Universiti Teknologi Malaysia Institutional Repository

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

Umar, Abdulganiyu and Abu Naim, Ahmedy and Sanagi, Mohd. Marsin (2014) Synthesis and characterization of chitosan grafted with polystyrene using ammonium persulfate initiator. Materials Letters, 124 . pp. 12-14. ISSN 0167-577X

Full text not available from this repository.

Official URL: https://doi.org/10.1016/j.matlet.2014.03.007

Abstract

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.

Item Type:Article
Uncontrolled Keywords:polystyrene; ammonium persulfate, free-radical polymerization
Subjects:Q Science
Divisions:Science
ID Code:62767
Deposited By: Fazli Masari
Deposited On:14 Jun 2017 08:28
Last Modified:14 Jun 2017 08:28

Repository Staff Only: item control page