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用简便方法以超支化聚酯为模板合成Cu-Ag合金
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齐鲁工业大学

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A Convenient Approach for Preparation of Cu-Ag Alloy Particles by Using Hyperbranched Polymers as Templates
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    摘要:

    以超支化聚酯为模板,用抗坏血酸为还原剂合成了不同摩尔比的Cu-Ag 粒子。用第一代超支化聚酯为核,2, 2-二羟甲基丙酸为支化单体,通过逐步聚合反应合成了第三代的超支化聚酯。合成的超支化聚酯和Cu-Ag合金用红外光谱(FT-IR),核磁共振普(1H-NMR),紫外光谱(UV-vis),X-射线衍射(XRD),能量分散X射线分析(EDX)和激光粒度分析等。XRD 和EDX研究确认了Cu-Ag合金的形成。激光粒度仪, 扫描电镜(SEM)和透射电镜(TEM)研究表明Cu-Ag合金的平均粒径为120纳米,并且具有很好的分散性。热性能用热重分析(TGA)进行了表征,结果显示测量值和理论值相近。

    Abstract:

    Cu-Ag particles with different molar ratio have been prepared in the hyperbranched polyester matrix by using ascorbic acid as a reducing agent. The third generation hyperbranched polyester has been synthesized by step by step polymerization using the first generation hyperbranched polyester as core molecular and 2, 2-dimethylol propionic acid as branched monomer. The synthesized hyperbranched polyester and Cu-Ag alloy were characterized by different analytical techniques such as FT-IR, 1H-NMR, UV-vis spectra, X-ray diffraction (XRD), SEM, Energy Dispersive X-ray (EDX), Laser particle size measurement, TEM, etc. The XRD and EDX studies confirm the formation of Cu-Ag alloy. The Laser particle size measurement, SEM and TEM studies show that the Cu-Ag alloy is well-dispersed particles with average size of 120 nm. The thermal properties of the Cu-Ag alloy have been studied by thermogravimetric Analysis (TGA). The results showed that the measurement values are close to the theoretical ones.

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韩文松.用简便方法以超支化聚酯为模板合成Cu-Ag合金[J].稀有金属材料与工程,2018,47(5):1352~1358.[Wensong Han. A Convenient Approach for Preparation of Cu-Ag Alloy Particles by Using Hyperbranched Polymers as Templates[J]. Rare Metal Materials and Engineering,2018,47(5):1352~1358.]
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  • 收稿日期:2016-07-27
  • 最后修改日期:2017-03-13
  • 录用日期:2017-04-13
  • 在线发布日期: 2018-06-08
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