Magnetic molecularly imprinted polymers (MIPs) capable of selectively recognizing and absorbing 4,4 ′ -methylenedianiline (MDA) were successfully synthesized, using Fe3O4 coated with mesoporous silicon (Fe3O4@mSiO2) as the magnetic carrier, 4-vinyl pyridine (4-VP) functional monomer, ethylene glycol dimethacrylate (EGDMA...

Heme A, isolated from bovine heart muscle by procedures which include extractions into pyridine/ chloroform and two-phase, liquid-liquid chromatography on Celite, has been converted to several derivatives. Examination of the proton nuclear magnetic resonance (PMR) spectra and other properties of these derivatives reveals heme A to be the iron complex of %formyl-6,7-bis(2”-hydroxycarbonylethyl)-...

Hexahydro-3-alkyl-3H-oxazolo[3,4-a]pyridines 4–15 for the quantitative analysis of various aldehydes were obtained in good yield via condensation reaction 2-hydroxymethylpiperidine (2-HMP) with under mild conditions. When acrolein was used, bicyclic 17 obtained. This novel compound has suitable physical characteristics an analytical standard. The hexahydro-3-vinyl-3H-oxazolo[3,4-a]pyridine 16 c...

We present photoluminescence and electroluminescence studies of bilayers and blends formed from poly~vinyl carbazole! ~PVK! and poly~pyridyl vinylene phenylene vinylene! ~PPyVPV! copolymer derivatives. Bilayers of PVK and the PPyVPV copolymers have a photoluminescence emission which cannot be assigned to either the photoluminescence of PVK or the PPyVPV layer. The blends of the two polymers sho...

The molecular dynamics of poly(2-vinyl-pyridine) (P2VP) brushes is measured by Broadband Dielectric Spectroscopy (BDS) in a wide temperature (250 K to 440 K) and broad spectral (0.1 Hz to 1 MHz) range. This is realized using nanostructured, highly conductive silicon electrodes being separated by silica spacers as small as 35 nm. A "grafting-to"-method is applied to prepare the P2VP-brushes with...