We propose a disruptive method to accelerate the crystallization at low temperatures of functional metal oxide films whereby hydroxyl radicals (•OH) are photogenerated in situ from atmosphere where solution-deposited layers UV-irradiated.

A systematic experimental investigation of the coupling between extensional flow and crystallization a commercial grade polypropylene is presented. modified Sentmanat device allows one to generate uniaxial in absence gravity sagging monitoring its effect on kinetics via in-situ visualization sample polarised light. As compared shear induced crystallization, three fold increase extension found. ...

a fourth-generation ziegler-natta catalyst was prepared to synthesize polypropylene (pp), which was stabilized by in situ polymerization employing lignin as antioxidant. the antioxidant properties of lignin were compared with those of the commercial antioxidant irganox 1010. the presence of lignin in the reaction medium slightly decreased the catalytic activity of the reaction. the isotacticity...

We studied the composition-dependent miscibility of polyamide 6 and biobased 4,10 (PA6/PA410) blends, as triggered by crystallization driven phase segregation. The blends were prepared extrusion in a wide composition range characterized X-ray diffraction (both in-situ ex-situ SAXS/WAXS), Differential Scanning Calorimetry (DSC), Polarized Light Optical Microscopy (PLOM) during non-isothermal cry...

Flow-induced structure formation is investigated with in situ wide-angle X-ray diffraction with high acquisition rate (30 Hz) using isotactic polypropylene in a piston-driven slit flow with high wall shear rates (up to ≈900 s(-1) ). We focus on crystallization within the shear layers that form in the high shear rate regions near the walls. Remarkably, the kinetics of the crystallization process...

The effect of flow on crystallization is commonly attributed to entropic reduction, which is caused by stretch and orientation of polymer chains but overlooks the role of flow on final-state free energy. With the aid of in situ synchrotron radiation wide-angle X-ray diffraction (WAXD) and a homemade constrained uniaxial tensile testing machine, polycrystals possessing single-crystal-like orient...

In-Situ Product Removal (ISPR) technologies are being developed at the Dutch National Organization for Applied Sciences (TNO) & Delft University of Technology (TUD) to increase the yield and productivity in fermentation processes. ISPR can in principle be achieved using Template Induced Crystallization (TIC). With TIC, templates are added to the solution as a specific surface upon which the sol...

Renewed interest in room-temperature diffraction has been prompted by the desire to observe structural dynamics of proteins as they function. Serial crystallography, an experimental strategy that aggregates small pieces of data from a large uniform pool of crystals, has been demonstrated at synchrotrons and X-ray free-electron lasers. This work utilizes a microfluidic crystallization platform f...

We discuss the phase behavior and in particular crystallization of a model globular protein (beta-lactoglobulin) in solution in the presence of multivalent electrolytes. It has been shown previously that negatively charged globular proteins at neutral pH in the presence of multivalent counterions undergo a ‘‘re-entrant condensation (RC)’’ phase behavior (Zhang et al., Phys. Rev. Lett., 2008, 10...