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has been cited by the following article:

• TITLE: Activation Volume of Secondary Relaxation

  AUTHORS: Soheil Sharifi

  KEYWORDS: Activation Volume, Secondary Relaxation, Glassy State, Pressure Effects

  JOURNAL NAME: Materials Sciences and Applications, Vol.2 No.6, June 24, 2011

  ABSTRACT: Glass forming materials are characterized by a complex relaxation pattern, which evolves over several time decades. Dielectric spectroscopy has proven particularly useful for studying such scenario as it is able to monitor the dielectric dynamics of a system over a range up to 16 time decades. In this work we study effect of thermodynamic history on activation volume of secondary relaxation inside the glassy forming systems, Poly[(phenyl glycidyl ether)-co-formaldehyde], (PPGE) and 1,18-bis (p methoxyphenyl) cyclohexane (BMPC), with two different type of secondary relaxation. Our results show that at bout systems, activation volume of secondary depends to the thermodynamic history.