title: Glass transition and mixing thermodynamics of a binary eutectic system.
abstract: A quantitative evaluation of the contribution of mixing thermodynamics to glass transition is performed for a binary eutectic benzil and m-nitroaniline system. The microcalorimetric measurements of the enthalpy of mixing give small and positive values, typically ~200 J mol(-1) for the equimolar mixture. The composition dependence of the glass transition temperature, T(g), is found to show a large and negative deviation from the ideal mixing rule. The Gordon-Taylor and Couchman-Karasz models are subsequently applied to interpret the T(g) behavior, however, only a small fraction of the deviation is explained. The analyses of the experimental results manifest quantitatively the importance of the mixing thermodynamics in the glass transition in miscible systems.
authors.affiliation: State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China. Limin_Wang@ysu.edu.cn.
authors.forename: Wenkang
authors.initials: W
authors.lastname: Tu
authors.forename: Zeming
authors.initials: Z
authors.lastname: Chen
authors.forename: Yanqin
authors.initials: Y
authors.lastname: Gao
authors.forename: Zijing
authors.initials: Z
authors.lastname: Li
authors.forename: Yaqi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Riping
authors.initials: R
authors.lastname: Liu
authors.forename: Yongjun
authors.initials: Y
authors.lastname: Tian
authors.forename: Li-Min
authors.initials: LM
authors.lastname: Wang