Universal Chain-End Coupling Conditions for Brominated Polystyrenes, Polyacrylates, and Polymethacrylates

Flow boundary conditions for chain-end adsorbing polymer blends.

Using the phenol-terminated polycarbonate blend as an example, we demonstrate that the hydrodynamic boundary conditions for a flow of an adsorbing polymer melt are extremely sensitive to the structure of the epitaxial layer. Under shear, the adsorbed parts (chain ends) of the polymer melt move along the equipotential lines of the surface potential whereas the adsorbed additives serve as the sur...

Mani and shapur a universal faith for e universal kingdom

Ullmann-type coupling of brominated tetrathienoanthracene on copper and silver.

We report the synthesis of extended two-dimensional organic networks on Cu(111), Ag(111), Cu(110), and Ag(110) from thiophene-based molecules. A combination of scanning tunnelling microscopy and X-ray photoemission spectroscopy yields insight into the reaction pathways from single molecules towards the formation of two-dimensional organometallic and polymeric structures via Ullmann reaction deh...

Universal Coupling Electronics Compartments

Our objective is to carry out an experimental investigation of gravitational interac tion which embraces terrestrial experiments and astrophysical observations. For several years the work of this group has covered a broad range. Experiments have led to the development of long-term stable gravimeters, laser strain seismometers, and molecular-beam frequency-stabilized lasers. We have also measure...

Universal attractor for inflation at strong coupling.

We introduce a novel nonminimal coupling between gravity and the inflaton sector. Remarkably, for large values of this coupling all models asymptote to a universal attractor. This behavior is independent of the original scalar potential and generalizes the attractor in the φ4 theory with nonminimal coupling to gravity. The attractor is located in the "sweet spot" of parameter values that are pr...