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Changes in physical properties and molecular structure of polystyrene nanospheres exposed with daily solar flux

Wibawa, Pratama Jujur and Agam, Mohd. Arif and Nur, Hadi and Saim, Hashim Changes in physical properties and molecular structure of polystyrene nanospheres exposed with daily solar flux. 2010 International Conference on Enabling Science and Nanotechnology (ESciNano).

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Abstract

The effects of physical properties and molecular structure of 200 nm polystyrene nanospheres (PSN) coated on silicon wafer exposed with daily solar flux were explored by field emission scanning electron microscope (FE-SEM) and attenuated total reflectance-Fourier transform infrared (ATR-FT-IR) spectrometer. It is revealed that the particles shape of PSN changed from spheric to eight-shaped after solar radiation. Reduction of the size as much as 29.5% after 5 minutes exposure was also observed in PSN particles. Changes in the molecular structure of the PSN particles after solar radiation were observed where some of the phenyl moieties of polystyrene broke down to facilitate carbon-carbon cross linkage bonds. These results demonstrated that the shrinkage of PSN particles is caused by the change of the molecular structure of polystyrene.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Applied Science and Technology > Department of Humanities
Depositing User: Norfauzan Md Sarwin
Date Deposited: 07 Nov 2012 04:02
Last Modified: 07 Nov 2012 04:02
URI: http://eprints.uthm.edu.my/id/eprint/3150
Statistic Details: View Download Statistic

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