Rolf Mülhaupt
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View article: Self-Assembling Amphiphilic ABA Triblock Copolymers of Hyperbranched Polyglycerol with Poly(tetrahydrofuran) and Their Nanomicelles as Highly Efficient Solubilization and Delivery Systems of Curcumin
Self-Assembling Amphiphilic ABA Triblock Copolymers of Hyperbranched Polyglycerol with Poly(tetrahydrofuran) and Their Nanomicelles as Highly Efficient Solubilization and Delivery Systems of Curcumin Open
Delivering of hydrophobic drugs by polymeric nanoparticles is an intensively investigated research and development field worldwide due to the insufficient solubility of many existing and potential new drugs in aqueous media. Among polymeri…
View article: Bicontinuous Nanophasic Conetworks of Polystyrene with Poly(dimethylsiloxane) and Divinylbenzene: From Macrocrosslinked to Hypercrosslinked Double-Hydrophobic Conetworks and Their Organogels with Solvent-Selective Swelling
Bicontinuous Nanophasic Conetworks of Polystyrene with Poly(dimethylsiloxane) and Divinylbenzene: From Macrocrosslinked to Hypercrosslinked Double-Hydrophobic Conetworks and Their Organogels with Solvent-Selective Swelling Open
Polymer conetworks, which consist of two or more covalently crosslinked polymer chains, not only combine the individual characteristics of their components, but possess various unique structural features and properties as well. In this stu…
View article: Crystallographic Texture Evolution in 3D Printed Polyethylene Reactor Blends
Crystallographic Texture Evolution in 3D Printed Polyethylene Reactor Blends Open
In this work, crystallographic texture evolution in 3D printed trimodal polyethylene (PE) blends and high-density PE (HDPE) benchmark material were investigated to quantify the resulting material anisotropy, and the results were compared t…
View article: Dimensional accuracy and simulation-based optimization of polyolefins and biocopolyesters for extrusion-based additive manufacturing and steam sterilization.
Dimensional accuracy and simulation-based optimization of polyolefins and biocopolyesters for extrusion-based additive manufacturing and steam sterilization. Open
Polyolefins exhibit robust mechanical and chemical properties and can be applied in the medical field, e.g. for the manufacturing of dentures. Despite their wide range of applications, they are rarely used in extrusion-based printing due t…
View article: Influence of Graphene Type and Content on Friction and Wear of Silicon Carbide/Graphene Nanocomposites in Aqueous Environment
Influence of Graphene Type and Content on Friction and Wear of Silicon Carbide/Graphene Nanocomposites in Aqueous Environment Open
Two different types of graphene materials were used as functional nanofillers for the mechanical and tribological improvement of silicon carbide/graphene nanocomposites. On the one hand is thermally reduced graphite oxide (TRGO) reduced at…
View article: Laser Ablation on Isostatic Graphite—A New Way to Create Exfoliated Graphite
Laser Ablation on Isostatic Graphite—A New Way to Create Exfoliated Graphite Open
In search of a new way to fabricate graphene-like materials, isostatic graphite targets were ablated using high peak power with a nanosecond-pulsed infrared laser. We conducted dry ablations in an argon atmosphere and liquid-phase ablation…
View article: Photocured Cationic Polyoxazoline Macromonomers as Gel Polymer Electrolytes for Lithium-Ion Batteries
Photocured Cationic Polyoxazoline Macromonomers as Gel Polymer Electrolytes for Lithium-Ion Batteries Open
In this work, we present a cationic vinylimidazolium-terminated poly(2-ethyl-2-oxazoline) (PEtOx) macromonomer as a key component of gel polymer electrolytes (GPE) for lithium-ion batteries. GPE production followed a scalable process based…
View article: Nickel nanoparticle-decorated reduced graphene oxide/WO <sub>3</sub> nanocomposite – a promising candidate for gas sensing
Nickel nanoparticle-decorated reduced graphene oxide/WO <sub>3</sub> nanocomposite – a promising candidate for gas sensing Open
We report for the first time the combination of WO 3 sensing elements with a non-noble metal–carbon composite, namely a nickel metal nanoparticle–carbon composite (Ni@rGO). Previous work with WO 3 had used either NiO (as part of the WO 3 l…
View article: Functionalized acrylic polyhydroxy urethanes as molecular tool box for photocurable thermosets and <scp>3D</scp> printing
Functionalized acrylic polyhydroxy urethanes as molecular tool box for photocurable thermosets and <span>3D</span> printing Open
Liquid urethane (meth)acrylates represent attractive components of photocurable thermosets for applications ranging from coatings and adhesives to 3D printing. Herein we tailor liquid polyfunctional urethane methacrylates (UMA) derived fro…
