Polyvinylcaprolactam (PVCap) is an economic kinetic inhibitor for hydrate formation in pipelines during oil and gas transportation. However, its application limited because of the low inhibition performance under certain conditions. In this work, a modified PVCap on chain end proposed. 2-amino-3-propionic acid mercapto-terminated polyvinyl caprolactam (PVCap-NH2-COOH) was synthesized as KHI met...

Herewith we report the first attempt towards non-covalent immobilization of Trametes versicolor laccase on neat and magnetically responsive highly porous polyamide 6 (PA6) microparticles their application for catechol oxidation. Four supports, namely PA6 such carrying Fe, phosphate-coated Fe Fe3O4 cores were synthesized in suspension by activated anionic ring-opening polymerization (AAROP) ?-ca...

In this work, three complexes were synthesized from the trivalent europium ion (EuIII), using picrate anion (pic), and delta-valerolactam (DVL), epsilon-caprolactam (EPK), oenantholactam (OEN). The [Eu(pic)3∙(DVL)3], [Eu(pic)3∙(EPK)3], [Eu(pic)3∙(OEN)3] studied as luminescent markers for application security elements in Brazilian banknotes. All showed red color emission with absorption at 397 n...

The in-situ anionic polymerization of ε-caprolactam (ε-CL) to polyamide-6 enables the production large, near net shape fiber reinforced composites by thermoplastic resin transfer molding. For propagation flow front as well for progress solidification, simultaneous processes and crystallization corresponding reaction kinetics play a central role. To investigate these processes, preparation react...