J. Phys. II France
Volume 4, Numéro 5, May 1994
|Page(s)||865 - 872|
J. Phys. II France 4 (1994) 865-872
Kinetics of gelation growth in a sol-gel transition by a computer-simulation modelY. Liu1, 2 and R. B. Pandey1, 3
1 The Program in Scientific Computing, University of Southern Mississippi, Hattiesburg, MS 39406, U.S.A.
2 Department of Computer Science and Statistics, University of Southern Mississippi, Hattiesburg, MS 39406, U.S.A.
3 Department of Physics and Astronomy, University of Southern Mississippi, Hattiesburg, MS 39406, U.S.A.
(Received 15 January 1994, accepted 31 January)
A computer simulation model is used to study the kinetics of gelation of a low concentration of bifunctional ( C2) and tetrafunctional ( C4) monomers on a simple cubic lattice. The mobilities of the monomers and the microgel particles are considered. Monomers react with their neighbors with a certain probability after hopping with a fixed number of steps. Growth of the concentration of saturated bonds, weight average degree polymerization, and the volume fraction of the gel are studied as a function of reaction time. We find that the critical gel time (i.e. the gel point) depends nonlinearly on the mobility steps of hopping.
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