View article: Nickel nanoparticle decorated reduced graphene oxide-WO3 nanocomposite - a promising candidate for gas sensing
Nickel nanoparticle decorated reduced graphene oxide-WO3 nanocomposite - a promising candidate for gas sensing Open
We report for the first time the doping of WO 3 sensing elements with a non-noble metal carbon composite, namely a nickel metal nanoparticles-carbon composite (Ni@rGO). Previous work with WO 3 had used either NiO (as part of the WO 3 latti…
View article: Pandemic-Driven Development of a Medical-Grade, Economic and Decentralized Applicable Polyolefin Filament for Additive Fused Filament Fabrication
Pandemic-Driven Development of a Medical-Grade, Economic and Decentralized Applicable Polyolefin Filament for Additive Fused Filament Fabrication Open
A polyolefin with certified biocompatibility according to USP class VI was used by our group as feedstock for filament-based 3D printing to meet the highest medical standards in order to print personal protective equipment for our universi…
View article: Cryo‐3D Printing of Hierarchically Porous Polyhydroxymethylene Scaffolds for Hard Tissue Regeneration
Cryo‐3D Printing of Hierarchically Porous Polyhydroxymethylene Scaffolds for Hard Tissue Regeneration Open
High molecular weight polyhydroxymethylene (PHM) has a repeat unit identical to that of low molecular weight sugar alcohols and exhibits carbohydrate‐like properties. Herein, cryogenic extrusion‐based 3D printing is combined with a phase s…
View article: Multifunctional Mesostructures: Design and Material Programming for 4D-printing
Multifunctional Mesostructures: Design and Material Programming for 4D-printing Open
Natural materials, such as in plant and bone organs, adapt to their surroundings with functionally graded underlying structures. Advances in extrusion-based 4D-printing have enabled the manufacture of bio-inspired systems with varying prop…
View article: Synthesis of Tosyl- and Nosyl-Ended Polyisobutylenes with High Extent of Functionalities: The Effect of Reaction Conditions
Synthesis of Tosyl- and Nosyl-Ended Polyisobutylenes with High Extent of Functionalities: The Effect of Reaction Conditions Open
Endfunctional polymers possess significant industrial and scientific importance. Sulfonyl endgroups, such as tosyl and nosyl endfunctionalities, due their ease of substitution are highly desired for a variety of polymer structures. The sul…
View article: Nanoconfined Crosslinked Poly(ionic liquid)s with Unprecedented Selective Swelling Properties Obtained by Alkylation in Nanophase-Separated Poly(1-vinylimidazole)-l-poly(tetrahydrofuran) Conetworks
Nanoconfined Crosslinked Poly(ionic liquid)s with Unprecedented Selective Swelling Properties Obtained by Alkylation in Nanophase-Separated Poly(1-vinylimidazole)-l-poly(tetrahydrofuran) Conetworks Open
Despite the great interest in nanoconfined materials nowadays, nanocompartmentalized poly(ionic liquid)s (PILs) have been rarely investigated so far. Herein, we report on the successful alkylation of poly(1-vinylimidazole) with methyl iodi…
View article: Lysine‐Functionalized Gibbsite Nanoplatelet Dispersions for Nonisocyanate Polyhydroxyurethane Nanocomposites and Translucent Coatings
Lysine‐Functionalized Gibbsite Nanoplatelet Dispersions for Nonisocyanate Polyhydroxyurethane Nanocomposites and Translucent Coatings Open
The lysine functionalization of ultrathin γ‐Al(OH) 3 single‐crystal nanoplatelets (ly‐gibbsite) having an average thickness below 100 nm and a width ranging between 0.5 and 1.5 µm renders them organophilic and enables their agglomerate‐fre…
View article: Low‐Viscosity Limonene Dimethacrylate as a Bio‐Based Alternative to Bisphenol A‐Based Acrylic Monomers for Photocurable Thermosets and 3D Printing
Low‐Viscosity Limonene Dimethacrylate as a Bio‐Based Alternative to Bisphenol A‐Based Acrylic Monomers for Photocurable Thermosets and 3D Printing Open
Bisphenol A glycidyl methacrylate (BisGMA) is well established as photocurable resin in dental restoratives and 3D printing. At present there are raising concerns regarding the estrogen‐mimicking bisphenol A (BPA) contamination of health c…
View article: Graphenated Ceramic Particles as Functional Fillers for Nonisocyanate Polyhydroxyurethane Composites
Graphenated Ceramic Particles as Functional Fillers for Nonisocyanate Polyhydroxyurethane Composites Open
Graphenation of corundum and silicon carbide filler particles simultaneously improves mechanical properties and electrical conductivity of nonisocyanate polyhydroxyurethanes (NIPU) composites prepared by amine cure of polyfunctional cyclic…
