Abstract A dynamic surface pattern with a topography and fluorescence in response to environmental stimulus can enable information recording, hiding, reading. Such patterns are therefore widely used security anticounterfeiting. Here, we demonstrate dual using supramolecular network comprising copolymer containing pyridine (P4VP-nBA-S) hydroxyl distyrylpyridine (DSP-OH) as the skin layer for bilayer wrinkling systems, which both wrinkle morphology color be simultaneously regulated by visible...

Dynamic micro/nanopatterns provide an effective approach for on-demand tuning of surface properties to realize a smart surface. We report simple yet versatile strategy the fabrication near-infrared (NIR) light-responsive dynamic wrinkles by using carbon nanotube (CNT)-containing poly(dimethylsiloxane) (PDMS) elastomer as substrate bilayer systems, with various functional polymers serving top stiff layers. The high photon-to-thermal energy conversion CNT leads NIR-controlled thermal expansion...

The unique selective adsorption of hydrophilic dyes gives the hybrid hydrogels hyperbranched poly(ether amine) (SiO1.5-hPEA-Gels) potential in separation. We here introduced poly(vinyl alcohol) (PVA) to enhance mechanical strength extend them into practical application. A series PVA-enhanced (PVA@SiO1.5-hPEA-Gels) were prepared by chemically cross-linking between hydroxyl groups PVA and trimethoxysilyl (TMS-hPEA) water. compress stress PVA@SiO1.5-hPEA-Gels increased significantly with...

ConspectusPatterned surfaces are fundamentally important to physics, chemistry, materials, and biology science, endowing significant functions thus bearing broad fantastic applications whether in natural or man-made events. Among the various methods for patterning surfaces, wrinkling buckling offers a powerful alternative prepare surface patterns because of its spontaneous nature, versatility, easy preparation large-scale, capability be responsive stimuli. In particular, patterned with...

A facile and robust strategy to produce a reversible wrinkle pattern is presented by controlling dynamic D-A reaction between furan maleimide. The smart surface with highly morphology tunable adhesion, wettability, self-healing, transparency realized the thermoreversible generation erasure of pattern, which might find broad applications in functional intelligent materials properties that can be tuned on-demand without altering material's intrinsic properties.

Devising energy-efficient strategies for the depolymerization of plastics and recovery their structural components in high yield purity is key to a circular economy. Here, we report case study which demonstrate that vinylogous urethane (VU) vitrimers synthesized from bis-polyethylene glycol acetoacetates (aPEG) tris(2-aminoethyl)amine can be degraded by water at moderate temperature with almost quantitative (≈98 %) aPEG. The rate controlled temperature, amount water, molecular weight aPEG,...

Abstract Polymers are ideal materials for information printing and storage encryption through multiple channels. In this study, the visible color, fluorescent, stress‐color combined to print information. Stress‐color is achieved using an acid‐tunable dynamic reaction between a β‐diketone amine group via light‐induced transformation of spiropyran (SP), which also directly prints color The fluorescent patterns stable SP released from enaminone structure. By achieving coding, data further...

Abstract A novel hybrid resist for UV nanoimprint lithography (UV‐NIL) based on the thiol–ene photopolymerization is presented. Our system comprises mercaptopropyl polyhedral oligomeric silsesquioxane and benzyl methacrylate, with trimethylolpropane trimethacrylate as crosslinker. The obtained resists possess a variety of characteristics desirable UV‐NIL, such low viscosity (6.1–25 cP), bulk‐volumetric shrinkage (5.3%), high Young's modulus (0.9–5.2 GPa), thermal stability, excellent...

Significance Camouflage has broad applications in nature, engineering, and the military. This work demonstrated a feasible strategy for adaptive visible camouflage based on light-driven dynamic surface wrinkles. The multiwavelength light–driven wrinkles photothermal effect–induced thermal expansion of substrate could tune light scattering visibility film interference color. Consequently, color captured by observer switch between exposure state that is distinguished from background similar to...

Abstract The host–guest interaction between polymer nanoparticles and guest molecules plays a key role in fields such as controlled drug delivery, separation, nanosensors. To understand this interaction, series of hybrid (SiO 1.5 ‐hPEA NPs) are designed prepared based on hyperbranched poly(ether amine) (hPEA) with the different hydrophobicity functional groups. Their adsorption behavior to twelve hydrophilic dyes aqueous solution is studied. core‐crosslinked by direct dispersion hPEA...

We herein report a novel hybrid hydrogel (SiO1.5-hPEAs-Gels), which was fabricated by the direct hydrolysis of trimethoxysilyl groups containing hyperbranched poly(ether amine)s (TMS-hPEAs) in water. The adsorption behaviors guest molecule dyes obtained SiO1.5-hPEAs-Gels were investigated systematically. process found to follow pseudo-first-order kinetics at initial stage, but followed pseudo-second-order later stages. exhibited quick such as Ponceau S (PS), Rose Bengal (RB), Neutral Red...

We demonstrate here a series of hybrid materials based on thiol-contained polyhedral oligomeric silsesquioxane (POSS-OA/SH) and acrylated caster oil (ACO), which can be photo-cured through "thiol-ene" reaction. The fast photo-crosslinking reaction between POSS ACO was traced by FT-IR, is insensitive to oxygen gas. Compared with the pure ACO, component POSS-OA/SH exhibited much faster speed upon exposure UV-light. obtained were transparent visible light no obvious phase-separation observed....

We here designed and prepared a multi-responsive microgel (hPEA-mGel) fabricated through the co-assembly of hyperbranched poly(ether amine) pentaerythritol tetra(3-mercaptopropionate) (PTMP) in aqueous solution, followed by thiol–ene photo-click crosslinking. The obtained hPEA-mGel is uniform-sized particles with 250 nm diameter low polydispersity index (PDI = 0.15), exhibited sharp responses to temperature pH. interaction between host series fluorescein dyes was investigated. strong...

We here demonstrate a facile approach of one-step to obtain the complex wrinkling patterned surface photocuring coating by using thiol and fluorocarbon chains containing POSS (F2-POSS-SH6) as reactive nanoadditive. F2-POSS-SH6 can self-assemble into top layer UV-curing liquid resin. As result, mismatch shrinkage caused different types photo-cross-linking reaction between bulk leads formation pattern. The characteristic wavelength (λ) amplitude (A) are linearly dependent on concentration...

We reported the preparation of uniform square nanosheets with tunable size by living crystallization-driven 2D self-assembly hyperbranched poly(ether amine) capped heptaisobutyl polyhedral oligomeric silsesquioxane (POSS). The HP1 containing both anthracene (AN) and POSS moieties in a solution 1,4-dioxane water can be fragmented after melting upon heating regenerated recrystallization moieties, which was confirmed microdifferential scanning calorimetry (μDSC) dynamic light scattering (DLS)...

Abstract Harnessing the self‐organization of soft materials to make complex, well‐ordered surface patterns in a noninvasive manner is challenging. The wrinkling thin films provides compelling strategy achieve this. Despite much attention, however, simple, single‐step, reversible method that gives rise controlled, two‐dimensional (2D) ordered, continuous, and discontinuous has proven be elusive. Here novel, robust described this using an ultraviolet‐light‐sensitive anthracene‐containing...

The reversible surface patterns with fluorescence and topography can possibly enable information recording reading provide an important alternative to realize the higher security. We demonstrated a dual-pattern simultaneously responsive using anthracene (AN) naphthalene diimide (NDI) containing copolymer (PAN-NDI-BA) as skin layer, in which photodimerization of AN control cross-linking CT interaction between NDI. Upon irradiation UV light thermal treatment, resulting pattern assumes change...

To avoid the losses caused by counterfeit commodity, documents and currency, various anticounterfeiting strategies have aroused an intensive interest been developed rapidly; however, obtaining unclonable technology that is sufficiently adaptable for industry-suitable authentication still a challenge. Here, we report facile yet effective strategy utilizing pattern memory surface with NIR-driven dynamic wrinkles, which can be used as biomimetic fingerprints. The randomness unpredictability of...

Regulating existing micro and nano wrinkle structures into desired configurations is urgently necessary yet remains challenging, especially modulating direction location on demand. In this work, we propose a novel light-controlled strategy for surface wrinkles, which can dynamically precisely regulate all basic characteristics of including wavelength, amplitude, (

Abstract Optical grating devices based on micro/nanostructured functional surfaces are widely employed to precisely manipulate light propagation, which is significant for information technologies, optical data storage, and sensors. However, the parameters of rigid periodic structures difficult tune after manufacturing, seriously limits their capacity in situ manipulation. Here, a novel anti‐eavesdropping, anti‐damage, anti‐tamper dynamic encryption strategy reported via tunable mechanical...

Abstract Infrared upconversion devices (UCDs) enable NIR imaging without array and readout circuits, making them desirable for portable sensor, monitoring. However, the exorbitant cost difficulties in fabrication associated with vacuum‐deposited materials, which are usually employed high‐performance UCDs, restrict their application flexible‐stretchable systems. Here, a solution‐processed device (s‐UCD), is composed of detector emitter, high conversion efficiency low turn‐on voltage achieved...