THE EFFECTS OF REACTION CONDITIONS ON THE PARTICLE SIZE AND ITS SIZE DISTRIBUTION OF PbS NANOPARTICLES ASSEMBLED IN POLYSTYRENE

YANG Yi; GAO Ming-yuan; BIAN Feng-lan; YANG Bai; SHEN Jia-cong

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THE EFFECTS OF REACTION CONDITIONS ON THE PARTICLE SIZE AND ITS SIZE DISTRIBUTION OF PbS NANOPARTICLES ASSEMBLED IN POLYSTYRENE

Research Article | 更新时间：2021-03-19

- THE EFFECTS OF REACTION CONDITIONS ON THE PARTICLE SIZE AND ITS SIZE DISTRIBUTION OF PbS NANOPARTICLES ASSEMBLED IN POLYSTYRENE
- Acta Polymerica Sinica Issue 4, Pages: 477-482(1995)
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- Published：20 August 1995，
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YANG Yi, GAO Ming-yuan, BIAN Feng-lan, YANG Bai, SHEN Jia-cong. THE EFFECTS OF REACTION CONDITIONS ON THE PARTICLE SIZE AND ITS SIZE DISTRIBUTION OF PbS NANOPARTICLES ASSEMBLED IN POLYSTYRENE. [J]. Acta Polymerica Sinica (4):477-482(1995)
DOI：

YANG Yi, GAO Ming-yuan, BIAN Feng-lan, YANG Bai, SHEN Jia-cong. THE EFFECTS OF REACTION CONDITIONS ON THE PARTICLE SIZE AND ITS SIZE DISTRIBUTION OF PbS NANOPARTICLES ASSEMBLED IN POLYSTYRENE. [J]. Acta Polymerica Sinica (4):477-482(1995) DOI：

摘要

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．

Abstract

new method was used to synthesize the PbS nanoparticles in polystyrene matrix. Absorption spectra

small angle x-ray scattering(SAXS) and TEM were utilized to characterize the average particle size and the size distribution.The amount of H2S and the initial concentration of Ph2+-containing copolymer affect on nanoparticle size slightly

but greatly for the particle size:distribution. The distribution is getting broad as increasing the concentration of H2S and the Pb2+-containing copolymer. The reaction conditions during the formation of the PbS nanopar--rticles in solution determine the size distribution. The bulk polymerization process has little effects on it. By controlling the reaction conditions properly

an organic optical composite with good transparence was obtained

in which the PbS nanoparti-cles with a narrow particle size distribution were well dispersed.

关键词

聚苯乙烯光学材料PbS纳米微粒粒度分布

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