View article: Polyhydroxymethylenes as Multifunctional High Molecular Weight Sugar Alcohols Tailored for 3D Printing and Medical Applications
Polyhydroxymethylenes as Multifunctional High Molecular Weight Sugar Alcohols Tailored for 3D Printing and Medical Applications Open
Common sugar alcohols used as artificial sweeteners and components of polymer networks represent low molecular weight polyhydroxymethylenes (PHMs) with the general formula [CH(OH)] n H 2 but very low degree of polymerization ( n = 2–6). He…
View article: Cellular, Mineralized, and Programmable Cellulose Composites Fabricated by 3D Printing of Aqueous Pastes Derived from Paper Wastes and Microfibrillated Cellulose
Cellular, Mineralized, and Programmable Cellulose Composites Fabricated by 3D Printing of Aqueous Pastes Derived from Paper Wastes and Microfibrillated Cellulose Open
Combining recycling of paper wastes (WPs) with extrusion‐based additive manufacturing represents a sustainable route to cellular cellulose composites tailored for lightweight construction. Particularly, shear mixing of shredded WPs with an…
View article: Programmable Thermoresponsive Micelle-Inspired Polymer Ionic Liquids as Molecular Shuttles for Anionic Payloads
Programmable Thermoresponsive Micelle-Inspired Polymer Ionic Liquids as Molecular Shuttles for Anionic Payloads Open
International audience
View article: Graphene/Polyelectrolyte Layer-by-Layer Coatings for Electromagnetic Interference Shielding
Graphene/Polyelectrolyte Layer-by-Layer Coatings for Electromagnetic Interference Shielding Open
Electromagnetic interference (EMI) shielding coating materials with thicknesses in the microscale are required in many sectors, including communications, medical, aerospace, and electronics, to isolate the electromagnetic radiation emitted…
View article: Ultra-broad molecular weight distribution effects on viscoelastic properties of linear multimodal PE
Ultra-broad molecular weight distribution effects on viscoelastic properties of linear multimodal PE Open
Rheological investigation of polyethylene (PE) blends with a significant amount (up to 50 wt. %) of ultrahigh molecular weight PE (UHMWPE, with weight average molecular weight Mw > 106 g/mol) was not accessible so far. The development of s…
View article: Graphene/Polyelectrolyte Layer-by-Layer Coatings for\nElectromagnetic Interference Shielding
Graphene/Polyelectrolyte Layer-by-Layer Coatings for\nElectromagnetic Interference Shielding Open
Electromagnetic\ninterference (EMI) shielding coating materials\nwith thicknesses in the microscale are required in many sectors, including\ncommunications, medical, aerospace, and electronics, to isolate the\nelectromagnetic radiation emi…
View article: Graphene/Polyelectrolyte Layer-by-Layer Coatings for Electromagnetic Interference Shielding
Graphene/Polyelectrolyte Layer-by-Layer Coatings for Electromagnetic Interference Shielding Open
Electromagnetic interference (EMI) shielding coating materials with thicknesses in the microscale are required in many sectors, including communications, medical, aerospace, and electronics, to isolate the electromagnetic radiation emitted…
View article: Mechanochemical Routes to Functionalized Graphene Nanofillers Tuned for Lightweight Carbon/Hydrocarbon Composites
Mechanochemical Routes to Functionalized Graphene Nanofillers Tuned for Lightweight Carbon/Hydrocarbon Composites Open
Graphite exfoliation by shear‐induced dry and wet processes and especially mechanochemistry represent attractive routes to carbon nanofillers. Dry ball‐milling of graphite in a planetary mill under gas pressure is a scalable and environmen…
View article: Issue Information ‐ Cover Description
Issue Information ‐ Cover Description Open
MONOMER COPOLYMERIZATIONOn page 2539, Christopherson and coworkers present methods for the synthesis and polymerization of iridium(III)-based acrylic monomers and polymerization by Cu(0)-reversible deactivation radical polymerization (RDRP…
View article: Mechanochemically Carboxylated Multilayer Graphene for Carbon/ABS Composites with Improved Thermal Conductivity
Mechanochemically Carboxylated Multilayer Graphene for Carbon/ABS Composites with Improved Thermal Conductivity Open
Dry ball milling of graphite under carbon dioxide pressure affords multilayer-functionalized graphene (MFG) with carboxylic groups as nanofiller for composites of carbon and acrylonitrile–butadiene–styrene copolymers (ABSs). Produced in a …
View article: Issue Information ‐ Cover Description
Issue Information ‐ Cover Description Open
On page 1926, Sabrina Zaccaria and colleagues propose a strategy for preparing antimicrobial materials to be used in preventing infections that could cause biomedical device failure.The materials are prepared by mixing-and-matching ureido-…