首页> 外文期刊>Journal of Applied Polymer Science >Polymer-Metal Composite Particles: Metal Particles on Poly(St-co-MAA) Microspheres
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Polymer-Metal Composite Particles: Metal Particles on Poly(St-co-MAA) Microspheres

机译:聚合物金属复合颗粒:聚(St-co-MAA)微球上的金属颗粒

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摘要

Poly(styrene-co-methacrylic acid) P(St-co-MAA) microspheres with a monodisperse size distribution were prepared by emulsifier-free emulsion copolymerization of St and MAA. The effects of MAA content on the polymerization rate and the content of MAA in the copolymer were investigated by gravietrical and IR methods, respectively. The results of XPS measurement indicated the presence of a carboxyl functional group. By chemical metal deposition, nickel or palladium particles were formed and deposited on the surface of P(St-co-MAA) microspheres to form P(St-co-MAA)Ni or P(St-to-MAA)Pd composite particles. XRD measurement and TEM observation confirmed that nickel and palladium metal particles in a smass size (20-40 nm) were distributed on surface of the copolymer microspheres.
机译:通过无乳化剂的St和MAA的共聚反应制备了具有单分散粒径分布的聚(苯乙烯-甲基丙烯酸丙烯酸)P(St-co-MAA)微球。分别通过重力法和红外光谱法研究了MAA含量对聚合速率和共聚物中MAA含量的影响。 XPS测量的结果表明存在羧基官能团。通过化学金属沉积,形成镍或钯颗粒,并将其沉积在P(St-co-MAA)微球表面上,形成P(St-co-MAA)Ni或P(St-to-MAA)Pd复合颗粒。 XRD测量和TEM观察证实,烟团尺寸(20-40nm)的镍和钯金属颗粒分布在共聚物微球的表面上。

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