Synthesis and Characterization of Polymer Nanocomposite Films Based on PEO/ AgNPs-PVP: Structural, Thermal, Optical, and Electrical Properties

IF 3.9 3区化学 Q2 POLYMER SCIENCE

Journal of Inorganic and Organometallic Polymers and Materials Pub Date : 2024-09-03 DOI:10.1007/s10904-024-03220-2

M. K. Alqadi, H. M. Al-Khateeb, F. Y. Alzoubi, A. B. Migdadi

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Abstract

Polymer nanocomposite films based on polyethylene oxide (PEO) and various concentrations of silver nanoparticles (AgNPs) coated with polyvinylpyrrolidone (PVP) were prepared. It was found that the crystallinity degree of PEO/AgNPs films changed depending on the AgNPs content. For instance, the minimum crystallinity value was at 3 wt% of AgNPs, indicating an excellent interaction between the AgNPs and PEO chains. Furthermore, the thermal stability of the nanocomposite is boosted by increasing the AgNPs content in the polymer matrix. Also, differential scanning calorimetry (DSC) results exhibited an endothermic peak for pure PEO, while incorporating different concentrations of AgNPs reduced the melting temperature and melting enthalpy and created another exothermic peak at crystallization temperatures range (186 °C to 201 °C). Finally, the sheet resistance value of PEO/AgNPs films decreases by incorporating different AgNPs in the PEO blend in addition to a tiny gradual reduction in the bandgap energy (E_g) and substantial changes in transmittance and absorbance spectra.

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基于 PEO/ AgNPs-PVP 的聚合物纳米复合薄膜的合成与表征：结构、热学、光学和电学特性

制备了基于聚氧化乙烯（PEO）和不同浓度的银纳米粒子（AgNPs）的聚合物纳米复合薄膜，并在薄膜上涂覆了聚乙烯吡咯烷酮（PVP）。研究发现，PEO/AgNPs 膜的结晶度随 AgNPs 含量的变化而变化。例如，当 AgNPs 含量为 3 wt% 时，结晶度最小，这表明 AgNPs 与 PEO 链之间具有良好的相互作用。此外，随着聚合物基体中 AgNPs 含量的增加，纳米复合材料的热稳定性也得到了提高。此外，差示扫描量热法（DSC）结果显示，纯 PEO 有一个内热峰，而加入不同浓度的 AgNPs 会降低熔化温度和熔化焓，并在结晶温度范围（186 ℃ 至 201 ℃）内产生另一个放热峰。最后，PEO/AgNPs 薄膜的薄层电阻值会随着 PEO 混合物中不同 AgNPs 的加入而降低，此外，带隙能（Eg）也会逐渐降低，透射率和吸光度光谱也会发生重大变化。

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来源期刊

Journal of Inorganic and Organometallic Polymers and Materials 化学-高分子科学

CiteScore

8.30

自引率

7.50%

发文量

335

审稿时长

1.8 months

期刊介绍： Journal of Inorganic and Organometallic Polymers and Materials [JIOP or JIOPM] is a comprehensive resource for reports on the latest theoretical and experimental research. This bimonthly journal encompasses a broad range of synthetic and natural substances which contain main group, transition, and inner transition elements. The publication includes fully peer-reviewed original papers and shorter communications, as well as topical review papers that address the synthesis, characterization, evaluation, and phenomena of inorganic and organometallic polymers, materials, and supramolecular systems.