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Characterization

Effects of Interconnected Polymer Nanopores Leading to Different Degrees of Confined Polymerization

Wang, Kui; Lei, Jinhua; Nie, Heran; Shen, Lu; Chen, Peng; Zhou, Guangyuan

 (Natural) polymersCustomer publicationsPhase analysisPolymer researchSAXS

Effects of Interconnected Polymer Nanopores Leading to Different Degrees of Confined Polymerization

Wang, Kui; Lei, Jinhua; Nie, Heran; Shen, Lu; Chen, Peng; Zhou, Guangyuan

In this study, different degrees of ethylene-confined polymerization (non-confined, slightly confined, and highly confined) are presented in porous polymer microspheres (PPMs) with an interconnected tri-modal pore structure. First, three catalysts, Cp2ZrCl2, Cp2TiCl2, and TiCl4, are attached to the interface of PPMs to form a nano-confined space for ethylene polymerization. Then…
Strengthening mechanisms in Fe-Al based ferritic low-density steels

Pramanik, Sudipta; Koppoju, Suresh; Anupama, A. V.; Sahoo, Balaram; Suwas, Satyam

 ApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialSAXSShapeTechnique

Strengthening mechanisms in Fe-Al based ferritic low-density steels

Pramanik, Sudipta; Koppoju, Suresh; Anupama, A. V.; Sahoo, Balaram; Suwas, Satyam

Low-density steels with different aluminium contents have been investigated with an aim to examine the occurrence of different strengthening mechanisms leading to its higher strength. A composition corresponding to 6.8wt% aluminium has been studied to understand the underlying strengthening mechanisms. Different factors contributing to the strengthening mechanisms have been separately…
Study of liquid-phase molecular packing interactions and morphology of fatty acid methyl esters (biodiesel)

Berman, Paula; Meiri, Nitzan; Colnago, Luiz A.; Moraes, Tiago B.; Linder, Charles; Levi, Ofer; Parmet, Yisrael; Saunders, Michael; Wiesman, Zeev

 ApplicationCharacteristic dimensionCharacterizationCustomer publicationsLiquid crystalsMaterialOil & gasSAXSSelf-assembled materialTechnique

Study of liquid-phase molecular packing interactions and morphology of fatty acid methyl esters (biodiesel)

Berman, Paula; Meiri, Nitzan; Colnago, Luiz A.; Moraes, Tiago B.; Linder, Charles; Levi, Ofer; Parmet, Yisrael; Saunders, Michael; Wiesman, Zeev

Biotechnology for Biofuels, 2015, vol 8, 1, pp. 12DOI:10.1186/s13068-014-0194-7AbstractPMID: 25688289Visit the full articleBack to the overview
Polymorphism, microstructure and rheology of butter. Effects of cream heat treatment

Rønholt, Stine; Kirkensgaard, Jacob Judas Kain; Pedersen, Thomas Bæk; Mortensen, Kell; Knudsen, Jes Christian

 ApplicationCharacterizationCrystalline fractionCustomer publicationsFoodFood scienceMaterialPhase analysisSAXSTechniqueTemperatureWAXS

Polymorphism, microstructure and rheology of butter. Effects of cream heat treatment

Rønholt, Stine; Kirkensgaard, Jacob Judas Kain; Pedersen, Thomas Bæk; Mortensen, Kell; Knudsen, Jes Christian

Food chemistry, 2012, vol 135, 3, pp. 1730–1739DOI:Visit the full articleBack to the overview
Ordered Mesoporous to Macroporous Oxides with Tunable Isomorphic Architectures: Solution Criteria for Persistent Micelle Templates

Lokupitiya, Hasala N.; Jones, Alexis; Reid, Barry; Guldin, Stefan; Stefik, Morgan

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsGISAXSGIWAXSInorganic materialMaterialPhase analysisPorous materialRenewable energySAXSSelf-assembled materialSurfactantsTechniqueTemperatureThin filmsWAXS

Ordered Mesoporous to Macroporous Oxides with Tunable Isomorphic Architectures: Solution Criteria for Persistent Micelle Templates

