2H??NMR study of the glass transition in supercooled ortho??terphenyl

T Dries, F Fujara, M Kiebel, E Rössler…

Index: Dries, Th.; Fujara, F.; Kiebel, M.; Roessler, E.; Sillescu, H. Journal of Chemical Physics, 1988 , vol. 88, # 4 p. 2139 - 2147

Full Text: HTML

Citation Number: 118

Abstract

The glass forming molecular liquid ortho??terphenyl has been investigated by 2H??NMR techniques providing spin??relaxation times (T 1, T 2), and spin??alignment data which yield information on the time scale and geometry of ultra??slow molecular reorientation. The main results are as follows: The primary glass transition (α process) is characterized by rotational molecular jumps with a jump size distribution weighted in favor of large jump angles, and ...