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Inside Cover, Volume 127, Issue 6
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38670
Subject(s) - cover (algebra) , acrylic acid , emulsion polymerization , polymer , polymer science , polystyrene , porosity , materials science , polymerization , polymer chemistry , chemical engineering , composite material , copolymer , mechanical engineering , engineering
A superabsorbent hydrogel composed of waste polystyrene, starch, and acrylic acid is prepared through emulsion polymerization, as presented by Hanafi Ismail, Maryam Irani, and Zulkifli Ahmad on page 4195 . The hydrogel is characterized by SEM, FTIR spectroscopy, and TGA. The porosity of a hydrogel can affect its water absorbency and retention rate. Thus, one of the important properties to investigate is the hydrogel microstructure morphology. The image confirms that the prepared sample has a porous structure. These pores should provide regions for water penetration into the polymeric network and interaction sites for the hydrophilic groups of the polymer network and external stimuli.