Summary
Expressions for the number density of junctions μ and the cycle rank ξ of model networks having a mixture of trifunctional and tetrafunctional junctions are obtained by simple topological arguments. The results are consistent with those derived by making use of an average junction functionality.
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Queslel, J.P., Mark, J.E. Characterization of model networks containing both trifunctional and tetrafunctional junctions. Polymer Bulletin 12, 311–314 (1984). https://doi.org/10.1007/BF00263144
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DOI: https://doi.org/10.1007/BF00263144