Positron Annihilation in Chloropolystyrenes

• Authors: A. Baranowski , M. Dębowska , K. Jerie , G. Mirkiewicz , J. Rudzińska-Girulska , R. Sikorski
• Languages of publication: EN

Abstracts

EN

Results of angular correlation of annihilation radiation and positron annihilation lifetime measurements are presented for atactic polystyrene and chloropolystyrenes. The inhibition of positronium formation follows the chlorine introduction as the decrease in intensities of the narrow component in angular correlation of annihilation radiation curves and of the longest-lived component in positron annihilation lifetime spectra prove. In general, the chlorine "activity" towards positrons seems to depend on its position in the polymer structure. The annihilation rate distribution as well as the radius and volume distributions of free-volume sites where positronium is assumed to be formed obtained with the use of CONTIN program for the raw sample in the 2nd series are given additionally.

Keywords

EN

71.60.+z; 78.70.Bj; 81.20.Sh; 82.30.Hk

Discipline

• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)
• 71.60.+z: Positron states(for positron annihilation, see 78.70.Bj)
• 82.30.Hk: Chemical exchanges (substitution, atom transfer, abstraction, disproportionation, and group exchange)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1993
• Volume: 83
• Issue: 3
• Pages: 239-249

Dates

published

1993-03

Contributors

author

A. Baranowski

• Institute of Experimental Physics, Wrocław University, pl. Maxa Borna 9, 50-204 Wrocław, Poland

author

M. Dębowska

• Institute of Experimental Physics, Wrocław University, pl. Maxa Borna 9, 50-204 Wrocław, Poland

author

K. Jerie

• Institute of Experimental Physics, Wrocław University, pl. Maxa Borna 9, 50-204 Wrocław, Poland

author

G. Mirkiewicz

• Institute of Organic and Polymer Technology, Technical University of Wrocław, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

J. Rudzińska-Girulska

• Institute of Experimental Physics, Wrocław University, pl. Maxa Borna 9, 50-204 Wrocław, Poland

author

R. Sikorski

• Institute of Organic and Polymer Technology, Technical University of Wrocław, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Identifiers

DOI

10.12693/APhysPolA.83.239