Glass Transition Temperature of High Molecular Weight Polystyrene: Effect of Particle Size, Bulk to Micron to Nano

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High Molecular weight nano/micron sized polystyrene (Mv=1X106) was prepared by styrene and hydrogen peroxide. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) measurements indicated that the particles matched with that of the polymer single chain. The same chemical structure of both nano/micron and bulk polystyrene was confirmed by means of FTIR spectroscopy studies. Thermal analysis indicated that nano/micron sized particles exhibited a significantly higher glass transition temperature (Tg) than bulk particle.

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Journal: TechConnect Briefs
Volume: 1, Technical Proceedings of the 2006 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: May 7, 2006
Pages: 483 - 486
Industry sector: Advanced Materials & Manufacturing
Topics: Nanoparticle Synthesis & Applications
ISBN: 0-9767985-6-5