Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Naji, M.
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Tenhu, Heikki

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (35/35 displayed)

  • 2024Clay Composites by In Situ Polymerization of Ionic Liquid-Based Dispersionscitations
  • 2023Clay Composites by In Situ Polymerization of Ionic Liquid-Based Dispersionscitations
  • 2022Well-dispersed clay in photopolymerized poly(ionic liquid) matrix4citations
  • 2020Poly(N,N-dimethylaminoethyl methacrylate) for removing chromium (VI) through polymer-enhanced ultrafiltration technique43citations
  • 2018Poly(N,N-dimethylaminoethyl methacrylate) for removing chromium (VI) through polymer-enhanced ultrafiltration technique43citations
  • 2017Water-Dispersible Silica-Polyelectrolyte Nanocomposites Prepared via Acid-Triggered Polycondensation of Silicic Acid and Directed by Polycations7citations
  • 2016Rheological properties of thermoresponsive nanocomposite hydrogels12citations
  • 2016AuNP-Polymeric Ionic Liquid Composite Multicatalytic Nanoreactors for One-Pot Cascade Reactions32citations
  • 2016Water-dispersible silica-polyelectrolyte nanocomposites prepared via acid-triggered polycondensation of silicic acid and directed by polycations.7citations
  • 2016Water-Dispersible Silica-Polyelectrolyte Nanocomposites Prepared via Acid-Triggered Polycondensation of Silicic Acid and Directed by Polycations7citations
  • 2016AuNP−polymeric ionic liquid composite multicatalytic nanoreactors for one-pot cascade reactions32citations
  • 2013pH dependent polymer surfactants for hindering BSA adsorption to oil-water interfacecitations
  • 2013Thermoresponsiveness of PDMAEMA. Electrostatic and stereochemical effects66citations
  • 2013Imidazolium-Based Poly(ionic liquid)s as New Alternatives for CO2 Capture.85citations
  • 2012Polymer-Modulated Optical Properties of Gold Sols5citations
  • 2012Polymer-Modulated Optical Properties of Gold Sols5citations
  • 2012IR-sintering of ink-jet printed metal-nanoparticles on paper144citations
  • 2012Screening of the effect of biocidal agents released from poly (acrylic acid) matrices on mould growth2citations
  • 2012Crystal morphology modification by the addition of tailor-made stereocontrolled poly(N-isopropyl acrylamide)14citations
  • 2011Characterization of Water-Dispersible n-Type Poly(benzimidazobenzophenanthroline) Derivatives.7citations
  • 2009Poly(ethylene imine) and Tetraethylenepentamine as Protecting Agents for Metallic Copper Nanoparticles79citations
  • 2009Grafting of montmorillonite nano-clay with butyl acrylate and methyl methacrylate by atom transfer radical polymerization: Blends with poly(BuA-co-MMA).42citations
  • 2009Tuning the structure of thermosensitive gold nanoparticle monolayers20citations
  • 2009Rheological properties of associative star polymers in aqueous solutions52citations
  • 2009Grafting of montmorillonite nano-clay with butyl acrylate and methyl methacrylate by atom transfer radical polymerization42citations
  • 2009Rheological Properties of Associative Star Polymers in Aqueous Solutions: Effect of Hydrophobe Length and Polymer Topology52citations
  • 2009Association behavior and properties of copolymers of perfluorooctyl ethyl methacrylate and eicosanyl methacrylate12citations
  • 2008Direct Imaging of Nanoscopic Plastic Deformation below Bulk Tg and Chain Stretching in Temperature-Responsive Block Copolymer Hydrogels by Cryo-TEM27citations
  • 2007Metallic nanoparticles in a polymeric matrixcitations
  • 2007Metallic nanoparticles in a polymeric matrix:Electrical impedance switching and negative differential resistancecitations
  • 2007Phase behavior and temperature-responsive molecular filters based on self-assembly of polystyrene-block-poly(N-isopropylacrylamide)-block-polystyrene147citations
  • 2006A New method for measuring free drug concentration12citations
  • 2005Physical Properties of Aqueous Solutions of a Thermo-Responsive Neutral Copolymer and an Anionic Surfactant15citations
  • 2005Association in Aqueous Solutions of a Thermoresponsive PVCL-g-C11EO42 Copolymer.63citations
  • 2004Complexation of DNA with Poly(methacryl oxyethyl trimethylammonium chloride) and Its Poly(oxyethylene) Grafted Analogue.17citations

