measurements were used to confirm the structure of COS‐AO. The performance of COS‐AO as a macromolecular antioxidant for styrene‐butadiene rubber (SBR)/silica composites were examined by oxidation induction time (OIT) test, methanol extraction experiments, accelerated thermo‐oxidative aging tests as well as thermogravimetric (TG) test. The results indicated that the macromolecular antioxidant COS‐AO presented better extraction resistance and migration resistance in SBR/silica composites compared to the small molecular antioxidant AO. Moreover, COS‐AO significantly improved the thermal stability as well as the value of the oxidation induction time of SBR/silica composites, exhibiting superior thermo‐oxidative aging resistance. In addition, the potential antioxidative mechanism of COS‐AO in SBR/silica composites was also discussed.

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Section: Resultsmentioning

confidence: 74%

“…Besides, the shifts at 174.7, 36.0, 24.6, 33.3, and 29.9 ppm are assigned to the absorption peaks of C8, C9, C10, C14, and C15, respectively. 38 The result of 13 C-NMR analysis further indicates that the reaction between AO and COS is successfully performed.…”

Section: The 1 H-nmr and 13 C-nmr Of Cos-aomentioning

confidence: 84%