Althues H, Simon P, Philipp F, Kaskel S
Institute for Inorganic Chemistry, Technical University of Dresden, Mommsenstr 6, 01069 Dresden, Germany.
J Nanosci Nanotechnol. 2006 Feb;6(2):409-13. doi: 10.1166/jnn.2006.917.
A new method for the preparation of transparent ZnO/PBDMA nanocomposites (PBDMA = poly(butanediolmonoacrylate)) is reported. Zinc oxide nanocrystals (4-10 nm) were synthesized in ethanol and then transferred into butanediolmonoacrylate (BDMA) to obtain a transparent and stable colloidal suspension. No further growth or aggregation of the particles could be observed, after dispersing the particles in the monomer. Effective size control in the range of 6-10 nm and concentrations up to 10 wt% zinc oxide were demonstrated for these systems. The particles and suspensions were characterized by transmission electron microscopy, X-ray diffraction, UV-VIS spectroscopy and dynamic light scattering. The addition of trimethylolpropane triacrylate (TMPTA) and a photoinitiator to the ZnO/BDMA suspension lead to a UV-curable liquid. Photoinduced polymerization was used to produce transparent nanocomposites containing the nanoparticles. The material exhibits a strong UV absorption below 360 nm, a high transmission (90%) in the visible spectral range and a green photoluminescence.
报道了一种制备透明ZnO/PBDMA纳米复合材料（PBDMA = 聚丁二醇单丙烯酸酯）的新方法。在乙醇中合成氧化锌纳米晶体（4 - 10纳米），然后转移到丁二醇单丙烯酸酯（BDMA）中，以获得透明且稳定的胶体悬浮液。将颗粒分散在单体中后，未观察到颗粒进一步生长或聚集。对于这些体系，证明了有效尺寸控制在6 - 10纳米范围内，氧化锌浓度高达10 wt%。通过透射电子显微镜、X射线衍射、紫外 - 可见光谱和动态光散射对颗粒和悬浮液进行了表征。向ZnO/BDMA悬浮液中添加三羟甲基丙烷三丙烯酸酯（TMPTA）和光引发剂可得到可紫外固化的液体。利用光致聚合制备了含有纳米颗粒的透明纳米复合材料。该材料在360纳米以下表现出强烈的紫外吸收，在可见光谱范围内具有高透射率（90%）和绿色光致发光。
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