Combining the physical principle of actuators with basic concept photonic crystals, colour-tunable three-dimensional (3D) were successfully fabricated. By controlling d-spacings and refractive index contrasts self-assembled 3D colloidal colours tuned. Various shapes these actuating objects constructed by transforming programmed 2D structures via bending, twisting folding mechanisms. These first breaking symmetry. The selective swellings then applied as driving forces to control actuators....

Highly ordered organic semiconductor micropatterns of the liquid-crystalline small molecule 2,7-didecylbenzothienobenzothiophene (C10-BTBT) are fabricated using a simple method based on template-assisted self-assembly (TASA). The liquid crystallinity C10-BTBT allows solvent-free fabrication high-performance printed field-effect transistors (OFETs). As service to our authors and readers, this journal provides supporting information supplied by authors. Such materials peer reviewed may be...

In situ homeotropic alignment is achieved by photochromic trans- to cis-isomerization of an azo-dye doped in a nematic host. The augmented dipole moment the cis-isomer formed under UV-irradiation expedites molecular assembly into crystalline aggregates. Subsequent deposition aggregates creates roughened surface and induces anchoring transition from initial planar LCs.

Abstract The performance of plasma surface modified silica filler in styrene‐butadiene rubber (SBR) matrix has been analyzed. conditions modification have optimized by taking secant modulus as a standard parameter and the occurrence confirmed area determination Fourier transform infrared spectroscopy. plasma‐modified found to be composed carbon–carbon double bonds carbon–hydrogen bonds. Silane treatment also carried out on for comparative assessment its influence curing behavior...

Poly(4‐anilino‐1‐butanesulfonic acid) sodium salt was synthesized from the electrochemical oxidation of 4‐anilino‐1‐butanesulfonic acid salt, which readily obtained aniline and 1,4‐butane sultone. The resulting water‐soluble polymer has shown much higher redox cyclability than unsubstituted polyaniline, demonstrated by an in situ spectroelectrochemical a cyclic voltammetric study.

Abstract A ribbon‐shaped chiral liquid crystalline (LC) dendrimer with photochromic azobenzene mesogens and an isosorbide center (abbreviated as AZ 3 DLC) was successfully synthesized its major phase transitions were studied by using differential scanning calorimetry (DSC) linear polarized optical microscopy (POM). Its ordered structures at different temperatures further identified through structure‐sensitive diffraction techniques. Based on the experimental results, it found that DLC...

A perylene-based reactive mesogen (DAPDI) forming a lyotropic chromonic liquid crystal (LCLC) phase was newly designed and synthesized for the fabrication of macroscopically oriented patterned thin film polarizer (TFP) on flexible polymer substrates. The anisotropic optical property molecular self-assembly DAPDI were investigated by combination microscopic, scattering spectroscopic techniques. main driving forces face-to-face π–π intermolecular interaction among aromatic cores nanophase...

We report a novel thin film polarizer fabricated from photocurable lyotropic chromonic liquid crystal (LCLC) solution. An organic-based solution having crystalline phase was prepared by dissolving 25–35 wt% of basic dye in an acidic monomer (acrylic acid) The shear-coated after UV irradiation exhibited the maximum polarization efficiency, P = 95.2%. Compared to conventional aqueous-based technique, new method provided many advantages such as outstanding coating processibility, high thermal...

Abstract A new fracture behaviour is described for acrylonitrile–butadiene rubber/clay nanocomposite. The nanocomposite prepared by melt mixing the organo‐treated montmorillonite into rubber matrix, together with a peroxide curative, and crosslinked conventional compression moulding typical rubbers. considerable enhancement in stiffness observed without serious sacrifice ultimate strength. totally different tear morphology of series regularly‐spaced ridges parallel to direction tearing was...

Abstract A novel route for making polyimide sub‐micron fibers is described. The ultrafine are prepared by electrospinning a poly(amic acid) solution, precursor of polyimide, followed thermal imidization. fiber diameters, which much smaller than conventionally spun fibers, range from few tens nanometers to several micrometers. rectangular cross‐section observed in the case with cross‐sectional dimension below ∼500 nm. © 2003 Society Chemical Industry

A chemically programmed photochromic liquid crystal (LC) polymer was newly synthesized and used to fabricate an actuator exhibiting reversible photo-activated bending behavior at ambient temperature. Due the lack of chemical crosslinking in this LC elastomer, it possible form fiber or film by melt solution processing, respectively. The three-dimensional (3D) can be precisely controlled various directions polarized ultraviolet (UV) light. novel photomechanical with room temperature, is...

Abstract Robust coatable polarizer is fabricated by the self‐assembly of lyotropic chromonic liquid crystals and subsequent photo‐polymerizing processes. Their molecular packing structures optical behaviors are investigated combined techniques microscopy, scattering spectroscopy. To stabilize oriented Sunset Yellow FCF (H‐SY) films to minimize possible defects generated during after coating, acrylic acid (AA) added H‐SY/H 2 O solution photo‐polymerized. Utilizing cross‐polarized phase O/AA...

Optically isotropic liquid crystal (OILC) mixtures utilising polymerisation-induced phase separation in of prepolymers and crystals (LCs) have been made their overall electro-optic performances tested by applying an in-plane electric field for flexible display application. Excellent transparent films with a LC to prepolymer weight ratio 42:58 are achieved confirmed SEM images. The average droplet size inside the polymer matrix is 215 nm. Consequently, driven device crossed polariser shows...

A single-gap transflective liquid-crystal (LC) display associated with in-plane rotation of the LC director was designed. In device, a fringe electric field drives to rotate homogeneously aligned in plane optimize polarization efficiency. Rotating degrees director, 22.5° and 45° were required both reflective transmissive regions, respectively. cell gap same for dark state irrespective retardation value at normal direction, which highly important massive fabrications. The switching principle...

Combining the multi-faceted environmental responsiveness of polymers with photonically active structures, we developed spiral photonic actuators which can reversibly change both shape and colour in response to chemical environment.

Abstract A soluble aromatic polyimide was chloromethylated via a reaction with chloromethyl methyl ether in the presence of tin(IV) chloride to produce new starting material for modification polyimides. The chemical structure resulting polymer confirmed by 1 H NMR and Fourier transform infrared spectroscopy. maximum number groups per repeat unit 1.81. stable up 250 °C both chloroform tetrahydrofuran. So that its utilization further could be demonstrated, cinnamic acid reacted formed...