In the title mol-ecule, C20H18N2O3, an intra-molecular N-H⋯O hydrogen bond leads to a cis conformation of the pyridinyl-vinyl fragment. The phenyl and pyridine rings are inclined to one another by 77.3 (1) °. In the crystal, mol-ecules are linked via pairs of C-H⋯O hydrogen bonds, forming inversion dimers. The dimers are linked by C-H⋯O hydrogen bonds and C-H⋯π inter-actions, forming a three-di...

Micro-capillaries with an engineered hidden surface were produced via the self-rolling of polymer thin films whose surface was photochemically modified so as to coat it with silver nanoparticles. The polymer films consisted of a poly(4-vinyl pyridine) (P4VP) layer topcoated with a polystyrene layer. When immersed in acid water, they underwent self-rolling due to selective swelling of the poly(4...

For the development of polymer carpets as active devices for micro- and nanotechnology, a control of the polymer carpet morphology and especially control of the stimulus responsive polymer brush is needed. Here, we report on the first example for the fabrication of patterned polymer carpets. On a two-dimensional framework of fully crosslinked and chemically patterned nanosheets, polymer brushes...

The sedimentation of quaternized poly(4-vinyl pyridine) (QP4VP) or poly(N-methyl 4-vinyl pyridine iodide) in aqueous solution has been investigated by using an analytical ultracentrifuge (AUC) via sedimentation velocity (SV). When NaI is introduced, either the sedimentation coefficient (s) or apparent molar mass (Mw) of QP4VP increases with NaI concentration because the polyelectrolyte chains a...

Elastomers easily undergo a catastrophic failure as soon crack is introduced by mechanical damage. Thus, it extremely important for elastomers to possess fast healing ability, which enables the quick reparation of cracks. However, developing with self-healing ability and high strength highly challenging. Herein, we fabricate metallosupramolecular elastomer facilely introducing pyridine-Cu coord...

Since the advent of Ziegler-Natta polymerization of ethylene, attempts have been made to extend coordination polymerization to commercially important monomers with polar functionality. In this study we examined the copolymerization of perdeuterated vinyl chloride (VC) and perdeuterated vinyl acetate (VA) with ethylene using a tridentate Fe(II) dichloride pyridine diimine metal catalyst. The res...

An implantable glucose microbiosensor that utilizes an electrodeposited redox polymer/glucose oxidase (GOX) sensing membrane and a highly hydrophilic poly (4-vinyl pyridine-co-acrylic acid) (PVP-PAC) overcoating as an analyte-regulating membrane has been developed. A gold microelectrode was electrodeposited with the redox polymer/GOX composite sensing membrane. Two polymers, a hydrophobic poly ...

The reaction of Cp(CO)2FeI with 2-ethynyl-pyridine under Sonogashira conditions [5% PdCl2(PPh3)2, 10% CuI, THF-NEt3 (2:1)] afforded the title binuclear μ-pyridyl-vinyl-idene FePd complex (FePd1) as a benzene solvate, [FePd(C5H5)(C7H5N)I(CO)2]·C6H6, in a very low yield rather than the expected iron o-pyridyl-ethynyl complex Cp(CO)2Fe-C≡C-(2-C5H4N). The Fe and Pd atoms in FePd1 are bridged by car...