Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/95589| Author(s): | Maria do Pilar Gonçalves J.M.P.Q. Delgado R. O. Nasser M. Vázquez da Silva Cristina Andrade |
| Title: | Dynamic and equilibrium swelling of biodegradable starch-based superabsorbent polymers |
| Issue Date: | 2008 |
| 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 |
| Subject: | Outras ciências da engenharia e tecnologias Other engineering and technologies |
| Scientific areas: | Ciências da engenharia e tecnologias::Outras ciências da engenharia e tecnologias Engineering and technology::Other engineering and technologies |
| DOI: | 10.4028/www.scientific.net/DDF.273-276.126 |
| URI: | https://hdl.handle.net/10216/95589 |
| Document Type: | Artigo em Revista Científica Internacional |
| Rights: | restrictedAccess |
| Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 94409.pdf Restricted Access | 1.79 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.