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N,N′-Pentamethylenethiuram disulfide- and N,N′-pentamethylenethiuram hexasulfide-accelerated sulfur vulcanization. I. Interaction of curatives in the absence of rubber

✍ Scribed by C. P. Reyneke-Barnard; M. H. S. Gradwell; W. J. McGill

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
210 KB
Volume
77
Category
Article
ISSN
0021-8995

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N,N′-Pentamethylenethiuram disulfide- an
N,N′-Pentamethylenethiuram disulfide- and N,N′-pentamethylenethiuram hexasulfide-accelerated sulfur vulcanization. II. Relative stability of N,N′-pentamethylenethiuram disulfide and tetramethylthiuram disulfide with respect to amine formation
✍ C. P. Reyneke-Barnard; M. H. S. Gradwell; W. J. Mcgill 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 126 KB

The thermal stability of N,NЈ-dipentamethylenethiuram disulfide (CPTD) and tetramethylthiuram disulfide (TMTD) with respect to thiourea formation was compared. CPTD is stable at 120°C but decomposes to N,NЈ-dipentamethylenethiourea (CPTU) at vulcanization temperatures (140°C), while TMTD is stable t