Search

The Pd-catalyzed carbene coupling reaction of N-tosylhydrazones and benzyl bromides has been developed into a polymerization process for the first time, providing an efficient method for the synthesis of poly(arylene vinylene)s (PAVs). This method affords PAVs bearing E-vinylene units predominantly. It can also introduce a CF3 group on each vinylene carbon atom in the polymer main chain. The polymerization has a broad scope and the resultant polymers exhibit interesting optical properties and good thermal stabilities. [ABSTRACT FROM AUTHOR]

Reversible luminescence modulation upon photochromic reactions with excellent reproducibility was achieved from Eu3+ doped Bi2.5Na0.5Nb2O9 multifunctional ferroelectrics. The material exhibits strong sensitivity to visible light or sunlight with fast response time without inducing any structural changes. [ABSTRACT FROM AUTHOR]

A homochiral MOF membrane was successfully and facilely synthesized using an in situ growth method, which had the advantages of cheap raw materials, simple operation and high thermal stability. A diol isomer mixture was used to test the separation efficiency of the membrane at different temperatures and pressures. [ABSTRACT FROM AUTHOR]

A facile strategy was initiated to fabricate large-scale uniform brookite TiO2 nanospindles preferentially grown along the [001] direction, which were highly thermally stable and exhibited superior electrical conductivity, about two orders of magnitude higher than those of anatase and rutile counterparts. [ABSTRACT FROM AUTHOR]