Lokupitiya, Hasala N.; Jones, Alexis; Reid, Barry; Guldin, Stefan; Stefik, Morgan

Porous and nanoscale architectures of inorganic materials have become crucial for a range of energy and catalysis applications, where the ability to control the morphology largely determines the transport characteristics and device performance. Despite the availability of a range of block copolymer self-assembly methods, the conditions for tuning the key…
Bandgap-Tuning in Triple-Chalcogenophene Polymer Films by Thermal Annealing

González, Daniel Moseguí; Raftopoulos, Konstantinos N.; He, Gang; Papadakis, Christine M.; Brown, Alex; Rivard, Eric; Müller-Buschbaum, Peter

 (Natural) polymersApplicationCharacterizationCustomer publicationsMaterialPolymer researchRenewable energySAXSShapeTechniqueTemperatureThin filmsWAXS

Bandgap-Tuning in Triple-Chalcogenophene Polymer Films by Thermal Annealing

González, Daniel Moseguí; Raftopoulos, Konstantinos N.; He, Gang; Papadakis, Christine M.; Brown, Alex; Rivard, Eric; Müller-Buschbaum, Peter

Macromolecular Rapid Communications, 2017, DOI:Visit the full articleBack to the overview
Blocked Shape Memory Effect in Negative Poisson’s Ratio Polymer Metamaterials

Boba, Katarzyna; Bianchi, Matteo; McCombe, Greg; Gatt, Ruben; Griffin, Anselm C.; Richardson, Robert M.; Scarpa, Fabrizio; Hamerton, Ian; Grima, Joseph N.

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCrystalline fractionCustomer publicationsMaterialPolymer researchSAXSTechniqueWAXS

Blocked Shape Memory Effect in Negative Poisson’s Ratio Polymer Metamaterials

Boba, Katarzyna; Bianchi, Matteo; McCombe, Greg; Gatt, Ruben; Griffin, Anselm C.; Richardson, Robert M.; Scarpa, Fabrizio; Hamerton, Ian; Grima, Joseph N.

We describe a new class of negative Poisson’s ratio (NPR) open cell PU–PE foams produced by blocking the shape memory effect in the polymer. Contrary to classical NPR open cell thermoset and thermoplastic foams that return to their auxetic phase after reheating (and therefore limit their use in technological applications),…
Monodisperse hollow silica spheres: An in-depth scattering analysis

Ruckdeschel, Pia; Dulle, Martin; Honold, Tobias; Förster, Stephan; Karg, Matthias; Retsch, Markus

 ApplicationCharacterizationCustomer publicationsInorganic materialsMaterialNanoparticles & colloidsParticlesPorous materialSAXSShapeTechnique

Monodisperse hollow silica spheres: An in-depth scattering analysis

Ruckdeschel, Pia; Dulle, Martin; Honold, Tobias; Förster, Stephan; Karg, Matthias; Retsch, Markus

Herein, we fabricate hollow silica nanoparticles with exceptionally narrow size distributions that inherently possess two distinct length scales—tens of nanometers with regards to the shell thickness, and hundreds of nanometers in regards to the total diameter. We characterize these structures using dynamic and static light scattering (DLS and SLS), small…
Rheological Link Between Polymer Melts with a High Molecular Weight Tail and Enhanced Formation of Shish-Kebabs

Wingstrand, Sara L.; Shen, Bo; Kornfield, Julie A.; Mortensen, Kell; Parisi, Daniele; Vlassopoulos, Dimitris; Hassager, Ole

 CharacterizationCustomer publicationsLipidsProteins & DNA/RNASAXSStructural biology

Rheological Link Between Polymer Melts with a High Molecular Weight Tail and Enhanced Formation of Shish-Kebabs

Wingstrand, Sara L.; Shen, Bo; Kornfield, Julie A.; Mortensen, Kell; Parisi, Daniele; Vlassopoulos, Dimitris; Hassager, Ole

Presence of an ultra high molecular weight (UHMw) fraction in flowing polymer melts is known to facilitate formation of oriented crystalline structures significantly. The UHMw fraction manifests itself as a minor tail in the molar mass distribution and is hardly detectable in the canonical characterization methods. In this study, alternatively,…
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