Novel fluorescent main-chain liquid crystalline ionomers containing Eu(III) ions

A rod-spring model for main-chain liquid crystalline polymers containing hairpins

Main-chain liquid crystalline polymers (LCPs) are used to produce strong fibers due to their ability to form highly-ordered orientational states. For sufficiently long chains it is known that loss of entropy in such highly-ordered states is partly recovered by the formation of socalled hairpins or kinks. The presence of hairpins not only modifies the microstructure of LCPs, but it has also been...

Soft shape memory in main-chain liquid crystalline elastomers†‡

Molecular Dynamics Simulation of Main Chain Liquid Crystalline Polymers

Molecular dynamics simulations of a model main-chain liquid-crystalline polymer (LCP), and a low molecular weight analogue, have been carried out using an efficient parallel algorithm. Amain-chain LCP is formed with the help of Gay-Berne mesogenic units connected to each other through flexible methylene spacers. We have studied the effect of varying the spacer length, and have examined the regi...

Main-chain smectic liquid-crystalline polymers as randomly disordered systems.

We report a high-resolution X-ray lineshape study of main-chain smectic polymers. The results indicate that the layer ordering differs fundamentally from the algebraic decay typical for other smectic liquid-crystalline systems. The lineshapes are best described by broad squared Lorentzians indicating some form of short-range correlations. However, several higher harmonics are observed, which ex...

Novel Supramolecular Side-Chain Banana-Shaped Liquid Crystalline Polymers Containing Covalent- and Hydrogen-Bonded Bent Cores

Novel supramolecular side-chain banana-shaped liquid crystalline (LC) polymer complexes AmBn-N bearing various (m/n) molar ratios of hydrogenand covalent-bonded bent-core components were acquired by the free radical polymerization, where the hydrogen-bonded (H-bonded) structures were executed via mixing equimolar portions of proton donor (H-donor) polymers AmBn (homopolymers/ copolymers) and py...