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The preparation and properties of dextrin‐graft‐acrylic acid/montmorillonite superabsorbent nanocomposite
Author(s) -
Ding Xin,
Li Li,
Liu Pingsheng,
Zhang Jun,
Zhou Ninglin,
Lu Shan,
Wei Shaohua,
Shen Jian
Publication year - 2009
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.20643
Subject(s) - ammonium persulfate , montmorillonite , acrylic acid , materials science , nanocomposite , superabsorbent polymer , fourier transform infrared spectroscopy , intercalation (chemistry) , chemical engineering , distilled water , polymerization , polymer chemistry , nuclear chemistry , composite material , monomer , polymer , organic chemistry , chemistry , chromatography , engineering
A novel superabsorbent nanocomposite was synthesized through intercalation polymerization of partially neutralized acrylic acid, gelatinized dextrin, and an organic‐montmorillonite powder using N,N ‐methylenebisacrylamide as a crosslinker, Span‐60 as a dispersant, and ammonium persulfate together with sodiumsulfite as a type of mixed redox initiator. Effects of the amount of them on water absorbency of the superabsorbent were investigated. The structure and the morphology of the nanocomposite were characterized by Fourier transform infrared spectroscopy, X‐ray diffraction, and transmission electron microscopy analysis. The blood compatibility of the composite was primarily measured. The results show that the acrylic acid monomer was successfully intercalated into the organic‐montmorillonite layers and bonded with them. The superabsorbent nanocomposite synthesized under optimal conditions with an organic‐montmorillonite powder content of 5 wt% exhibit an absorption of 725.3 g/g in distilled water and favorable blood compatibility. POLYM. COMPOS., 2009. © 2008 Society of Plastics Engineers