高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (8): 1311.

• 论文 • 上一篇    下一篇

聚合物对硫化铅钠米微粒的稳定作用

高明远, 杨毅, 张广灿, 边凤兰, 杨柏, 沈家骢   

  1. 吉林大学化学系, 长春, 130023
  • 收稿日期:1994-09-13 修回日期:1995-02-20 出版日期:1995-08-24 发布日期:1995-08-24
  • 通讯作者: 高明远,男,28岁,博士研究生.
  • 作者简介:高明远,男,28岁,博士研究生.
  • 基金资助:

    国家自然科学基金

The Stability Effect of Polymer on the PbS Nanoparticles

GAO Ming-Yuan, YANG Yi, ZHANG Guang-Chan, BIAN Feng-Lan, YANG Bai, SHEN Jia-Cong   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1994-09-13 Revised:1995-02-20 Online:1995-08-24 Published:1995-08-24

PDF (PC)

被引次数

21

摘要： 以含铅聚合物微凝胶与H2S气体反应制得PbS纳米微粒/聚合物复合体系,利用小角X光散射方法对复合在聚合物中的PbS纳米微粒的粒度及分布进行了表征,研究了不同反应条件对其粒度及复合体系稳定性的影响。实验结果证明H2S的用量及小分子含铅反应物的引入对复合的PbS纳米微粒的粒度有一定的控制作用。由于聚合物对PbS纳米微粒具有非常好的稳定作用,PbS纳米微粒的粒度随H2S量的增加变化很小,且分布均一,体系具有长期稳定性;而不同量的小分子铅盐的引入对PbS纳米微粒粒度变化影响很大,随着小分子铅盐比例的增加粒度分布变宽,体系稳定性下降。

关键词: 小角X光散射, PbS纳米微粒, 稳定性, 粒度及其分布

Abstract: Using SAXS method,the particle size and its distribution of the PbSnanoparticles doped in the polymer matrices were characterized.Based on the SAXS results together with direct observation,the effect of the reaction conditions on the stability of the composite system was obtained.The experiment revealed that the amount of the H2S used in reacting with the P-Pb can affect the PbS particle size and its distribution, but this effect is very small,because of the good stability effect of polymer on the PbS nanoparticles,the composite system possesses a long-term stability.While the particle size and its distribution can be changed in a larger range when small organic lead salt was introduced into the reaction system.The particle size and its distribution were growing as the increasing of the proportion of PB(MA)2to P-Pb.As a result,the composite system lost its stability at high Pb(MA)2concentration.

Key words: Small angle X-ray scattering(SAXS), PbS nanoparticles, Stability, Particle size and its distribution

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