The present work aims to investigate the impact of a low amount of photo-induced silver nanoparticles (0.2 and 0.4 wt.% of Ag NPs) on the stability of acrylate materials (carriers of ester and ether groups) under the combined effect of oxygen and light. Different techniques were implemented to monitor the structural changes at different scales. The determination of the influence of AgNPs required a preliminary investigation of the pure acrylate polymer under the same experimental conditions. The polymer underwent a post-polymerization of the residual vinyl groups and a photo-oxidative degradation. This degradation induced chemical modifications evidenced by infrared spectroscopy and architectural changes resulting from chain scission reactions. These reactions were not only responsible for the steaming of volatile organic compounds, detected by HS-SPME/GCMS but also for the increase in mesh size controlled by thermoporosimetry.

As regards the polymer/Ag NPs composite, the higher the amount of filler dispersed in the matrix, the greater the rate of degradation-. This behaviour was due to the photocatalytic effect of Ag NPs, regardless of the loading in nanoparticles. As a result of irradiation, the nanoparticles migrate to the surface of the film and coalesce, thus inducing an increase in size distribution and a gradient structuring as revealed by TEM analysis.

The outcomes of this investigation are important for the development of new composite material with new functionalities (antibacterial, optical, conductive properties) for industrial applications as in textile industry.

本工作旨在研究在氧气和氧气的联合作用下，少量光诱导的银纳米颗粒（Ag NP的0.2和0.4 wt。％）对丙烯酸酯材料（酯和醚基的载体）稳定性的影响。光。实施了不同的技术来监视不同规模的结构变化。确定AgNPs的影响需要在相同的实验条件下对纯丙烯酸酯聚合物进行初步研究。该聚合物经历残余乙烯基的后聚合和光氧化降解。这种降解诱导了化学修饰，红外光谱和断链反应导致的结构变化证明了这一点。这些反应不仅负责挥发挥发性有机化合物，MS还可用于通过热孔隙率法控制的筛孔尺寸的增加。

关于聚合物/ Ag NPs复合物，分散在基体中的填料数量越高，降解速率越大。此行为归因于Ag NP的光催化作用，而不管纳米粒子中的负载如何。作为照射的结果，纳米颗粒迁移到膜的表面并聚结，从而引起尺寸分布的增加和由TEM分析揭示的梯度结构。

这项研究的结果对于开发具有新型功能（抗菌，光学，导电性能）的新型复合材料非常重要，这种复合材料可用于纺织工业中的工业应用。