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Tailoring the chemi...
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Enarsson, Lars-ErikKTH,Fiber- och polymerteknologi
(författare)
Tailoring the chemistry of polyelectrolytes to control their adsorption on cellulosic surfaces
- Artikel/kapitelEngelska2009
Förlag, utgivningsår, omfång ...
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Elsevier BV,2009
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:kth-14146
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-14146URI
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https://doi.org/10.1016/j.colsurfa.2009.03.017DOI
Kompletterande språkuppgifter
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Språk:engelska
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Sammanfattning på:engelska
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Klassifikation
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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QC 20100720
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The adsorption of two types of cationic polyacrylamides in the presence of a background electrolyte was studied on substrates including silicon oxide, kraft pulp fibres and thin films of regenerated cellulose. One of the polyelectrolytes was a conventional cationic polyacrylamide (MeCPAM) and the other was a benzyl-containing derivative of cationic polyacrylamide (BzCPAM). It was found that the aromatic substituents of BzCPAM strongly enhanced the adsorption on substrates of hydrophobically modified silicon oxide when a background electrolyte was present. A similar effect was also seen in the case of BzCPAM adsorption on unbleached pulp fibres, but in this case MeCPAM also exhibited a strong adsorption at high background electrolyte concentrations. On bleached pulp fibres, BzCPAM maintained a high adsorption up to a concentration of 100 mM NaCl whereas MeCPAM adsorption showed a significant decrease at this salt concentration. On model cellulose films, the adsorption of BzCPAM was similar to that of MeCPAM and the non-ionic interactions with cellulose appeared weak, since there was no adsorption of either polyelectrolyte in 300 mM NaCl.
Ämnesord och genrebeteckningar
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Cationic polyacrylamide
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Hydrophobic modification
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Polyelectrolyte adsorption
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Non-ionic interactions
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Silicon oxide
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Pulp fibres
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Model cellulose surface
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TECHNOLOGY
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TEKNIKVETENSKAP
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Wågberg, LarsKTH,Fiber- och polymerteknologi(Swepub:kth)u14jbte3
(författare)
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Carlén, JoakimEka Chemicals AB
(författare)
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Ottosson, NiklasVTC Elastoteknik AB
(författare)
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KTHFiber- och polymerteknologi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Colloids and Surfaces A: Elsevier BV340:1-3, s. 135-1420927-77571873-4359
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