- Tytuł:
- Positron Annihilation Studies of Styrene-N-X-Phenylmaleimides
- Autorzy:
-
Baranowski, A.
Dębowska, M.
Jerie, K.
Rudzińska-Girulska, J.
Pawełka, Z.
Sikorski, R. T. - Powiązania:
- https://bibliotekanauki.pl/articles/1933467.pdf
- Data publikacji:
- 1995-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
71.60.+z
78.70.Βj
81.20.Sh
82.30.Hk - Opis:
- Results of angular correlation of annihilation radiation and positron annihilation lifetime measurements are presented for five styrene copolymers: poly(co-styrene-phenylmaleimide) and its three derivatives with chlorine as well as for one with the OH group substituted in the benzene ring. It occurs that the chlorine substituted in three different positions in the benzene ring poly(co-styrene-o (or -m, -p)-chlorophenylmaleimide) inhibits the formation of the positronium to different extent. The greatest effect is observed in case of the chlorine atoms substituted in the benzene ring at ortho-position towards the nitrogen atom. In addition, electric dipole moments were measured for N-X-phenylmaleimide units, to check whether their magnitude influences the positron annihilation parameters. On the basis of the present results no correlation between the positron annihilation parameters and the electric dipole moments of the units was noticed.
- Źródło:
-
Acta Physica Polonica A; 1995, 88, 1; 51-57
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł