Thermal behavior and surface morphology studies on polystyrene grafted sago starch

Citation

Janarthanan, Pushpamalar and Wan Yunus, Wan Md. Zin and Ahmad, Mansor (2003) Thermal behavior and surface morphology studies on polystyrene grafted sago starch. Journal of Applied Polymer Science, 90 (8). pp. 2053-2058. ISSN 0021-8995; eISSN: 1097-4628

Abstract

Polystyrene grafting onto sago starch was carried out by using ceric ammonium nitrate as a redox initiator. The grafted copolymers were characterized by FTIR, thermogravimetry (TGA), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). FTIR spectra analysis of the grafted chain and commercial polystyrene was identical, indicating that styrene was successfully grafted onto sago starch. TGA thermograms and analysis of DSC curves showed that the thermal stability of starch increases as a result of grafting. SEM micrographs showed the deformed prolate ellipsoidal shape of sago starch particles and this shape disappeared in polystyrene grafted sago starch being replaced with a spongy surface with pores.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science
DOI Number:	https://doi.org/10.1002/app.12798
Publisher:	Wiley
Keywords:	Graft copolymers; Biodegradable; Radical polymerization; Sago starch; Polystyrene
Depositing User:	Ms. Zaimah Saiful Yazan
Date Deposited:	12 Mar 2025 07:08
Last Modified:	12 Mar 2025 07:08
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1002/app.12798
URI:	http://psasir.upm.edu.my/id/eprint/111864
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