The Stability Effect of Polymer on the PbS Nanoparticles

Abstract

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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GAO Ming-Yuan, YANG Yi, ZHANG Guang-Chan, BIAN Feng-Lan, YANG Bai, SHEN Jia-Cong. The Stability Effect of Polymer on the PbS Nanoparticles[J]. Chem. J. Chinese Universities, 1995, 16(8): 1311.

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The Stability Effect of Polymer on the PbS Nanoparticles

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