白金/聚苯乙烯核殼型奈米粒子之合成與性質研究

Synthesis and Properties of Platinum/ Polystyrene Core-Shell Nanoparticles

周菁慧(Chin-Hui Chou)

指導教授 ： 芮祥鵬 ； 王立義

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2007年)

摘要

本研究中，我們設計一有機介面連結分子，該分子包含一端可與Pt粒子進行化學吸附的SH基團；另一端可作為ATRP聚合反應之起始劑的alkyl bromide及連結兩官能基的alkyl spacer。再將前述的介面連結分子吸附及自組裝於Pt粒子表面上，藉以將白金粒子分散於有機溶劑中，如THF、chloroform等。白金粒子之合成是以NaBH4作為還原劑，將H2PtCl6．xH2O還原成白金粒子。然後，利用ATRP方法進行surface-initiated polymerization，將polystyrene成長於奈米粒子表面，隨後再以SDS(sodium dodecyl sulfate)為界面活性劑，將奈米粒子分散在水中。最後以NMR、IR、TEM、XRD、DLS等方式來探討此白金奈米粒子的性質。

關鍵字

白金奈米粒子 ； 聚苯乙烯

並列摘要

In this research, we design a series of organic interfaces and link molecular, SH base group that this molecular includes one end and can absorb chemistry with platinum nanoparticles; another end can as initial alkyl bromide of ATRP of polyreaction, link two sense alkyl spacer of base. The molecule absorbs and assembles on the surface in Pt particle, make use of it in order to disperse the platinum nanoparticlse in the organic solvent, for instance toluene, THF, chloroform, etc.. It is to regard NaBH4 as the reducing agent, reduce H2PtCl6•xH2O into a platinum particle that platinum particle is synthetic. And then disperse the platinum particle in the organic solvent with this molecule. Then utilize ATRP method carry on surface-initiated polymerization to polymerize polystyrene on surface of platinum nanoparticles. After that regard SDS (sodium dodecyl sulfate) as the surfactant to disperse the platinum nanoparticlse in the water. Finally, the Pt particle were characterized by NMR, IR, TEM, XRD and DLS.

並列關鍵字

Pt nanoparticles ； polystyrene

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