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The effect of temperature on peroxide initiated crosslinking of polypropylene

✍ Scribed by I. Chodák; E. Zimányová

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
248 KB
Volume
20
Category
Article
ISSN
0014-3057

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✦ Synopsis

Crosslinking of polypropylene at 10-220 ~ was investigated. The process was initiated by radicals formed either by thermal or by u.v. decomposition of dicumyl peroxide. It was found that fragmentation of macroradicals is the most important reaction during thermal initiation and the crosslinking efficiency increases with decreasing temperature. For u.v. initiation, several chemical and physical factors are important; the efficiency is highest at 65 80'.

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Peroxide-initiated crosslinking of polyp
Peroxide-initiated crosslinking of polypropylene in the presence of p-benzoquinone
✍ I. Chodák; M. Lazár 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 335 KB 👁 2 views

Crosslinking of polypropylene was investigated when initiated by thermal decomposition of organic peroxides. p-Benzoquinone was found to be an effective coagent of crosslinking. The efficiency of benzoquinone is about 5 times higher than that of polyfunctional monomers. Almost complete crosslinking