以超支化聚酯为模板合成Ag-Cu合金粒子  

Synthesis of Ag-Cu Alloy Particles Using Hyperbranched Polyester as a Template

作　　者：韩文松[1] 

机构地区：[1]陕西理工学院,陕西汉中723003

出　　处：《稀有金属材料与工程》2015年第9期2280-2284,共5页Rare Metal Materials and Engineering

基　　金：2013年校级人才启动项目(SLGQD13(2)-19);陕西省自然科学研究计划(2013JK0681)

摘　　要：首先以季戊四醇为"核"、2,2-二羟甲基丙酸为支化单体通过逐步聚合的方法合成了第3代超支化聚酯。再以超支化聚酯为模板,通过还原技术合成了Ag-Cu合金粒子。对合成的超支化聚酯及Ag-Cu合金粒子用红外光谱、紫外光谱、X射线衍射仪、激光粒度仪、扫描电镜和热分析进行了表征。结果表明,在Ag-Cu合金粒子的表面有超支化聚酯存在。Ag-Cu合金粒子在210和450 nm处有较强紫外吸收峰。Ag-Cu合金粒子的X射线衍射峰与标准卡片基本一致。大部分Ag-Cu合金粒子的粒径在1.2μm左右。Ag-Cu合金粒子具有较好的热稳定性。The third-generation hyperbranched polyester（HBPE-3） was synthesized with pentaerythrite as core molecule and 2, 2-dimethylol propionic acid as AB2 monomer using step by step polymerization process at first. Then the Ag-Cu alloy particles were synthesized in HBPE-3 by a reductive technique. The synthesized hyperbranched polyester and Ag-Cu alloy particles were characterized by Fourier transform infrared spectroscopy（FT-IR）, UV-visible absorption spectra（UV-vis）, X-ray diffraction, laser light scattering, scanning electron microscopy（SEM） and thermogravimetric（TG）. The results show that there exists HBPE-3 on the Ag-Cu alloy particles surface. The Ag-Cu alloy particles have strong absorption peaks at around 210 and 450 nm. The XRD patterns of Ag-Cu alloy particles are in agreement with the standard cards. Most of particle sizes of Ag-Cu alloy particles are around 1.2 μm. The Ag-Cu alloy particles have good thermal stability.

关 键 词：超支化聚酯 模板 合成 Ag-Cu合金粒子 

分 类 号：TG146.32[一般工业技术—材料科学与工程]