A rapid chromatographic procedure with a C18 column, a mobile phase of 0.15 M sodium dodecyl sulfate (SDS)–10% (v/v) 1-propanol at pH 3 (0.01 M phosphate buffer), and fluorimetric detection, is reported for the control of propranolol (PPL) intake in urine samples, which are injected directly wi...
Here, we copolymerize a monomer containing naphthyl group with 2-hydroxyethyl methacrylate (HEMA) and glycidyl methacrylate (GlyMA) in various molar ratio to obtain copolymers as functional gate dielectric layers of thin-film transistors (TFTs). Using naphthyl-containing molecule to have similar...
Polymerizations of 2-naphthyl methacrylate and 4(1-methylphenethyl)phenyl methacrylate (cumylphenyl methacrylate) have been carried out in solvents with different dielectric constants and donor numbers (DN). By means of 1H-NMR and fluorescence spectroscopy, the tacticities of the polymers were s...
The copolymerization of 2-naphthyl methacrylate (2-NM) with methyl methacrylate (MMA) initiated by 2,2′-azoisobutyronitrile in carbon tetrachloride, chloroform, benzene, acetone and acetonitrile was investigated. The reactivity ratios determined by the methods of Fineman-Ross and Kelen-Tüdo...
The polymerization of 2-naphthyl methacrylate (NM) in toluene in the presence of tetracyanoethylene and picric acid was studied dilatometrically. The overall activation energy for the polymerization was calculated both in the absence and in the presence of electron acceptors. The results (13-7 k...
Copolymers of p-methoxyacrylophenone (PMeOAP) with 2-naphthyl methacrylate (2NMA) and p-biphenyl methacrylate (BMA) containing 0–4·2 wt % of 2NMA and 0–4·9 wt % of BMA were prepared. The photolysis of these copolymers under 366 nm irradiation in dilute ethyl benzoate solution at ambient temp...
Efficient intermolecular excimer emission is observed for solutions of poly(2-naphthyl methacrylate) and copolymers of 2-naphthyl methacrylate and methyl methacrylate, only above a critical concentration. From analysis of the dependence of this concentration upon the polymer molecular weight and...
1-Naphthyl methacrylate and 2-naphthyl methacrylate were polymerized with azoisobutyronitrile in n-hexane, cyclohexane and benzene in the absence and in the presence of tetracyanoethylene. Products were transformed into poly(methyl methacrylate) by hydrolysis and methylation; tacticities were th...
The fluorescence of a series of copolymers of 2-naphthyl methacrylate (2-NM) and methyl methacrylate (MMA) with various contents of 2-NM (obtained in chloroform, carbon tetrachloride and acetonitrile) was investigated. A linear dependence between the ratio of the excimer to monomer emission inte...
This article describes the preparation and characterization of fluorescent and magnetic composite particles of poly(styrene-co-methacrylic acid-co-2-naphthyl methacrylate) (poly(St/MAA/NMA)). First, monodisperse (Dw/Dn
A series of novel ureido benzenesulfonamides incorporating 1,3,5-triazine moieties were obtained by reacting 4-isocyanato-benzenesulfonamide (2) with 2-amino-4,6-dicholoro-1,3,5-triazine (4). The 4-(3-(4,6-dichloro-1,3,5-triazin-2-yl)ureido) benzenesulfonamide (5) was subsequently derivatized by...
The heat capacity of 2-methyl-3-buten-2-ol over the interval T = (5 to 370) K was measured in an adiabatic calorimeter. The standard entropy and heat capacity of the liquid phase at a reference temperature 298.15 K were found to be Som = (232.6 ± 1.0) J · K−1 · mol−1 and Cs,m = (237.4 ± 0.9)...
New azo-polymer structures, with azo content ranging from 15% to ≈100%, are prepared by attaching a side-chain azo-moiety onto poly(isopropenyloxazoline-co-styrene)s and poly(isopropenyloxazoline). Postcoupling conditions are determined by kinetic investigations. Polymer compositions are evalua...
New cross-linked fluorescent particles, with diameters ranging from 850 to 950 nm, were prepared in two steps. In the first step, cross-linked functional particles (650–750 nm) were prepared by nonaqueous dispersion copolymerization of 2-isopropenyl-2-oxazoline with methyl methacrylate, having ...
Thin coatings were deposited by means of low pressure plasma polymerization of 2-isopropenyl-2-oxazoline (2-IOX). Depositions were performed in the pulsed mode, exploiting the carbon-carbon double bond of the monomer, in order to maximize the retention of oxazoline rings in the coatings. The wet...
Thin films were deposited by plasma co-polymerization of 2-isopropenyl-2-oxazoline and 1-octene, varying the total monomers flow rate and the 1-octene percentage in the mixture. The coatings wettability was evaluated by water contact angle measurements, while their stability was investigated by ...
The load dependence of the Vickers microhardness on the as-grown (0 1 0) and (0 0 1), and cleaved (0 0 1) faces of cadmium tartrate pentahydrate (CTPH) single crystals has been investigated. The experimental results showed that, with an increase in the applied load, the microhardness of the as-g...
Pure and doped cadmium tartrate crystals of different morphology have been synthesized. They were obtained using a gel technique. The metallic composition of the crystals was estimated using energy dispersive X-ray analysis (EDAX). The coloration of the crystals changed with the type and composi...
SummaryTricyclic esters derived from bimanes have been synthesized with ring sizes near or equal to that of trypanothione disulfide (T(S)2), a bis-glutathionylspermidine that is involved in regulating the thiol status of Leishmania and other trypanosomatids. Modest activity for many of the compo...
Amino acids (AAs) in alkaline solution were first ethoxycarbonylated with subsequent methoximation of keto acids (KAs). After acidification and solid-phase extraction, tert-butyldimethylsilylation was performed for direct analysis by gas chromatography (GC) on dual-columns with different polarit...
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