Critical property and universality in the generalized Smoluchovski coagulation equation
- 1 May 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 41 (13) , 9424-9429
- https://doi.org/10.1103/physrevb.41.9424
Abstract
The kinetics of gelation has been studied via the generalized Smoluchovski coagulation equation. For the product coagulation kernel we derive criteria for the occurrence of gelation and obtain critical exponents in the pregelation and postgelation stage in terms of the model parameters. We also discuss the temporal approach of a cluster size distribution to its asymptotic scaling form. For homogeneous kernels we find values for the scaling exponents w and z in terms of the scaling exponent τ and the kernel homogeneity λ. It is shown that there exists a general scaling relation, valid for all n-polymer coagulation processes with n≥2, whereas the critical exponents vary with different n.Keywords
This publication has 8 references indexed in Scilit:
- Long-time behavior of the cluster size distribution in joint coagulation processesPhysical Review B, 1989
- Generalized Smoluchovski equation with gelationPhysical Review B, 1989
- Moment analysis of the cluster-size-distribution approach to scaling during coagulationPhysical Review A, 1987
- Cluster size distribution in irreversible aggregation at large timesJournal of Physics A: General Physics, 1985
- Large-time behavior of the Smoluchowski equations of coagulationPhysical Review A, 1984
- Kinetics of gelation and universalityJournal of Physics A: General Physics, 1983
- Coagulation equations with gelationJournal of Statistical Physics, 1983
- Critical kinetics near gelationJournal of Physics A: General Physics, 1982