Super-absorbant polymerss based on poly(acrylic acid) networks are formed by radical copolymerization of the monomer with small amounts of certain cross-linking agents. The structure of the polymer network has a major bearing on the performance of the product. It can be influenced during the polymerization by severla parametes, among which the functiionality and the reactivity of cross-linking agents are the most important. The various factorss involved are discussed.
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