A blue-fluorescence 2,4,6-tris(4-fluorophenyl)-1,3,5-triazine (TFPT) monomer was synthesized with high yield and high purity under mild reaction conditions. The TFPT, which had three active fluoric groups, was facilely incorporated into stable cross-linked fluorescent polymeric nanoparticles (FCPNs) via precipitation polymerization with 6-(4-hydroxyphenyl)pyridazin-3(2H)-one (HPZ). The FCPNs we...

The direct, by-product-free conversion of basic feedstocks to products of medicinal and agricultural relevance is a broad goal of chemical research. Butadiene is a product of petroleum cracking and is produced on an enormous scale (about 12 × 10(6) metric tons annually). Here, with the use of a ruthenium catalyst modified by a chiral phosphate counterion, we report the direct redox-triggered ca...

Petroleum transformation industries have applied membrane processes for solvent and hydrocarbon recovery as an economic alternative to reduce their emissions and reuse evaporated components. Separation of the volatile organic compounds (VOCs) (toluene-propylene-butadiene) from air was performed using a poly dimethyl siloxane (PDMS)/α-alumina membrane. The experimental set-up followed the consta...

[reaction: see text] H-Phosphonate monomers of 2'-O-(2-methoxyethyl) ribonucleosides have been synthesized. Oxidation of oligonucleotide H-phosphonates has been optimized to allow the synthesis of oligonucleotides containing either 2'-deoxy or 2'-O-(2-methoxyethyl) ribonucleoside residues combined with three different phosphate modifications in the backbone, i.e., phosphodiester (PO), phosphoro...

Petrochemical based polymers, paints and coatings are cornerstones of modern industry but our future sustainable society demands greener processes renewable feedstock materials. A challenge is to access platform monomers from biomass resources while integrating the principles green chemistry in their chemical synthesis. We present a synthesis route starting biomass-derived furfural towards comm...

The crystal structure of the title compound, [Mg(C(5)H(3)N(2)O(2))(2)(H(2)O)(4)]·2H(2)O, is composed of centrosymmetric monomers in which an Mg(II) ion is coordinated by two carboxyl-ate O atoms from the two pyridazine-4-carboxylate ligands. The monomers linked by O-H⋯O and O-H⋯N hydrogen bonds into layers which are held together by hydrogen bonds in which solvent water O atoms act as donors an...

Enzymatic catalysis is an ecofriendly strategy for the production of high-value low-molecular-weight aromatic compounds from lignin. Although well-definable aromatic monomers have been obtained from synthetic lignin-model dimers, enzymatic-selective synthesis of platform monomers from natural lignin has not been accomplished. In this study, we successfully achieved highly specific synthesis of ...

We report measurements of third-order nonlinear electric polarizabilities (hyperpolarizabilities) for ethylene, 1,3-butadiene, 1,3, 5-hexatriene and benzene molecules in the gas phase using dc electric-field induced optical second-harmonic generation. 1,2 The hyperpolarizabilities of conjugated molecules have been of interest for some time. 3-6 Because of the delocalized 7T electrons these hype...

Tertiary amine-modified corn starches were converted to their basic or hydroxide form and combined with carboxylated butadiene-acrylonitrile copolymer and butadiene-styrene-sulfonic acid polymer to produce ionically bonded filler-elastomer composites. An increasing percentage of the elastomer fraction in the starch-elastomer composite is insolubilized as the starch-to-elastomer ratio increases....