Places of action

Chart of shared publication
Karjalainen, Erno
9 / 12 shared
Salminen, Linda
3 / 5 shared
Aseyev, Vladimir O.
6 / 12 shared
Pizarro, Guadalupe Del C.
2 / 6 shared
Oyarzún, Diego P.
2 / 3 shared
Espinosa, Carolina
2 / 2 shared
Pooch, Fabian
2 / 2 shared
Sánchez, Julio
2 / 7 shared
Overton, Philip
3 / 3 shared
Aseyev, Vladimir
3 / 7 shared
Karesoja, Mikko
5 / 8 shared
Annenkov, Vadim
3 / 4 shared
Danilovtseva, Elena
3 / 4 shared
Hosseini, Hossein
1 / 1 shared
Hietala, Sami
6 / 19 shared
Vicent, Cristian
1 / 1 shared
Alfonso, Ignacio
1 / 2 shared
Garcia-Verdugo, Eduardo
2 / 3 shared
Luis, Santiago V.
2 / 4 shared
Montolio, Silvia
1 / 1 shared
Burguete, M. Isabel
2 / 2 shared
Alfonso Rodríguez, Ignacio
1 / 1 shared
Montolio Breva, Silvia
1 / 1 shared
Vicent Barrera, Cristian
1 / 2 shared
Jorgensen, Lene
1 / 5 shared
Colak, Sulan
1 / 1 shared
Guzman, Paulina
1 / 1 shared
Medlicott, Natalie
1 / 1 shared
Baldursdottir, Stefania
2 / 3 shared
Alhoranta, Anu
1 / 1 shared
Niskanen, Jukka
4 / 7 shared
Fuller, Gerald G.
1 / 8 shared
Ostrowski, Maggie
1 / 1 shared
Wu, Cynthia
1 / 1 shared
Mäki-Arvela, Päivi
1 / 10 shared
Mikkola, Jyri-Pekka
1 / 10 shared
Eränen, Kari
1 / 3 shared
Nurmi, Mari
1 / 1 shared
Murzin, Dmitry Yu
1 / 14 shared
Privalova, Elena I.
1 / 1 shared
Said-Mohamed, Cynthia
2 / 2 shared
Maioli, Paolo
2 / 6 shared
Del Fatti, Natalia
1 / 4 shared
Vallée, Fabrice
1 / 5 shared
Lairez, Didier
2 / 3 shared
Lay-Theng, Lee
1 / 1 shared
Fatti, Natalia Del
1 / 3 shared
Lee, Lay-Theng
2 / 3 shared
Vallee, Fabrice
1 / 1 shared
Määttänen, Anni
1 / 6 shared
Bollström, Roger
1 / 10 shared
Ihalainen, Petri
1 / 17 shared
Toivakka, Martti
1 / 54 shared
Pulkkinen, Petri
3 / 3 shared
Tobjörk, Daniel
1 / 3 shared
Peltonen, Jouko
1 / 24 shared
Mäkelä, Tapio
1 / 21 shared
Österbacka, Ronald
3 / 19 shared
Aarnio, Harri
