Up to now, most of the reported phase change materials only show a single application in thermal energy storage and can not satisfy the increasing demand for multifunctional materials. In this study, we first designed and prepared a novel multi-functional photoluminescence form-stable phase change materials (FSPCMs) using photoluminescence side chain liquid crystalline polymers with different flexible spacers length as gelators, and using paraffin as phase change materials. The properties, and the effect of flexible spacer length on the properties of photoluminescence FSPCMs were studied in detail by “tube test” method, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), fourier-transform infrared spectroscopy (FT-IR), polarized optical microscopy (POM), rheometry test, ultraviolet spectroscopy (UV) and photoluminescence instruments (PL). Experiment results showed that the prepared photoluminescence FSPCMs showed high thermal energy storage density and solid fluorescence quantum yield. The phase transition enthalpy for our prepared photoluminescence FSPCMs can reach 193.1 J g^-1 and the solid fluorescence quantum yield can achieve 16.54%. The prepared photoluminescence FSPCMs can also absorb UV light and can be used as UV shielding materials. The properties of photoluminescence FSPCMs varied with the spacer length of polymer gelators. With increasing spacer length, the thermal stability and mechanical property of prepared photoluminescence FSPCMs showed the trend of deterioration. However, the solid fluorescence quantum yield of them increased with the increasing spacer length of polymer gelators.

到目前为止，大多数报道的相变材料仅在热能存储中显示出单一的应用，不能满足对多功能材料日益增长的需求。在这项研究中，我们首先设计和制备了一种新型的多功能光致发光形状稳定相变材料（FSPCM），该材料使用具有不同柔性间隔物长度的光致发光侧链液晶聚合物作为胶凝剂，并使用石蜡作为相变材料。通过“试管法”，差示扫描量热法（DSC），热重分析（TGA），傅里叶变换红外光谱（FT-IR），详细研究了柔性间隔物的长度以及柔性间隔物长度对光致发光PCM的影响。 ，偏光光学显微镜（POM），流变学测试，紫外光谱（UV）和光致发光仪器（PL）。实验结果表明，制备的光致发光FSPCM具有较高的热能储存密度和固体荧光量子产率。我们准备的光致发光FSPCM的相变焓可以达到193.1 J g^-1和固体荧光量子产率可达到16.54％。制备的光致发光FSPCM也可以吸收紫外线，并且可以用作紫外线屏蔽材料。光致发光FSPCM的特性随聚合物胶凝剂的间隔物长度而变化。随着间隔物长度的增加，所制备的光致发光FSPCM的热稳定性和机械性能显示出劣化的趋势。然而，它们的固体荧光量子产率随着聚合物胶凝剂间隔物长度的增加而增加。