The modification of secondary high molecular weight guayule rubber with metachloroperoxybenzoic acid

The modification of secondary high molecular weight guayule rubber with metachloroperoxybenzoic acid

The epoxidation of secondary high molecular weight guayule rubber has been accomplished. The reaction is performed using metachloroperoxybenzoic acid as the epoxidation agent in various stoichiometric ratios including 5, 10, 20, and 50 mol %. The products were characterized by infrared spectroscopy,...

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Veröffentlicht in:Journal of applied polymer science 1993-02, Vol.47 (7), p.1255-1262
Hauptverfasser: Thames, S. F., Poole, P. W.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Chemical modifications
Chemical reactions and properties
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
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Zusammenfassung:The epoxidation of secondary high molecular weight guayule rubber has been accomplished. The reaction is performed using metachloroperoxybenzoic acid as the epoxidation agent in various stoichiometric ratios including 5, 10, 20, and 50 mol %. The products were characterized by infrared spectroscopy, 1H‐ and 13C‐nuclear magnetic resonance (NMR), differential scanning calorimetry, and elemental analysis. 1H‐NMR is used quantitatively to calculate epoxidation levels that are compared to stoichiometry. DSC results record a linear relationship between percent epoxidation and Tg. © 1993 John Wiley & Sons, Inc.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1993.070470713