Semi-batch emulsion polymerization of methyl methacrylate-butyl acrylate- methacrylic acid monomers were carried out with the addition of nano ZnO to the monomer feed, to obtain a binder for exterior architectural paints. Nano ZnO reacted spontaneously with acid groups to form zinc methacrylate ...

Poly(glycidyl methacrylate) (PGMA) homopolymer, poly(ethylene glycol)methyl ether-block-poly(glycidyl methacrylate) (MPEG-b-PGMA), poly(methyl methacrylate)-block-poly(glycidyl methacrylate) (PMMA-b-PGMA) diblock copolymers, and poly(ethylene glycol)methyl ether-block-poly(glycidyl methacrylate)...

It has already been reported that incorporation of thiol-ene into methacrylate resin could reduce shrinkage stress significantly. However, the mass fraction of thiol-ene in thiol-ene-methacrylate resin system should be limited because of deterioration of mechanical properties. In order to increa...

HypothesisThe interpolymer complex formation between poly(vinylpyridine)-based polymers with poly(acrylic acid) (PAA), in aqueous or organic medium, is driven by the hydrogen-bonding complexation. Well-defined nanostructures, with specific practical applications, may be obtained by taking advant...

Luminescent-labeled copolymers of 4-acryloylmorpholine and 2-dialkylaminoethyl methacrylates (2-dimethylaminoethyl methacrylate and 2-diethylaminoethyl methacrylate) of varied compositions and molecular masses were synthesized. Polarized luminescence method was used to study relaxation propertie...

This paper describes a simple synthesis of 7-hydroxycoumarin-4-acethydrazide and use of the compound as a convenient and sensitive fluorophoric derivatizing reagent for aldehydes and ketones. Experiments were carried out to study the absorbance and emission characteristics, and the stability in ...

Hydrazides and their solid complexes demonstrate biological and pharmacological activity. The present study determines the hitherto undescribed coordinating properties of three hydrazides (acethydrazide, formic hydrazide and oxalodihydrazide) towards copper(II) in aqueous solutions by means of v...

The complete vibrational spectra of crystalline sodium bromoacetate and sodium bromoacetate-d2 have been recorded and a vibrational assignmem proposed. The intermolecular coupling of these compounds is quite strong and the data are consistent with a centrosymmetric unit cell containing at least ...

The structural evolution of 1-mercapto-2-propanol layer on Au(1 1 1) during a treatment in a N2 flow was investigated using STM and cyclic voltammetry. The pristine layer showed a striped structure of (2√3×√3) with coverage of 0.33. As the SAM was treated in the N2 flow, the superlattice evol...

The reaction of aminoguanidine bicarbonate (Amg) with oxamic, oxalic, malonic and sulfoacetic acids yielded (AmgH)H2NOC–COO (1), OOC–CONHNHC(NH2)NH2 (2) (AmgH)HOOC–CH2–COO (3) and O3S–CH2–CONHNHC(NH2)NH2 (4), respectively. For the first time, we studied the salt-forming ability of aminogua...

Oxidation of 4-alkylphenols 1 by 1-(tert-butylperoxy)-1,2-benziodoxol-3(1H)-one (2) in the presence of tert-butyl hydroperoxide affords selectively 4-(tert-butylperoxy)-2,5-cyclohexadien-1-ones 3 in good yields. Evidence for the involvement of free-radicals is reported.

This study investigated the thermal degradation products of 2,5-dimethyl-2,5-di-(tert-butylperoxy) hexane (DBPH), by TG/GC/MS to identify runaway reaction and thermal safety parameters. It also included the determination of time to maximum rate under adiabatic conditions (TMRad) and self-acceler...

The thermal decomposition characteristics and the thermal safety parameters of 2,2-di(tert-butylperoxy)butane (DBPB) was investigated by differential scanning calorimetry (DSC). The apparent activation energy (Ea) was evaluated by three different kinetic analysis methods based on the DSC experim...

A method for the on-line preconcentration of Cd based on its complex formation with the ammonium salt of O,O-diethylditiophosphate (DDTP) and using the Amberlite XAD-4 resin as a solid support in a column is proposed. Cadmium was detected by flame atomic absorption spectrometry. Different condit...

Novel bis-phosphoramidate compounds phosphoramidic acid, 1,2-ethanediylbis-, tetraethylester (PAEDBTEE) and phosphoramidic acid, 1,4-piperazinediylbis-, tetraethylester (PAPDBTEE) were synthesized as potential flame retardants. Films of cellulose acetate (CA) were prepared by addition of these c...

A series of flavone-7-phosphoramidate derivatives were synthesized and tested for their antiproliferative activity in vitro against human hepatoma cell line HepG2 and human normal hepatic cell line L-O2. Compound 8d, 16d and 17d, incorporating the amino acid alanine, exhibited high inhibitory ac...

This research explores the structural effect of phosphoramidates as flame retardants (FRs) for cotton cellulose. Flame retardant (FR) and thermal decomposition actions of phosphate such as triethyl phosphate (TEP), primary phosphoramidate such as diethyl phosphoramidate (DEPA) and secondary phos...

An efficient and mild one pot synthesis of phosphoramidates has been reported from simple azide precursors like benzyl, allyl and propargyl halides. The method is simple, metal free giving products in good to excellent yields with wide substrate scope. Benzyl halide derivatives (YC6H4CH2X: X = C...

The present study is focused on influences of parameters including pH, temperature, TiO2 catalyst concentration, and reactant concentration on the rate of photocatalytic diethyl phosphoramidate (DEPA) decomposition with Hombikat UV 100 (HK) and Degussa P25 (P25) TiO2. Total mineralization of DEP...

Aryl phosphoramidate prodrugs of fosfoxacin derivatives 15a-b and 8a-b were synthesized and investigated for their ability to target bacteria. No growth inhibition was observed neither for Mycobacterium smegmatis nor for Escherichia coli on solid medium, demonstrating the absence of release of t...