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Viscoelastic properties at the sol‐gel transition
Author(s) -
Del Gado Emanuela,
de Arcangelis Lucilla,
Coniglio Antonio
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200106)171:1<79::aid-masy79>3.0.co;2-u
Subject(s) - viscoelasticity , percolation (cognitive psychology) , covalent bond , relaxation (psychology) , materials science , critical exponent , molecular dynamics , statistical physics , transition (genetics) , glass transition , chemical physics , thermodynamics , phase transition , polymer science , polymer , computational chemistry , composite material , chemistry , physics , organic chemistry , psychology , social psychology , biochemistry , neuroscience , gene
We present a study of molecular dynamics at the sol‐gel transition. Application of percolation and bond‐fluctuation dynamics provides critical exponents for viscoelastic properties in a strong covalent gel and shows a complex non‐exponential relaxation behaviour. The results are in good agreement with experimental findings and offer interesting pointers for discussions.