Metathetic Selective Degradation of Polyisoprene: Low-Molecular-Weight Telechelic Oligomer Obtained from Both Synthetic and Natural Rubber
✍ Scribed by Shailendra Singh Solanky; Irène Campistron; Albert Laguerre; Jean-François Pilard
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 99 KB
- Volume
- 206
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
Summary: Degradation studies of cis‐1,4‐polyisoprene were carried out using first and second generation Grubbs catalysts to achieve end‐functionalized acetoxy oligomers in both an organic solvent and a latex phase at room temperature. Well‐defined acetoxy telechelic polyisoprene structures were obtained in a selective manner with a range of $\overline M _{\rm n}$ from 10 000 to 30 000, with a polydispersity index of around 2.5.
Structure produced by the metathetic depolymerization of hydroxy telechelic cis‐1,4‐polyisoprene.
magnified imageStructure produced by the metathetic depolymerization of hydroxy telechelic cis‐1,4‐polyisoprene.