1 / 3 shared
Ritschkoff, Anne-Christine
1 / 9 shared
Mahlberg, Riitta
1 / 23 shared
Jämsä, Saila
1 / 8 shared
Kalliomaki, Katriina
1 / 1 shared
Rantanen, Jukka
1 / 43 shared
Munk, Tommy
1 / 2 shared
Rades, Thomas
1 / 107 shared
Nuopponen, Markus
5 / 5 shared
Kapp, Sebastian
1 / 1 shared
Wagner, Michal
1 / 2 shared
Kvarnstrom, Carita.
1 / 1 shared
Hirvonen, Sami-Pekka
3 / 9 shared
Osterholm, Anna
1 / 1 shared
Ivaska, Ari
1 / 3 shared
Svedström, Kirsi
1 / 10 shared
Laiho, Ari
3 / 7 shared
Känsäkoski, Ari
1 / 1 shared
Järn, Mikael
1 / 5 shared
Shan, Jun
2 / 2 shared
Jokinen, Harri
2 / 2 shared
Torkkeli, Mika
4 / 8 shared
Ruokolainen, Janne
3 / 23 shared
Soininen, Antti
3 / 6 shared
Pulkkinen, Petri M. S.
1 / 1 shared
Zalczer, Gilbert
1 / 2 shared
Rezende, Camila A.
1 / 2 shared
Järvi, Paula
1 / 1 shared
Strandman, Satu
2 / 2 shared
Jankova, Katja
1 / 5 shared
Hvilsted, Søren
2 / 82 shared
Jankova Atanasova, Katja
1 / 24 shared
Jarvi, Paula
1 / 2 shared
Wilen, Carl-Eric
1 / 2 shared
Denifl, Peter
1 / 1 shared
Valtola, Lauri
1 / 1 shared
Hiekkataipale, Panu
1 / 1 shared
Nykänen, Antti
2 / 4 shared
Mezzenga, Raffaele
2 / 15 shared
Ruokolainen, Janne.
1 / 1 shared
Ikkala, Olli
4 / 33 shared
Vilkman, Marja
2 / 8 shared
Sandberg, Henrik G. O.
2 / 9 shared
Baral, Jayanta
2 / 2 shared
Hassinen, Tomi
2 / 10 shared
Ras, Robin
2 / 4 shared
Turunen, Ossi
1 / 1 shared
Rytelä, Marjaana
1 / 1 shared
Laukkanen, Antti
3 / 3 shared
Koskelainen, Ari
1 / 1 shared
Nymark, Soile
1 / 1 shared
Haldin, Charlotte
1 / 1 shared
Kjoniksen, Anna-Lena
2 / 3 shared
Knudsen, Kenneth D.
2 / 7 shared
Helgesen, Geir
1 / 4 shared
Galant, Celine
2 / 2 shared
Lund, Reidar
1 / 11 shared
Nyström, Bo
2 / 6 shared
Andersson, Toni
1 / 1 shared
Chart of publication period
2024
2023
2022
2020
2018
2017
2016
2013
2012
2011
2009
2008
2007
2006
2005
2004

