Sökning: onr:"swepub:oai:DiVA.org:ri-6808" >
Association of anio...
Association of anionic surfactant and physisorbed branched brush layers probed by neutron and optical reflectometry
-
- Liu, Xiaoyan (författare)
- KTH,Yt- och korrosionsvetenskap
-
- Dédinaité, Andra (författare)
- KTH,RISE,Polymer och fiber,KTH Royal Institute of Technology, Sweden,Yt- och korrosionsvetenskap,SP Technical Research Institute of Sweden
-
- Nylander, Tommy (författare)
- Lund University,Lunds universitet,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
-
visa fler...
-
- Dabkowska, Aleksandra (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
-
- Skoda, Maximilian (författare)
- Rutherford-Appleton Lab, UK
-
- Makuska, Ricardas (författare)
- Vilnius University, Lithuania
-
- Claesson, Per Martin (författare)
- KTH,RISE,SP – Sveriges Tekniska Forskningsinstitut,KTH Royal Institute of Technology, Sweden,Yt- och korrosionsvetenskap,SP Technical Research Institute of Sweden
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- Engelska.
-
Ingår i: Journal of Colloid and Interface Science. - : Elsevier BV. - 0021-9797 .- 1095-7103. ; 440, s. 245-252
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://ri.diva-port... (primary) (Raw object)
-
https://doi.org/10.1...
-
http://dx.doi.org/10... (free)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
https://lup.lub.lu.s...
-
visa färre...
Abstract
Ämnesord
Stäng
- Pre-adsorbed branched brush layers were formed on silica surfaces by adsorption of a diblock copolymer consisting of a linear cationic block and an uncharged bottle-brush block. The charge of the silica surface was found to affect the adsorption, with lower amounts of the cationic polyelectrolytedepositing on less charged silica. Cleaning under basic conditions rendered surfaces more negatively charged (more negative zeta-potential) than acid cleaning and was therefore used to increase polyelectrolyte adsorption. The structure of adsorbed layers of the diblock copolymer was as determined by neutron reflectometry found to be about 70 nm thick and very water rich (97%). Interactions between the anionic surfactant sodium dodecylsulfate (SDS) and such pre-adsorbed diblock polymer layers were studied by neutron reflectometry and by optical reflectometry. Optical reflectometry was also used for deducing interactions between the individual blocks of the diblock copolymer and SDS at the silica/aqueous interface. We find that SDS is readily incorporated in the diblock copolymer layer at low SDS concentrations, and preferentially co-localized with the cationic block of the polymer next to the silica surface. At higher SDS concentrations some desorption of polyelectrolyte/surfactant complexes takes place.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology -- Nano-technology (hsv//eng)
Nyckelord
- Polymer brush layer
- Diblock copolymer
- SDS
- Adsorption
- Polyelectrolyte-surfactant complex
- Optical reflectometry
- Neutron reflectivity
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas