Relative Reactivity of the Isocyanate Groups in Toluene-2,4-diisocyanate
โ Scribed by Simons, Donald M.; Arnold, Robert G.
- Book ID
- 120649811
- Publisher
- American Chemical Society
- Year
- 1956
- Tongue
- English
- Weight
- 258 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0002-7863
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๐ SIMILAR VOLUMES
A practical phosgenation procedure has been devised for the preparation of isocyanates labeled with 14C, Three such isocyanates : I-tolyl isocyanaie, 4-tolyl isocyanate, and 2,4-tolylene diisocyanate (TDI) were prepared. The 14C distribution in the latter was determined by scintillation counting of
Based on an expanded kinetic scheme for 32 subsequent and parallel reactions that yield linear polyurethane, a mathematical model was developed for a gradual polyaddition process involving toluene 2,4-diisocyanate and 1,4-butanediol. Unlike the earlier models, this one followed Flory's assumption an