微波爆聚法合成荧光性类水滑石/PMMA复合材料

Synthesis of fluorescent hydrotalcite/PMMA nanocomposite by microwave implosion method

利用微波爆聚法快速合成了发黄色荧光的有机/无机聚合物纳米复合材料。用红外光谱、荧光光谱、XRD、TEM、热分析等对结构和性能进行了表征。结果表明,黄光类水滑石片层已充分剥离并均匀分散于PMMA基质中,在468nm蓝光激发下,产生明亮的黄光发射,并且相较于PMMA具有更高的热稳定性。微波爆聚法为实现无机板层快速剥离并在聚合物基体中均匀分散提供了新的高效途径,有望在制备各种聚合物/层状无机物纳米复合材料中得到应用。

An exfoliated yellow light emission polymer/layered inorganic nanocomposite was rapidly synthesized by microwave implosion method.The composition and structure of the resulted nanocomposite were characterized and determined by fluorescence spectrum,XRD,TG,TEM,etc.The results indicate that the brucite-like layers of hydrotalcite-like compound were completely exfoliated in PMMA matrix,the nanocomposite can mainly emit yellow light under excitation at 468nm.The nanocomposite also has better thermal stability than that of the pure PMMA.Microwave implosion method provides a new and efficient way in which the inorganic layers can be exfoliated rapidly and uniformly disperse in the polymer matrix in nano-sized.The method is expected to be applied in the synthesis of various types of polymer/layered inorganic nanocomposites.