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“Green synthesis” and characterization of a maleated epoxidized natural rubber latex

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Abstract

The objective of this present work was to prepare the epoxidized natural rubber (ENR)-g-maleic anhydride (MA) (ENR-g-MA) polymer, from ENR latex using K2S2O8 as an initiator. The chemical structure of the ENR-g-MA was confirmed by FTIR. The evidence for formation of a graft copolymer was found at 1,790 cm−1 owing to the chemical reaction between the ENR and the MA carbon atom. With an increase in the MA content, the particle size and zeta potential of the maleated ENR particle increased due to the change in the chemical composition on the surface of the ENR particles. The swelling ratio decreased with an increase of the MA content due to both the crosslinking and the hydrophilic group from the grafting between the ENR and MA. However, the percentage grafting decreased with an increase of the MA content. This was due to the many side reactions such as chain scission and chain transfer reactions.

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Acknowledgments

The authors gratefully acknowledge the full support of the this work was support by the higher education research promotion and National Research University project of Thailand, Office of the Higher Education Commission (SCI570421S) and Prince of Songkla University for the use of laboratory space and The Thailand Research Fund/Commission on Higher Education for financial support (RSA5780018).

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Correspondence to Sa-Ad Riyajan.

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Riyapan, D., Riyajan, SA. & Kowalczyk, A. “Green synthesis” and characterization of a maleated epoxidized natural rubber latex. Polym. Bull. 72, 671–691 (2015). https://doi.org/10.1007/s00289-014-1298-8

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  • DOI: https://doi.org/10.1007/s00289-014-1298-8

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