Synthesis and characterization of chitosan grafted with polystyrene using ammonium persulfate initiator

Graft copolymerization of styrene from chitosan was prepared under various conditions using ammonium persulfate (APS) initiator. The grafting was found to be best at 1:3 chitosan:styrene weight ratio, 0.4 g APS and temperature 60 degrees C. The washed products were characterized by spectroscopic and...

وصف كامل

محفوظ في:
التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Umar, Abdulganiyu, Abu Naim, Ahmedy, Sanagi, Mohd. Marsin
التنسيق: مقال
منشور في: Elsevier 2014
الموضوعات:
الوصول للمادة أونلاين:http://eprints.utm.my/id/eprint/62767/
https://doi.org/10.1016/j.matlet.2014.03.007
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الوصف
الملخص:Graft copolymerization of styrene from chitosan was prepared under various conditions using ammonium persulfate (APS) initiator. The grafting was found to be best at 1:3 chitosan:styrene weight ratio, 0.4 g APS and temperature 60 degrees C. The washed products were characterized by spectroscopic and thermal methods. FT-IR analysis indicate the presence of polystyrene peaks, DSC analysis showed the improvement in Tg of the polystyrene. After acid hydrolysis, the copolymer was analyzed using gel permeation chromatography (GPC), and the result revealed the isolated polystyrene having M-w and M-n, as 95,249 and 30,755 respectively, with polydispersity index, 2.92.