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Anion-conducting polysulfone membranes containing hexa-imidazolium functionalized biphenyl units

Weiber, E. Annika; Jannasch, Patric

Customer publications

Anion-conducting polysulfone membranes containing hexa-imidazolium functionalized biphenyl units

Weiber, E. Annika; Jannasch, Patric

Poly(arylene ether sulfone)s containing randomly distributed biphenyl units tethered with precisely six imidazolium cations are designed and prepared with the aim to facilitate ionic clustering and conductivity of anion exchange membranes (AEMs). A series of statistical copolymers with different cationic contents are synthesized via K2CO3-mediated polycondensations of…
High temperature annealing for structural optimization of silica aerogels in solar thermal applications

Strobach, Elise; Bhatia, Bikram; Yang, Sungwoo; Zhao, Lin; Wang, Evelyn N.

Customer publications

High temperature annealing for structural optimization of silica aerogels in solar thermal applications

Strobach, Elise; Bhatia, Bikram; Yang, Sungwoo; Zhao, Lin; Wang, Evelyn N.

Optically transparent, thermally insulating monolithic silica aerogel, with its high solar transmittance and low thermal conductivity, is well-suited for solar thermal applications, particularly concentrated solar power systems. The properties of silica aerogel are directly determined by the structure of the highly porous, interconnected silica network. By using high temperature annealing…
UV-Induced Synthesis and Stabilization of Surfactant-Free Colloidal Pt Nanoparticles with Controlled Particle Size in Ethylene Glycol

Kacenauskaite, Laura; Quinson, Jonathan; Schultz, Hannibal; Kirkensgaard, Jacob Judas Kain; Kunz, Sebastian; Vosch, Tom; Arenz, Matthias

Customer publications

UV-Induced Synthesis and Stabilization of Surfactant-Free Colloidal Pt Nanoparticles with Controlled Particle Size in Ethylene Glycol

Kacenauskaite, Laura; Quinson, Jonathan; Schultz, Hannibal; Kirkensgaard, Jacob Judas Kain; Kunz, Sebastian; Vosch, Tom; Arenz, Matthias

The conventional temperature-induced polyol synthesis of platinum nanoparticles is a powerful and well-established method for the preparation of stable, surfactant-free platinum nanoparticles (Pt NPs) with controlled shape, size and size distribution. Recently, we reported that exposure to daylight leads to the formation of Pt NPs from precursor solutions, suggesting that…
Plant-crafted starches for bioplastics production

Sagnelli, Domenico; Hebelstrup, Kim H.; Leroy, Eric; Rolland-Sabaté, Agnès; Guilois, Sophie; Kirkensgaard, Jacob J. K.; Mortensen, Kell; Lourdin, Denis; Blennow, Andreas

Customer publications

Plant-crafted starches for bioplastics production

Sagnelli, Domenico; Hebelstrup, Kim H.; Leroy, Eric; Rolland-Sabaté, Agnès; Guilois, Sophie; Kirkensgaard, Jacob J. K.; Mortensen, Kell; Lourdin, Denis; Blennow, Andreas

Transgenically-produced amylose-only (AO) starch was used to manufacture bioplastic prototypes. Extruded starch samples were tested for crystal residues, elasticity, glass transition temperature, mechanical properties, molecular mass and microstructure. The AO starch granule crystallinity was both of the B- and Vh-type, while the isogenic control starch was mainly A-type. The first…
Composition and structure of high temperature dairy fouling

Hagsten, Carin; Altskär, Annika; Gustafsson, Stefan; Lorén, Niklas; Hamberg, Lars; Innings, Fredrik; Paulsson, Marie; Nylander, Tommy

Customer publications

Composition and structure of high temperature dairy fouling

Hagsten, Carin; Altskär, Annika; Gustafsson, Stefan; Lorén, Niklas; Hamberg, Lars; Innings, Fredrik; Paulsson, Marie; Nylander, Tommy

The fouling structure and composition is dependent on the product, but also on the heating process applied to it. The structure will have profound effect on the cleaning process and the down time in the production plant. Here, the structure of high temperature (137 °C) milk fouling has been investigated,…
Effect of hydration and dehydration on the properties of SBA-15 layer studied by humidity scanning QCM-D

Znamenskaya, Yana; Björklund, Sebastian; Kocherbitov, Vitaly; Alfredsson, Viveka

Customer publications

Effect of hydration and dehydration on the properties of SBA-15 layer studied by humidity scanning QCM-D

Znamenskaya, Yana; Björklund, Sebastian; Kocherbitov, Vitaly; Alfredsson, Viveka

Surface deposited layers of mesoporous silica particles could function as support for bio-sensing or drug release applications. It is crucial to control the surface deposition process and employ relevant techniques to characterize the properties of the particles on the surface. Here, we deposit SBA-15 particles on native silica or cationic…
Reversibly Actuating Solid Janus Polymeric Fibers

Ionov, Leonid; Stoychev, Georgi; Jehnichen, Dieter; Sommer, Jens Uwe

Customer publications

Reversibly Actuating Solid Janus Polymeric Fibers

Ionov, Leonid; Stoychev, Georgi; Jehnichen, Dieter; Sommer, Jens Uwe

It is commonly assumed that the substantial element of reversibly actuating soft polymeric materials is chemical cross-linking, which is needed to provide elasticity required for the reversible actuation. On the example of melt spun and three-dimensional printed Janus fibers, we demonstrate here for the first time that cross-linking is not…