The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Flexible Block Copolymer Metamaterials
In article number 2307487, Yeo‐Wan Chiang and co‐workers developed dual extractable nanocomposites capable of creating a novel hollow gyroid (HG) featuring maximum porosity, low reflectivity, and high specific reduced modulus. Owing to the highly interconnected and ordered nanonetworks, the pioneering HG is promising as a nanoreactor for developing ultra‐lightweight...
By utilizing bicontinuous and nanoporous ordered nanonetworks, such as double gyroid (DG) and double diamond (DD), metamaterials with exceptional optical and mechanical properties can be fabricated through the templating synthesis of functional materials. However, the volume fraction range of DG in block copolymers is significantly narrow, making it unable to vary its porosity and surface‐to‐volume...
Light-emitting polymers typically possess the π-conjugated light-emitting units to allow the light absorption, energy transfer and light-emitting processes. Currently, the main chain conjugated polymers are mainly investigated but they seldom mention about how stereoregularity affect the light-emitting condition. Consequently, we synthesize the side chain conjugated monomer(9,9-dialkyl-2-(4-vinylphenyl)-9H-fluorene)...
In this study, 80SiO 2 –15CaO–5P 2 O 5 powders prepared using either a polyurethane foam sponge-F127 co-template (SCP-CoT) or only a polyurethane foam sponge macrotemplate (SCP-T) were used to evaluate the gentamicin encapsulation of hierarchically meso-macroporous silica-based calcium phosphate glass powders. The SCP-CoT powders exhibited an approximately three times larger...
We have investigated the temporal evolution of relief terraces and microphase-separated nanodomains in poly(styrene-block-ethylene oxide) P(S-b-EO) on silicon substrates (SiO x /Si) annealed under toluene/butanol vapors. For thin films, solvent annealing causes the formation of relief terraces. With solvent annealing for 12 h, hexagonal arrays of nanospheres of three sizes are dominant over...
A series of degradable block copolymers, polystyrene-b-poly(l-lactide) (PS–PLLA), with PLLA hexagonal cylinder (HC) morphology has been synthesized in this study. Well-oriented, perpendicular PLLA cylinders of PS–PLLA thin films were efficiently achieved by spin coating using appropriate solvents regardless of the use of substrates. After hydrolysis of PLLA, well-oriented HC nanochannel arrays over...
The crystallization and the self-assembly of blending system, syndiotactic polystyrene/polystyrene-block-poly(ethylenepropylene) (sPS/PS-PEP), were investigated by transmission electron microscopy (TEM), polarized light microscopy, small angle X-ray scattering and differential scanning calorimetry (DSC). Spherical microdomains with sPS embedded in PS-PEP matrix were obtained after melt mixing as evidenced...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.