Dynamic and Equilibrium Swelling of Biodegradable Starch-Based Superabsorbent Polymers

Abstract:

Article Preview

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 et al., "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

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.