Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Thermoresponsive Pentablock Copolymer on Silica: Temperature Effects on Adsorption, Surface Forces, and Friction
KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Kemi, Yt- och korrosionsvetenskap.
CUNY City Coll, Dept Chem Engn, Grove Sch Engn, New York, NY 10031 USA..
Univ Montreal, Dept Chem, CP 6128 Succursale Ctr Ville, Montreal, PQ H3C 3J7, Canada..
KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Kemi, Yt- och korrosionsvetenskap. RISE Res Inst Sweden, Div Biosci & Mat, SE-11486 Stockholm, Sweden..ORCID-id: 0000-0002-2288-819X
Vise andre og tillknytning
2019 (engelsk)Inngår i: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 35, nr 3, s. 653-661Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The adsorption of hydrophilic or amphiphilic multiblock copolymers provides a powerful means to produce well-defined "smart" surfaces, especially if one or several blocks are sensitive to external stimuli. We focus here on an A-B-A-B-A copolymer, where A is a cationic poly((3acrylamido-propyl)-trimethylammonium chloride) (PAMPTMA) block containing 15 (end blocks) or 30 (middle block) repeat units and B is a neutral thermosensitive water-soluble poly(2-isopropyl-2-oxazoline) (PIPOZ) block with 50 repeat units. X-ray reflectivity and quartz crystal microbalance with dissipation monitoring were employed to study the adsorption of PAMPTMA(15)-PAMPTMA(30)-PIPOZ(50)-PAMPTMA(15) on silica surfaces. The latter technique was employed at different temperatures up to 50 degrees C. Surface forces and friction between the two silica surfaces across aqueous pentablock copolymer solutions at different temperatures were determined with the atomic force microscopy colloidal probe force and friction measurements. The cationic pentablock copolymer was found to have a high affinity to the negatively charged silica surface, leading to a thin (2 nm) and rigid adsorbed layer. A steric force was encountered at a separation of around 3 nm from hard wall contact. A capillary condensation of a polymer-rich phase was observed at the cloud point of the solution. The friction forces were evaluated using Amontons' rule modified with an adhesion term.

sted, utgiver, år, opplag, sider
AMER CHEMICAL SOC , 2019. Vol. 35, nr 3, s. 653-661
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-244115DOI: 10.1021/acs.langmuir.8b03729ISI: 000456749400007PubMedID: 30605339OAI: oai:DiVA.org:kth-244115DiVA, id: diva2:1289751
Konferanse
AESSON PM, 1987, JOURNAL OF COLLOID AND INTERFACE SCIENCE, V117, P366 jas OJ, 2002, LANGMUIR, V18, P1604 ltermo A, 1996, JOURNAL OF COLLOID AND INTERFACE SCIENCE, V183, P506 trov P, 1997, LANGMUIR, V13, P3331 ein J, 2000, JOURNAL OF PHYSICS-CONDENSED MATTER4th Liquid Matter Conference, JUL 03-07, 1999, GRANADA, SPAIN, V12, PA19 unkett MA, 2003, LANGMUIR, V19, P4673 nquy Xavier, 2014, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, V136, P6199 ttersson Torbjorn, 2008, JOURNAL OF COLLOID AND INTERFACE SCIENCE, V324, P246 ndin Maria, 2008, LANGMUIR, V24, P3814
Forskningsfinansiär
Swedish Research Council, 2015-05080
Merknad

QC 20190219

Tilgjengelig fra: 2019-02-19 Laget: 2019-02-19 Sist oppdatert: 2020-01-22bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstPubMed

Personposter BETA

Dobryden, IlliaDédinaité, AndraClaesson, Per M.

Søk i DiVA

Av forfatter/redaktør
Dobryden, IlliaDédinaité, AndraClaesson, Per M.
Av organisasjonen
I samme tidsskrift
Langmuir

Søk utenfor DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric

doi
pubmed
urn-nbn
Totalt: 301 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf