How does cross-linking affect the thermal stability of polyisoprene?

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Polymer Degradation and Stability, ISSN: 0141-3910, Vol: 69, Issue: 3, Page: 287-296

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Yao, Qiang; Wilkie, Charles A.
Elsevier BV; e-Publications@Marquette
Physics and Astronomy; Engineering; Materials Science; Polyisoprene; Cross-linking; Thermogravimetric analysis; Char; Lithiation; Chemistry
article description
Polyisoprene can be cross-linked by an initial lithiation followed by reaction with both monochloro compounds and dichloro compounds. The monochloro compounds effect crosslinking through a lithium-chlorine exchange route while the use of dichloro compounds links the PIP chains with the spacer between the two chlorine atoms. A significant amount of char is produced from compounds which have been cross-linked with aromatic dihalides while aliphatic dihalides do not produce significant char.