Paper Title:
Dynamic and Equilibrium Swelling of Biodegradable Starch-Based Superabsorbent Polymers
  Abstract

A series of biodegradable superabsorbent polymers (SAP’s) based on starch grafted with acrylic acid (AA) and crosslinked with N,N’-methylenebisacrylamide (MBIS) were obtained. The parameters that define SAP’s properties, such as starch type, amount of initiator, acrylic acid and crosslinker concentrations, and degree of neutralization were varied. The dynamic swelling was interpreted in terms of both a simple power of time equation and a more detailed model based on a coupled diffusion–relaxation mechanism. The diffusivity coefficients calculated from diffusion–relaxation model were compared with the microimages obtained by optical microscopic.

  Info
Periodical
Defect and Diffusion Forum (Volumes 273-276)
Edited by
Andreas Öchsner and Graeme E. Murch
Pages
126-131
DOI
10.4028/www.scientific.net/DDF.273-276.126
Citation
R.O. Nasser, M. Vázquez da Silva, J. M.P. Delgado, M. P. Gonçalves, C.T. Andrade, "Dynamic and Equilibrium Swelling of Biodegradable Starch-Based Superabsorbent Polymers", Defect and Diffusion Forum, Vols. 273-276, pp. 126-131, 2008
Online since
February 2008
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Price
$32.00
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