Preparation of polythiophene microrods with ordered chain alignment using nanoporous coordination template

Abstract

The properties of polymeric materials can be amplified by macromolecular alignment.

Thermal Transport in Conductive Polymer–Based Materials

“…During the preparation of polymers, there are many ways to control the alignment of chain orientations, such as mechanical stretching, nanoscale templating, electrospinning, applying magnetic and electric field, and thermal annealing . Among them, mechanical stretching is an easy‐to‐implement and effective way to enhance the thermal conductivity of amorphous polymers.…”

One-pot synthesis of enhanced fluorescent copper nanoclusters encapsulated in metal–organic frameworks

“…Metal-organic frameworks (MOFs) are a novel class host of highly porous materials constructed from metal ions and organic linkers. Four well-established strategies have been exploited for encapsulating dyes, 14,15 polymers, 16 biomolecules, 17 particularly nanomaterials (NMs) within MOFs according to the order of the growth of the materials: ship-in-bottle strategy (assembly of NCs inside MOFs), bottle-around-ship strategy (assembly of MOFs around NCs), sandwich assembly strategy (embedding NCs between MOFs layers) and in situ encapsulation (simultaneous synthesis of MOFs and NCs). 18 The resulting composites enhanced performance characteristics of the guest materials in many elds such as gas storage, 19,20 catalysis, 21 and sensors.…”

Polymer in MOF Nanospace: from Controlled Chain Assembly to New Functional Materials

“…As described in section 3.2.1, the chains inside the MOF present a cofacial assembly . However released polymer adopts the more stable herring‐bone packing, with crystallites mainly aligned along the main crystalline axis …”

“…In addition to the overall macroscopic shape of crystals, templated polymer particles also maintain a reminiscent chain alignment after release ,. However, while the structure retains the shape at the micrometer scale, a reconstruction at the nanometer range usually occurs to compensate the free volume left by the MOF.…”

“…In most cases, the removal of the MOF causes a coalescence of the polymer on the nanometer‐scale (10 nm typically). While the overall shape of crystals (at the micrometer scale) is maintained, the released polymer exhibits a mesoporous character that does not mimic accurately the initial structure of the MOF ,,. Increasing further the flexibility (for instance by heating the polymer above its T g or soaking it in a solvent) results in an irreversible loss of porosity.…”