Poling and characterization of nonlinear polymer DCNP/PEK-c thin films

Environment‐Sensitive Behavior of DCNP in Solvents with Different Viscosity, Polarity and Proticity

“…DCNP crystals show excellent electro‐optic properties and efficient second harmonic generation (SHG) . Similar effects may be achieved by poling of polymer thin films containing polar DCNP molecules . Amplified spontaneous emission has been observed for DCNP in a polymethyl methacrylate matrix, proving that DCNP is a suitable fluorescent molecule in rigid environments.…”

“…[15] Similar effects may be achieved by poling of polymer thin films containing polar DCNP molecules. [16,17] Amplified spontaneous emission has been observed for DCNP in ap olymethyl methacrylate matrix, [18] provingt hat DCNP is as uitable fluorescent molecule in rigid environments. This result-as well as the nanosecondf luorescenced ecay time observed in DCNP crystals at room temperature [15] -suggests that this compound ( Figure 1), having ad icyanog roup, can be ag ood candidate for molecular rotors.…”

TSDC spectroscopy of relaxational and interfacial phenomena

“…By using these methods, many properties of polymers can be investigated such as chemical relaxation [220], cold crystallization [221] and stabilizer effects [222], influence of space charges on molecular microstructure [223] and thermal-induced structural changes [224,225], physical aging [226] and the effects of gamma and neutron radiation [227]. Individual polymers (such as polystyrene [228], polycaprolactone [229], polyoctenylene [230], polyvinylnaphthalene [231], unsaturated polyester resins [232,233]) and copolymers [234][235][236][237] as well as composites [238,239] were investigated by the TSDC and other relaxation techniques. Dipolar relaxation in amorphous [240,241], semi-crystalline [241] and liquid crystals [242] were investigated by the TSDC method, and the effects of polarisation and space charging were analysed for different systems [243][244][245].…”

Investigación sobre la mejora de la humectabilidad de films poliméricos de polietileno de baja densidad (LDPE) mediante plasma por descarga corona. Optimización de laminados con espumas de polietileno mediante procesos de laminación con adhesivos Hot-Melt para aplicaciones técnicas en el sector de automoción

“…(Shi, Fang et al 2000) Por ello, puede establecerse una clasificación según el substrato textil recubierto, las resinas poliméricas empleadas o el método de aplicación. Pero normalmente suelen definirse los tipos de recubrimiento según sean microporosos, continuos/hidrófilos, con líquidos o con sólidos.…”

“…Los de menor tensión superficial son el PE y el PP, y son, por lo tanto, los que con mayor frecuencia reciben tratamiento superficial para mejorar su adhesividad. (Shi, Fang et al 2000) Para la modificación directa de la superficie de los substratos poliméricos se emplean principalmente cinco tratamientos. a) Activación de la superficie.…”