Clusteroluminescent polymers have the most potential to be used in light conversion agricultural films due to tunable emission wavelength and large-scale production, but they are still limited by shortcomings such as poor stability and sensitivity to melting processes. In this work, we propose a core–shell confined stable clusteroluminescent polymeric nanoparticle strategy with adjustable shell thickness. By the employment of a combination of solvent and heat treatment methods, the structures, rigid-flexible properties, and aggregation states of the core polymer chains have been modified. The presence of cross-linked shells has significantly enhanced the stability of the clusteroluminescent nanoparticles, ensuring that they retain their structure form even after undergoing high temperature and shear. Finally, the stable agricultural light conversion films with tunable clusteroluminescence are obtained via melt blending of the core–shell confined nanoparticles and polyethylene (PE). Due to the shell confinement effect, when melt-blended, the shell can protect the clusteroluminescent polymer within the core from the effects of high temperature and shear. It is anticipated that the completion of this work will provide a significant foundation for the large-scale application of cluster-luminescent polymers in agriculture.

中文翻译：

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具有可调簇发光的核壳限域稳定聚合物纳米颗粒


由于发射波长可调和大规模生产，簇发光聚合物最有可能用于光转换农膜，但它们仍然受到稳定性差和对熔融过程敏感等缺点的限制。在这项工作中，我们提出了一种壳厚度可调的核壳约束稳定的簇发光聚合物纳米颗粒策略。通过采用溶剂和热处理方法的组合，核心聚合物链的结构、刚柔韧性和聚集状态得到了改变。交联壳的存在显着增强了簇发光纳米颗粒的稳定性，确保它们在经历高温和剪切后仍能保持其结构形式。最后，通过核壳限制纳米颗粒和聚乙烯 （PE） 的熔融共混，获得了具有可调簇发光的稳定农业光转换薄膜。由于壳约束效应，当熔融共混时，壳可以保护核心内的簇发光聚合物免受高温和剪切的影响。预计这项工作的完成将为团聚发光聚合物在农业中的大规模应用奠定重要基础。