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用新的方法将ＰｂＳ纳米微粒复合在聚苯乙烯光学塑料中，并利用吸收光谱、小角Ｘ－光散射和透射电镜等方法研究了不同反应条件对复合的硫化铅（ＰｂＳ）纳米微粒粒度及分布的影响．结果表明，在一定范围内Ｈ２Ｓ的量和初始含铅聚合物浓度对纳米微粒的粒度影响很小，但对其粒度分布影响较大；当Ｈ２Ｓ与Ｐｂ２＋的摩尔比及初始含铅聚合物浓度均较大时，纳米微粒的粒度分布变宽．实验结果表明复合于聚苯乙烯中的ＰｂＳ的粒度分布是由溶液中反应决定的，本体聚合反应时对ＰｂＳ微粒的粒度分布影响很小．因此控制适当反应条件，可以得到粒度分布均一、分散均匀且透明性好的ＰｂＳ纳米微粒复合有机光学材料．
A new method was used to synthesize PbS nanoparticles in polystyrene optical plastics. The absorption spectra, small angle X-ray scattering and transmission electron microscopy were used to study the particle size and distribution of PbS nanoparticles under different reaction conditions. Impact. The results show that the amount of H2S and the concentration of initial lead-containing polymer have a small effect on the particle size of the nanoparticles within a certain range, but have a great effect on the particle size distribution. When the molar ratio of H2S to Pb2 + and the concentration of the initial lead-containing polymer Larger, the particle size distribution of nanoparticles becomes wider. The experimental results show that the particle size distribution of PbS complexed in polystyrene is determined by the reaction in solution, and the bulk polymerization has little effect on the particle size distribution of PbS particles. Therefore, proper reaction conditions can be controlled to obtain a uniform particle size distribution, uniform dispersion and good transparency of PbS nanoparticle composite organic optical materials.