The Structural Studies of Oxirane Ring Opening Reaction in Epoxidized Natural Rubber (ENR-50) by SnCl₂.2H₂O and the Formation of ENR/TiN Complex Hybrid

Abstract:

Oxirane ring opening reaction of epoxidized natural rubber (ENR-50) is a promising method to produce hybrids or introduce reactive fillers into the polymers through the covalent bond. This paper reports the reaction between ENR-50 and SnCl₂.2H₂O under CO₂ environment. The complex formation is characterized via FTIR, ¹H, ¹³C and ¹¹⁹Sn NMR. ¹H NMR which displays deduction of methine proton integrals at δ 2.71 ppm implies the occurrence ring opening reaction. While ¹³C NMR reveals new peaks which corresponds to Sn-C bond. The ¹¹⁹Sn NMR proves four-coordinates tin in ENR/Sn complex hybrid.

• Periodical: Advanced Materials Research (Volume 626)
• Pages: 727-737
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.626.727
• Online since: December 2012
• Authors: Hamzah Rosniza, Abu Bakar Mohamad
• Keywords: 2D NMR, CO₂, ENR-50, SnCl₂.2H₂O, Triad Sequence

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