Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/5243
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Costa, A. M. A. da | - |
dc.contributor.author | Amado, A. M. | - |
dc.date.accessioned | 2008-09-01T15:06:24Z | - |
dc.date.available | 2008-09-01T15:06:24Z | - |
dc.date.issued | 2000 | en_US |
dc.identifier.citation | Polymer. 41:14 (2000) 5361-5365 | en_US |
dc.identifier.uri | https://hdl.handle.net/10316/5243 | - |
dc.description.abstract | In this study, the effects of introduction of lithium perchlorate into polyacrylamide hydrogels having constant amounts of acrylamide monomers and N,N'-methylene-bis-acrylamide crosslinker have been studied through the observed changes in the vibrational Raman spectra. The changes in the perchlorate anion's Raman modes show that in the polymeric matrix most of the lithium and perchlorate ions are separated by the polyacrylamide coils. The changes in the Raman modes of the polymeric chains show that the interactions of the two ionic species with the coils are unfavourable to the hydrogen-bond network of the hydrogel matrix. As the amount of lithium perchlorate in the hydrogel increases the role played by the intra and inter-molecular hydrogen bonds due either to the amide groups or the interstitial water decreases; the amide groups become more accessible to chemical transformations and the hydrogel flexibility increases. | en_US |
dc.description.uri | http://www.sciencedirect.com/science/article/B6TXW-3YWWYVS-R/1/9d19af8a927c259ac2d37b5ceca33862 | en_US |
dc.format.mimetype | aplication/PDF | en |
dc.language.iso | eng | eng |
dc.rights | openAccess | eng |
dc.subject | Polyacrylamide composites | en_US |
dc.subject | Polymer ionic association | en_US |
dc.subject | Raman spectroscopy | en_US |
dc.title | Molecular interactions in polyacrylamide/lithium perchlorate hydrogel composites | en_US |
dc.type | article | en_US |
dc.identifier.doi | 10.1016/S0032-3861(99)00732-6 | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | Com Texto completo | - |
item.languageiso639-1 | en | - |
crisitem.author.orcid | 0000-0001-8554-7192 | - |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
filed02bb0ec0d474c688b96b9cb9cf838fa.pdf | 139.72 kB | Adobe PDF | View/Open |
SCOPUSTM
Citations
10
checked on Apr 22, 2024
WEB OF SCIENCETM
Citations
8
checked on Apr 2, 2024
Page view(s) 50
441
checked on Apr 23, 2024
Download(s)
270
checked on Apr 23, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.