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Effect of Tea Polyphenols on the Melt Grafting of Glycidyl Methacrylate onto Polypropylene
It is considered to be one of the most effective strategies to prepare functionalized polypropylene (PP) materials via the melt grafting of polar monomers onto PP chains. However, the grafting efficiency of functional monomers is generally low. To achieve a high grafting efficiency, we explored the...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9735711/ https://www.ncbi.nlm.nih.gov/pubmed/36501646 http://dx.doi.org/10.3390/polym14235253 |
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author | Zheng, Xin He, Lina Yu, Guipeng Li, Yongjin |
author_facet | Zheng, Xin He, Lina Yu, Guipeng Li, Yongjin |
author_sort | Zheng, Xin |
collection | PubMed |
description | It is considered to be one of the most effective strategies to prepare functionalized polypropylene (PP) materials via the melt grafting of polar monomers onto PP chains. However, the grafting efficiency of functional monomers is generally low. To achieve a high grafting efficiency, we explored the effect of tea polyphenols (C), which are good free radical scavengers, on the melt grafting of glycidyl methacrylate (GMA) onto PP chains initiated by dicumyl peroxide (DCP). Specifically, 0.5~3 wt% of tea polyphenols (C) were introduced to the PP/DCP/GMA melt blending system. The morphology, melt flow rate (MFR), thermal and mechanical properties of tea polyphenols (C) incorporated PP/DCP/GMA blends were investigated systematically. The results showed that the proper amount of tea polyphenols (C) (0.5~2 wt%) promoted the grafting of GMA. Unexpectedly, the PP backbone suffered from more severe degradation with the addition of tea polyphenols (C). The phenomena were ascribed to the reaction between phenolic hydroxyl groups of tea polyphenols (C) and epoxy groups of grafted GMA, which was revealed by the FTIR results. In addition, according to DSC and the tensile test, the co-grafting of GMA and tea polyphenols (C) improved the crystallization ability, yield strength and Young’s modulus of the PP matrix. |
format | Online Article Text |
id | pubmed-9735711 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-97357112022-12-11 Effect of Tea Polyphenols on the Melt Grafting of Glycidyl Methacrylate onto Polypropylene Zheng, Xin He, Lina Yu, Guipeng Li, Yongjin Polymers (Basel) Article It is considered to be one of the most effective strategies to prepare functionalized polypropylene (PP) materials via the melt grafting of polar monomers onto PP chains. However, the grafting efficiency of functional monomers is generally low. To achieve a high grafting efficiency, we explored the effect of tea polyphenols (C), which are good free radical scavengers, on the melt grafting of glycidyl methacrylate (GMA) onto PP chains initiated by dicumyl peroxide (DCP). Specifically, 0.5~3 wt% of tea polyphenols (C) were introduced to the PP/DCP/GMA melt blending system. The morphology, melt flow rate (MFR), thermal and mechanical properties of tea polyphenols (C) incorporated PP/DCP/GMA blends were investigated systematically. The results showed that the proper amount of tea polyphenols (C) (0.5~2 wt%) promoted the grafting of GMA. Unexpectedly, the PP backbone suffered from more severe degradation with the addition of tea polyphenols (C). The phenomena were ascribed to the reaction between phenolic hydroxyl groups of tea polyphenols (C) and epoxy groups of grafted GMA, which was revealed by the FTIR results. In addition, according to DSC and the tensile test, the co-grafting of GMA and tea polyphenols (C) improved the crystallization ability, yield strength and Young’s modulus of the PP matrix. MDPI 2022-12-01 /pmc/articles/PMC9735711/ /pubmed/36501646 http://dx.doi.org/10.3390/polym14235253 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zheng, Xin He, Lina Yu, Guipeng Li, Yongjin Effect of Tea Polyphenols on the Melt Grafting of Glycidyl Methacrylate onto Polypropylene |
title | Effect of Tea Polyphenols on the Melt Grafting of Glycidyl Methacrylate onto Polypropylene |
title_full | Effect of Tea Polyphenols on the Melt Grafting of Glycidyl Methacrylate onto Polypropylene |
title_fullStr | Effect of Tea Polyphenols on the Melt Grafting of Glycidyl Methacrylate onto Polypropylene |
title_full_unstemmed | Effect of Tea Polyphenols on the Melt Grafting of Glycidyl Methacrylate onto Polypropylene |
title_short | Effect of Tea Polyphenols on the Melt Grafting of Glycidyl Methacrylate onto Polypropylene |
title_sort | effect of tea polyphenols on the melt grafting of glycidyl methacrylate onto polypropylene |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9735711/ https://www.ncbi.nlm.nih.gov/pubmed/36501646 http://dx.doi.org/10.3390/polym14235253 |
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