Enhanced photostability of polyvinyl chloride films through antipyrine derivatives: a comprehensive study on UV resistance and degradation inhibition

IF 2.8 4区工程技术 Q2 POLYMER SCIENCE Macromolecular Research Pub Date : 2024-08-19 DOI:10.1007/s13233-024-00310-5

Safaa Mohamed, Emad Yousif, Mohammed Kadhom, Muna Bufaroosha

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Abstract

Almost all fabricated polymers need high stabilization to prevent harmful effects. Adding specialized chemicals that rule as light stabilizers (or UV stabilizers) and tailor to the resin's characteristics might accomplish the desired stability. In this work, five antipyrine derivatives were synthesized by the Schiff bases using five benzaldehyde substituents (benzaldehyde, 4-bromobenzaldehyde, 4-nitrobenzaldehyde, 4-dimethylaminobenzaldehyde, and 4-hydroxybenzaldehyde) with 4-aminoantipyrene. The produced complexes are characterized using hydrogen-1 and carbon-13 nuclear magnetic resonance (¹H-NMR and ¹³C-NMR, respectively) and Fourier-transform infrared (FTIR) spectroscopy; then they are filled with polyvinyl chloride (PVC) films. Further techniques are used to study the effects of long-term radiation exposure on these films. The IR spectra of PVC films showed side products containing polyene and carbonyl groups before, during, and after irradiation. The presence of antipyrine derivatives led to a decrease in the intensity of their associated functional groups. Furthermore, it is shown that films with antipyrine compounds performed lower weight loss when exposed to radiation compared with the virgin film.

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通过抗吡啶衍生物增强聚氯乙烯薄膜的光稳定性：抗紫外线和抑制降解的综合研究

几乎所有的人造聚合物都需要高度的稳定性来防止有害影响。添加专门的化学品作为光稳定剂（或紫外线稳定剂），并根据树脂的特性进行调整，可以达到所需的稳定性。在这项研究中，我们利用五种苯甲醛取代基（苯甲醛、4-溴苯甲醛、4-硝基苯甲醛、4-二甲氨基苯甲醛和 4-羟基苯甲醛）与 4-氨基安替比林合成了五种安替比林衍生物。利用氢-1 和碳-13 核磁共振（分别为 1H-NMR 和 13C-NMR）以及傅立叶变换红外光谱（FTIR）对生成的复合物进行表征，然后将其填充到聚氯乙烯（PVC）薄膜中。此外，还采用了进一步的技术来研究长期辐照对这些薄膜的影响。聚氯乙烯薄膜的红外光谱显示，在辐照前、辐照中和辐照后都有含有聚烯基和羰基的副产品。抗吡啶衍生物的存在导致其相关官能团的强度降低。此外，研究还表明，与原始薄膜相比，含有抗吡啶化合物的薄膜在受到辐照时重量损失较小。

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来源期刊

Macromolecular Research 工程技术-高分子科学

CiteScore

4.70

自引率

8.30%

发文量

100

审稿时长

1.3 months

期刊介绍： Original research on all aspects of polymer science, engineering and technology, including nanotechnology Presents original research articles on all aspects of polymer science, engineering and technology Coverage extends to such topics as nanotechnology, biotechnology and information technology The English-language journal of the Polymer Society of Korea Macromolecular Research is a scientific journal published monthly by the Polymer Society of Korea. Macromolecular Research publishes original researches on all aspects of polymer science, engineering, and technology as well as new emerging technologies using polymeric materials including nanotechnology, biotechnology, and information technology in forms of Articles, Communications, Notes, Reviews, and Feature articles.