Abstract The self‐asembly of block copolymers is a promising platform for the “bottom‐up” fabrication nanostructured materials and devices. This review covers some advances made in this field from laboratory setting to applications where are use.

Improving membrane durability associated with fouling and chlorine resistance remains one of the major challenges in desalination technology. Here, we demonstrate that attractive features graphene oxide (GO) nanosheets such as high hydrophilicity, chemical robustness, ultrafast water permeation can be harnessed for a dual-action barrier coating layer enhances to both chlorine-induced degradation polyamide (PA) thin-film composite (TFC) membranes while preserving their separation performance....

Molecular layer-by-layer (mLbL) assembled thin-film composite membranes fabricated by alternating deposition of reactive monomers on porous supports exhibit both improved salt rejection and enhanced water flux compared to traditional reverse osmosis prepared interfacial polymerization. Additionally, the well-controlled structures achieved mLbL further lead antifouling performance. As a service our authors readers, this journal provides supporting information supplied authors. Such materials...

A strategy for controlling the location of gold nanoparticles within block copolymer domains through varying surface coverage by end-attached polymer ligands is described. Gold coated short thiol end functional polystyrene homopolymers (PS-SH) (Mn = 3.4 kg/mol) are incorporated into a poly(styrene-b-2-vinylpyridine) diblock template (PS-b-P2VP) 196 kg/mol), P2VP which has more favorable interaction with bare particle than does PS block. The areal chain density PS-SH on particles varied...

The self-assembly of triblock copolymers poly(ethylene oxide-b-methyl methacrylate-b-styrene) (PEO-b-PMMA-b-PS), where PS is the major component and PMMA PEO are minor components, provides a robust route to highly ordered, nanoporous arrays with cylindrical pores 10−15 nm that show promise in block copolymer lithography. These ABC were synthesized by controlled living radical polymerization, after solvent annealing, thin films showing defect-free microdomains obtained. key successful...

An asymmetric poly(styrene-b-isoprene) diblock copolymer with block molecular weights of 13 000 and 71 000 g/mol, respectively, was dissolved at 1 vol % in a series solvents varying selectivity for styrene:  dibuthyl phthalate (DBP), diethyl (DEP), dimethyl (DMP). The degree solvent adjusted by mixing DBP/DEP DEP/DMP various proportions. With increasing selectivity, the predominant micellar shape changes from spheres to cylinders vesicles, reflecting changing interfacial curvature. detailed...

A simple strategy to tailor the surface of nanoparticles for their specific adsorption and localization at block copolymer interfaces was explored. Gold coated by a mixture low molecular weight thiol end-functional polystyrene (PS-SH) (Mn = 1.5 3.4 kg/mol) poly(2-vinylpyridine) homopolymers (P2VP-SH) 3.0 were incorporated into lamellar poly(styrene-b-2-vinylpyridine) diblock (PS-b-P2VP) 196 kg/mol). library with varying PS P2VP compositions (FPS) high polymer ligand areal chain densities...

A new crosslinking system based on azide-functionalized random copolymers has been defined for the preparation of substrates with controllable surface interactions. The azido group is used both thermal- and photo-crosslinking, which found to be very efficient. Furthermore, use UV irradiation enables patterned surfaces by conventional photolithographic techniques, combining "bottom-up" self-assembly block copolymer strategies traditional "top-down" methods.

Polystyrene-coated gold nanoparticles (molecular weight (Mn) of PS ∼1300 g/mol, average particle diameter d (core + shell) ∼ 9.2 ± 2.2 nm, corresponding to a high areal chain density PS) are incorporated into symmetric poly(styrene-b-2 vinylpyridine) diblock copolymers with total Mn 60 000−380 000 g/mol at volume fractions 0.07−0.32. For all and filling examined, particles centralized in the domains Gaussian distribution profiles. The width generally decreases as domain size or fraction...

Various biophysical and biochemical factors are important for determining the fate of neural stem cells (NSCs). Among signals, topographical stimulation by micro/nanopatterns has been applied to control NSC differentiation. In this study, we developed a hierarchically patterned substrate (HPS) platform that can synergistically enhance differentiation human NSCs (hNSCs) simultaneously providing microscale nanoscale spatial controls facilitate alignment cytoskeleton formation focal adhesions....

Abstract Layered lithium–nickel–cobalt–manganese oxide (NCM) materials have emerged as promising alternative cathode owing to their high energy density and electrochemical stability. Although reversible capacity has been achieved for Ni‐rich NCM when charged beyond 4.2 V versus Li + /Li, full lithium utilization is hindered by the pronounced structural degradation electrolyte decomposition. Herein, unexpected realization of sustained working voltage well improved performance upon cycling at...

Independent control of the extrinsic and intrinsic properties polyamide (PA) selective layer is essential for designing thin-film composite (TFC) membranes with performance characteristics required water purification applications besides seawater desalination. Current commercial TFC fabricated via well-established interfacial polymerization (IP) approach yield materials that are far from ideal because their thickness, surface roughness, polymer chemistry, network structure cannot be...

