Positron study of the structure of nonadecane-tricosane mixed solid

• Autorzy: Zgardzińska B. , Goworek T.
• Języki publikacji: EN

Abstrakty

EN

Positron annihilation lifetime and intensity were measured as a function of temperature for a binary mixture of two normal alkanes. The rotator phase is preceded by the range of about 7 K, in which one observes instability of spectrum parameters. In that range the mixed solid, being initially introduced into rotator phase, transforms to a rigid one in the time scale of several hours.

Słowa kluczowe

EN

positron annihilation; n-alkanes; binary mixture

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2010
• Tom: Vol. 55, No. 1
• Strony: 47--49
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Zgardzińska B.

autor

Goworek T.

• Institute of Physics, Maria Curie-Skłodowska University, 1 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland, Tel.: [phone], Fax: [phone],

Bibliografia

• 1. Goworek T, Pietrow M, Zaleski R, Zgardzińska B (2009) Positronium in high temperature phases of long-chain even n-alkanes. Chem Phys 355:123–129
• 2. Hirade T, Maurer FHJ, Eldrup M (2000) Positroniumformation at low temperatures: the role of trapped electrons. Radiat Phys Chem 58:465–471
• 3. Kansy J (1996) Microcomputer program for analysis of positron annihilation lifetime spectra. Nucl Instrum Methods Phys Res A 373:235–244
• 4. Maroncelli M, Qi SP, Strauss HL, Snyder RG (1982) Nonplanar conformers and the phase behavior of solid n-alkanes. J Am Chem Soc 104:6237–6247
• 5. Maroncelli M, Strauss HL, Snyder RG (1985) Structure of the n-alkane binary solid n-C19H40/n-C21H44 by infrared spectroscopy and calorimetry. J Phys Chem 89:5260–5267
• 6. Zgardzińska B, Wawryszczuk J, Goworek T (2009) Positronium in the n-alkane binary mixture: nonadecane- -heneicosane. Chem Phys Lett 470:72–74.