| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kreuzer, Lucas P.
Heinz Maier-Leibnitz Zentrum
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Impact of sulfur addition on the structure and dynamics of Ni–Nb alloy meltscitations
- 2024Impact of sulfur addition on the structure and dynamics of Ni–Nb alloy meltscitations
- 2023Relationship of the atomic dynamics and excess volume of a copper rich Cu76Ti24 alloy melt
- 2021Flexible Sample Environment for the Investigation of Soft Matter at the European Spallation Source: Part II—The GISANS Setupcitations
- 2021Poly(sulfobetaine) versus Poly(N-isopropylmethacrylamide): Co-Nonsolvency-Type Behavior of Thin Films in a Water/Methanol Atmospherecitations
- 2021Selective Silver Nanocluster Metallization on Conjugated Diblock Copolymer Templates for Sensing and Photovoltaic Applicationscitations
- 2021Effects of Polymer Block Length Asymmetry and Temperature on the Nanoscale Morphology of Thermoresponsive Double Hydrophilic Block Copolymers in Aqueous Solutionscitations
- 2021Spray-Deposited Anisotropic Ferromagnetic Hybrid Polymer Films of PS-b-PMMA and Strontium Hexaferrite Magnetic Nanoplateletscitations
- 2021Salt-Dependent Phase Transition Behavior of Doubly Thermoresponsive Poly(sulfobetaine)-Based Diblock Copolymer Thin Filmscitations
- 2021Applied Sciences / Flexible Sample Environment for the Investigation of Soft Matter at the European Spallation Source: Part II—The GISANS Setupcitations
- 2021Humidity‐Induced Nanoscale Restructuring in PEDOT:PSS and Cellulose Nanofibrils Reinforced Biobased Organic Electronicscitations
- 2021Flexible Sample Environments for the Investigation of Soft Matter at the European Spallation Source: Part III—The Macroscopic Foam Cellcitations
- 2021Spray-Deposited Anisotropic Ferromagnetic Hybrid Polymer Films of PS- b -PMMA and Strontium Hexaferrite Magnetic Nanoplateletscitations
- 2021PMMA-b-PNIPAM Thin Films Display Cononsolvency-Driven Response in Mixed Water/Methanol Vaporscitations
- 2021Solvation Behavior of Poly(sulfobetaine)-Based Diblock Copolymer Thin Films in Mixed Water/Methanol Vaporscitations
- 20203D printed spherical environmental chamber for neutron reflectometry and grazing-incidence small-angle neutron scattering experimentscitations
- 2020Self-Assembly of Large Magnetic Nanoparticles in Ultrahigh Molecular Weight Linear Diblock Copolymer Filmscitations
- 2020Cyclic Water Storage Behavior of Doubly Thermoresponsive Poly(sulfobetaine)-Based Diblock Copolymer Thin Filmscitations
- 2019Correlating Nanostructure, Optical and Electronic Properties of Nanogranular Silver Layers during Polymer-Template-Assisted Sputter Depositioncitations
- 2019Water-Induced Structural Rearrangements on the Nanoscale in Ultrathin Nanocellulose Filmscitations
- 2019Morphology Tuning of ZnO/P3HT/P3HT-b-PEO Hybrid Films Deposited via Spray or Spin Coatingcitations
- 2018Comparison of UV Irradiation and Sintering on Mesoporous Spongelike ZnO Films Prepared from PS-b-P4VP Templated Sol–Gel Synthesiscitations
Places of action
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article
Poly(sulfobetaine) versus Poly(N-isopropylmethacrylamide): Co-Nonsolvency-Type Behavior of Thin Films in a Water/Methanol Atmosphere
Abstract
S.1548-1556 ; The swelling and co-nonsolvency behaviors in pure H2O and in mixed H2O/CH3OH atmosphere of two different polar, water-soluble polymers are studied in-situ in thin film geometry. Films of a zwitterionic poly(sulfobetaine), namely poly[3-((2-(methacryloyloxy)ethyl)dimethylammonio) propane-1-sulfonate] (PSPE), and a polar nonionic polymer, namely poly(N-isopropylmethacrylamide) (PNIPMAM), are investigated in real time by spectral reflectance (SR) measurements and Fourier transform infra-red (FTIR) spectroscopy. Whereas PSPE is insoluble in methanol, PNIPMAM is soluble but exhibits co-nonsolvency behavior in water/methanol mixtures. First, the swelling of PSPE and PNIPMAM thin films in H2O vapor is followed. Subsequently, CH3OH is added to the vapor atmosphere and its contracting effect on the water-swollen films is monitored, revealing a co-nonsolvency-type behavior for PNIPMAM. SR measurements indicate that PSPE and PNIPMAM behave significantly different during the H2O swelling and the subsequent exposure to CH3OH, not only with respect to the amounts of absorbed water and CH3OH, but also to the co-solvent induced contraction mechanisms. While PSPE thin films exhibit an abrupt one-step contraction, the contraction of PNIPMAM thin films occurs in two steps. FTIR studies corroborate these findings on a molecular scale and reveal the role of the specific functional groups, both during the swelling and the co-solvent induced switching of the solvation state. ; 54 ; Nr.3