Thermal behavior and surface morphology studies on polystyrene grafted sago starch

被引：39
作者：
Janarthanan, P [1 ]
Yunus, WMZW
Bin Ahmad, M
机构：
[1] Monash Univ, Sch Sci & Engn, Bandar Sunway 46150, Selangor, Malaysia
[2] Univ Putra Malaysia, Dept Chem, Serdang 43400, Selangor, Malaysia
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2003年 / 90卷 / 08期
关键词：
graft copolymers; biodegradable; radical polymerization; sago starch; polystyrene;
D O I：
10.1002/app.12798
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
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. (C) 2003 Wiley Periodicals, Inc.
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页码：2053 / 2058
页数：6
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