The directed assembly of block copolymer nanostructures with large periods exceeding 100 nm remains challenging because the translational ordering long-chained is hindered by its very low chain mobility. Using a solvent-vapor annealing process neutral solvent, which was sequentially combined thermal process, we demonstrate rapid evolution perpendicularly oriented lamellar morphology in high molecular weight films on substrate. synergy topographically patterned substrate facilitated...

Micropatterns with a high stability, definition, and resolution are an absolute requirement in advanced display technology. Herein, patternable perovskite nanocrystals (PNCs) excellent stability were prepared by exchanging pristine ligands multifunctional polymer ligands, poly(2-cinnamoyloxyethyl methacrylate). The backbone contains cinnamoyl group that has been widely employed as photo-cross-linker under 365 nm UV irradiation. Also, the terminal is readily adjustable among NH3Cl, NH3Br,...

Abstract The production of elemental sulfur from petroleum refining has created a technological opportunity to increase the valorization by creation high‐performance based plastics with improved thermomechanical properties, elasticity and flame retardancy. We report on synthetic polymerization methodology prepare first example segmented multi‐block polyurethanes (SPUs) thermoplastic elastomers that incorporate an appreciable amount into final target material. This approach applied both...

Abstract In contrast to noteworthy advancements in cathode active materials for lithium‐ion batteries, the development of binders has been relatively slow. This issue is more serious high‐mass‐loading cathodes, which are preferentially used as a facile approach enable high‐energy‐density Li‐ion batteries. Here, amphiphilic bottlebrush polymers (BBPs) designed new class binder material. Using poly (acrylic acid) (PAA) sidechain, BBPs synthesized through ring‐opening metathesis polymerization....

A polymerization methodology is reported using sulfur monochloride (S2Cl2) as an alternative feedstock for polymeric materials. S2Cl2 inexpensive petrochemical derived from elemental (S8) but has numerous advantages a reactive monomer vs S8. This new process, termed sulfenyl chloride inverse vulcanization, exploits the high reactivity and miscibility of with broad range allylic monomers to prepare soluble, molar-mass linear polymers, segmented block copolymers, crosslinked thermosets greater...

Solvent cast diblock and triblock copolymer films of poly(ethylene oxide-b-styrene) (PEO-b-PS) oxide-b-methyl methacrylate-b-styrene) (PEO-b-PMMA-b-PS), with cylindrical microdomains PEO or PMMA−PEO, have a high degree lateral ordering after solvent annealing. The relative humidity the vapor during annealing has been shown to play an important role in achieving this order. After under PEO-b-PMMA-b-PS having lamellar morphology bulk develops hexagonal array depressed domains on film surface...

Quantum dot (QD)-based displays call for nondestructive, high-throughput, and high-resolution patterning techniques with micrometer precision. In particular, self-emissive QD-based demand fine patterns of conductive QD films uniform thickness at the nanometer scale. To meet these requirements, we functionalized QDs photopatternable semiconducting poly(vinyltriphenylamine-random-azidostyrene) (PTPA-N3-SH) ligands in which hole-transporting triphenylamine UV-crosslinkable azide (−N3) groups...

Abstract Endowing quantum dots (QDs) with robustness and durability have been one of the most important issues in this field, since major limitations QDs practical applications are their thermal oxidative instabilities. In work, we propose a facile effective passivation method to enhance photochemical stability using polymeric double shell structures from thiol-terminated poly(methyl methacrylate- b -glycidyl methacrylate) (P(MMA- -GMA)-SH) block copolymer ligands. To generate densely...

In this study, a one-step process to fabricate "Janus"-structured nanocomposites with iron oxide (Fe3O4) nanoparticles (Fe3O4 NPs) and polydopamine (PDA) on each side of graphene (GO) nanosheet using the Langmuir–Schaefer technique has been proposed. The Fe3O4 NPs–GO hybrid is used as high-capacity active material, while PDA added binder due its unique wet-resistant adhesive property. transmission electron microscopy image shows superlattice-like out-of-plane section multilayered...

The molecular weights and chain rigidities of block copolymers can strongly influence their self-assembly behavior, particularly when the are under confinement. We investigate bottlebrush (BBCPs) confined in evaporative emulsions with varying weights. A series symmetric BBCPs, where polystyrene (PS) polylactide (PLA) side-chains grafted onto a polynorbornene (PNB) backbone, synthesized degrees polymerization PNB (NPNB) ranging from 100 to 300. Morphological transitions onion-like concentric...

This review article focuses on recent advances of bottlebrush copolymers prepared by a ring-opening metathesis polymerization, from synthesis efforts to properties and applications.

Block copolymers constitute a class of self-assembling macromolecules that offer remarkable flexibility for controlling nanostructure, both in discrete objects and bulk materials. copolymer micelles may be formed with multiple compartments by judicious choice ingredients an ABC triblock copolymer. For example, we have shown poly(ethylene oxide-b-styrene-b-fluorinated butadiene) assembles dilute aqueous solution into large, flat core/shell/corona disks, the fluorine containing block forming...