Can I read The Length of Cooperativity at the Glass Transition in Poly(vinyl Acetate) from the Modeling of the Structural Relaxation Process on EtoBox?
The Length of Cooperativity at the Glass Transition in Poly(vinyl Acetate) from the Modeling of the Structural Relaxation Process by J.L. Gómez Ribelles; A. Vidaurre Garayo; J.M.G. Cowie; R. Ferguson; S. Harris; I.J. McEwen is a Materials Science article available to read on EtoBox.
What is The Length of Cooperativity at the Glass Transition in Poly(vinyl Acetate) from the Modeling of the Structural Relaxation Process about?
The structural relaxation process of poly(viny1 acetate) has been studied by differential scanning calorimetry. The sample was subjected to different thermal treatments including an isothermal annealing at temperature T, for a time t,. The heat capacity ~~(2") was measured during a heating scan. Thus, the experimental results consist of a series of c,(T) curves determined after thermal histories with different values of T, and la. The experimental results were compared with the prediction of a multiparameter phenomenological model described in references [ 15,161. This model follows the evolution of the configurational entropy of the sample during the whole thermal history. The parameters of the model were calculated by simultaneous fits to five c&T) curves, corresponding to different thermal histories (the parameters of the model have the character of material parameters, independent of the thermal history). This allows the determination of the temperature dependence of the relaxation times and the /3 parameter of the Kohlrausch-Williams-Watts equation. From these parameters and an estimate of the internal rotational barrier obtained by molecular mechanics calculations, the size o
Who reads The Length of Cooperativity at the Glass Transition in Poly(vinyl Acetate) from the Modeling of the Structural Relaxation Process?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- J.L. Gómez Ribelles; A. Vidaurre Garayo; J.M.G. Cowie; R. Ferguson; S. Harris; I.J. McEwen
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0032-3861)
- Published
- 1999
- Language
- EN
- Field
- Materials Science (Physical Sciences)