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IJPAP Vol.44(01) [January 2006] >

Title: Study of ion induced modification in Makrofol-KG polycarbonate by positron annihilation lifetime measurements
Authors: Kumar, Rajesh
Prasad, Rajendra
Keywords: Makrofol-KG polycarbonate
Si8+ ion irradiation
Positron lifetime
Free volume
Ion beam modification
Issue Date: Jan-2006
Publisher: CSIR
IPC CodeG08G64/00
Abstract: Latent ion tracks produced in the polymers due to the damage produced by the passage of swift heavy ions contain amorphous material with highest degree of disorder, changing the free volume properties, which have strong correlation with the macroscopic properties of the material. Positron Annihilation Lifetime Spectroscopy (PALS) is a non-destructive and non-interfering probe, having high detection efficiency for free volume hole properties and provides direct information about the dimension, content and hole size distribution of free volume in polymers. The effect of irradiation of Si8+ 100 MeV ions on Makrofol-KG polycarbonate by PALS is reported here. From the ortho positronium (o-Ps) lifetime, mean free volume, radius and average free volume have been obtained.
Page(s): 9-12
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.44(01) [January 2006]

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