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Polymer-Plastics Technology and Engineering Volume 50, 2011 - Issue 14
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Original Articles

Polymer Hydrogels: A Review

Waham Ashaier Laftah Faculty of Chemical and Natural Resources Engineering, Department of Polymer Engineering, Universiti Technologi, MalaysiaCorrespondence[email protected]
,
Shahrir Hashim Faculty of Chemical and Natural Resources Engineering, Department of Polymer Engineering, Universiti Technologi, Malaysia
&
Akos N. Ibrahim Faculty of Chemical and Natural Resources Engineering, Department of Polymer Engineering, Universiti Technologi, Malaysia
Pages 1475-1486 | Published online: 30 Sep 2011
 
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Abstract

This review encompasses definitions, classification, main properties, and application of polymer hydrogels. Raw materials and preparation techniques of polymer hydrogels were described. The factors that affect absorption capacity and swelling properties of polymer hydrogels were reviewed. PHG materials are defined as a viscoelastic network structure, swellable and not soluble in water with high absorbent capacity, which may reach 1000 g/g of their dried weight to be termed “superabsorbent polymer hydrogels”. PHGs have the ability to release absorbed fluids under certain circumstances.

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