Summary
Crosslinking of polyurethanes by a reaction of isocyanate groups with urethane groups leading to trifunctional allophanate branch points is treated statistically using the theory of branching processes. The occurrence of gelation in the diol — diisocyanate system and its dependence on the excess of isocyanate groups and the intensity of allophanate formation is discussed.
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Dušek, K., Ilavský, M. & Matějka, L. Statistical treatment of allophanate crosslinking in the formation of polyurethane networks. Polymer Bulletin 12, 33–40 (1984). https://doi.org/10.1007/BF00258269
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DOI: https://doi.org/10.1007/BF00258269