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Journal of Polymers and the Environment

, Volume 27, Issue 1, pp 50–60 | Cite as

Effect of Glycerol on the Physical Properties of Carboxylated Styrene-Butadiene Rubber/Cassava Starch Blend Films

  • Kanokwan Chantawee
  • Sa-Ad RiyajanEmail author
Original Paper
  • 50 Downloads

Abstract

Many polymers have been used to develop biodegradable films but starch is an attractive material for this purpose because it is an abundant renewable and low cost material. In this study, the effect of glycerol (GE) as a plasticizer on the physical properties of carboxylated styrene-butadiene rubber/cassava starch blend films was investigated. The results show that the addition of GE reduced the brittleness of the films and promoted their flexibility. The films also exhibited higher water absorption ability, higher moisture contents, and better elongation at break with increasing concentrations of GE because the GE reduced the interaction strength between the polymer chains, leading to improved mobility. Furthermore, films containing GE easily hold water in their matrix because the active hydroxyl groups in the GE have a strong affinity with water molecules. This study demonstrated that a significant concentration of GE improved the films’ properties and these inexpensive biodegradable films have promising applications as alternative packaging materials.

Keywords

Biodegradation Starch Glycerol Latex Rubber Modification 

Notes

Acknowledgements

The authors gratefully acknowledge the financial support provided by Thammasat University Research Fund under the TU Research Scholar, Contract No. 2/50/2018, the Center of Scientific Equipment for Advanced Research, Thammasat University and the Center of Scientific Equipment, Faculty of Science and Technology, Thammasat University. This study was financially supported by The Thailand Research Fund/Prince of Songkla University/Thammasat University (RSA5780018) and Thammasat University. Moreover, the authors appreciate the assistance of the National Metal and Materials Technology Center for the use of their equipment.

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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Chemistry, Faculty of Science and TechnologyThammasat UniversityPathum ThaniThailand

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