Co-Authors (by relevance)

  • Karjalainen, Erno
  • Salminen, Linda
  • Aseyev, Vladimir O.
  • Pizarro, Guadalupe Del C.
  • Oyarzún, Diego P.
  • Espinosa, Carolina
  • Pooch, Fabian
  • Sánchez, Julio
  • Overton, Philip
  • Aseyev, Vladimir
  • Karesoja, Mikko
  • Annenkov, Vadim
  • Danilovtseva, Elena
  • Hosseini, Hossein
  • Hietala, Sami
  • Vicent, Cristian
  • Alfonso, Ignacio
  • Garcia-Verdugo, Eduardo
  • Luis, Santiago V.
  • Montolio, Silvia
  • Burguete, M. Isabel
  • Alfonso Rodríguez, Ignacio
  • Montolio Breva, Silvia
  • Vicent Barrera, Cristian
  • Jorgensen, Lene
  • Colak, Sulan
  • Guzman, Paulina
  • Medlicott, Natalie
  • Baldursdottir, Stefania
  • Alhoranta, Anu
  • Niskanen, Jukka
  • Fuller, Gerald G.
  • Ostrowski, Maggie
  • Wu, Cynthia
  • Mäki-Arvela, Päivi
  • Mikkola, Jyri-Pekka
  • Eränen, Kari
  • Nurmi, Mari
  • Murzin, Dmitry Yu
  • Privalova, Elena I.
  • Said-Mohamed, Cynthia
  • Maioli, Paolo
  • Del Fatti, Natalia
  • Vallée, Fabrice
  • Lairez, Didier
  • Lay-Theng, Lee
  • Fatti, Natalia Del
  • Lee, Lay-Theng
  • Vallee, Fabrice
  • Määttänen, Anni
  • Bollström, Roger
  • Ihalainen, Petri
  • Toivakka, Martti
  • Pulkkinen, Petri
  • Tobjörk, Daniel
  • Peltonen, Jouko
  • Mäkelä, Tapio
  • Österbacka, Ronald
  • Aarnio, Harri
  • Ritschkoff, Anne-Christine
  • Mahlberg, Riitta
  • Jämsä, Saila
  • Kalliomaki, Katriina
  • Rantanen, Jukka
  • Munk, Tommy
  • Rades, Thomas
  • Nuopponen, Markus
  • Kapp, Sebastian
  • Wagner, Michal
  • Kvarnstrom, Carita.
  • Hirvonen, Sami-Pekka
  • Osterholm, Anna
  • Ivaska, Ari
  • Svedström, Kirsi
  • Laiho, Ari
  • Känsäkoski, Ari
  • Järn, Mikael
  • Shan, Jun
  • Jokinen, Harri
  • Torkkeli, Mika
  • Ruokolainen, Janne
  • Soininen, Antti
  • Pulkkinen, Petri M. S.
  • Zalczer, Gilbert
  • Rezende, Camila A.
  • Järvi, Paula
  • Strandman, Satu
  • Jankova, Katja
  • Hvilsted, Søren
  • Jankova Atanasova, Katja
  • Jarvi, Paula
  • Wilen, Carl-Eric
  • Denifl, Peter
  • Valtola, Lauri
  • Hiekkataipale, Panu
  • Nykänen, Antti
  • Mezzenga, Raffaele
  • Ruokolainen, Janne.
  • Ikkala, Olli
  • Vilkman, Marja
  • Sandberg, Henrik G. O.
  • Baral, Jayanta
  • Hassinen, Tomi
  • Ras, Robin
  • Turunen, Ossi
  • Rytelä, Marjaana
  • Laukkanen, Antti
  • Koskelainen, Ari
  • Nymark, Soile
  • Haldin, Charlotte
  • Kjoniksen, Anna-Lena
  • Knudsen, Kenneth D.
  • Helgesen, Geir
  • Galant, Celine
  • Lund, Reidar
  • Nyström, Bo
  • Andersson, Toni
OrganizationsLocationPeople

article

Rheological properties of associative star polymers in aqueous solutions

  • Järvi, Paula
  • Torkkeli, Mika
  • Strandman, Satu
  • Tenhu, Heikki
  • Jankova, Katja
  • Hietala, Sami
  • Hvilsted, Søren
Abstract

Rheological properties of aqueous solutions of well-defined four-armed amphiphilic star block copolymers, poly(acrylic acid)-block-polystyrene (PAA-b-PS)(4), were investigated as a function of the length of the PS blocks, polymer concentration, and temperature and compared with a corresponding triblock copolymer. These polymers, synthesized by atom transfer radical polymerization (ATRP), were found to form hydrogels due to intermolecular association originating from the PS blocks. The increasing length of the PS block was observed to lead to more elastic networks due to increased hydrophobic interaction. Polymers bearing shorter PS blocks gave gels with relatively long linear response followed by strain hardening before shear thinning while the longer PS blocks lead to formation of elastic but brittle gels with limited linear regime before shear thinning. Star-block copolymers showed more elastic behavior compared with a triblock copolymer of comparable molar mass and composition. In small-angle X-ray scattering measurements the increasing lengths of the PS blocks were observed to lead to a shift in the scattering maxima toward lower q-values. Both rheological and X-ray characterization showed that the thermal properties of the gels are changed by increasing the PS block lengths. Gels with short PS blocks soften upon heating at lower temperatures compared with the gels with longer PS blocks.

Topics
  • copolymer
  • block copolymer
  • X-ray scattering