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Effect of Glycerol and Reactive Compatibilizers on Poly(butylene succinate)/Starch Blends

Supakij Suttiruengwong1,*, Kanchana Sotho1, Manus Seadan2
1 Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom, 73000, Thailand
2 Department of Physics, Faculty of Science, Silpakorn University, Nakhon Pathom, 73000, Thailand
* Corresponding Author:

Journal of Renewable Materials 2014, 2(1), 85-92.

Received 15 December 2013; Accepted 17 February 2014;


A one-step process in an internal mixer was used to prepare Poly(butylene succinate) (PBS)/high-loading modifi ed tapioca starch (30–40 wt%) blends with low glycerol content (10–20 wt% of starch) as a plasticizer. To promote a good compatibility, two reactive agents, maleic anhydride (MA)/peroxide and methylene diphenyl diisocyanate (MDI), were selected and compared. The mechanical properties, morphology, and Molau test of the blends were investigated. The compatibility of PBS/starch blends was improved by both reactive agents at the suitable plasticizer loading (glycerol 10 wt% of starch). It was demonstrated that increasing mechanical properties resulted in good adhesion of PBS/starch interface and small evenly dispersed starch particles. MA/ peroxide of 0.20/0.01 phr/phr and MDI of 0.2 phr were suffi cient to improve the mechanical properties of PBS/starch (60:40 and 70:30) blends at 10 wt% glycerol (of starch). The results from the Molau test confi rmed the formation of graft-copolymer at the interface when compatibilizers were added.


Poly(butylene succinate), tapioca starch, compatibilizer, reactive blend

Cite This Article

Suttiruengwong, S., Sotho, K., Seadan, M. (2014). Effect of Glycerol and Reactive Compatibilizers on Poly(butylene succinate)/Starch Blends. Journal of Renewable Materials, 2(1), 85–92.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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