Abstract Due to the intrinsic porosity and photo‐regulated pore environment, azobenzene (Azo) functionalized covalent organic frameworks (COFs) show great potential for contaminant removal. However, stability degree of functionality COFs greatly affect subsequent adsorption capacity selectivity. Herein, a highly stable thiazole‐linked COF containing phenolic hydroxyl groups (OH‐COF) is constructed by using 4,4′,4′‐(1,3,5‐triazine‐2,4,6‐triyl)trianiline 2,5‐dihydroxyterephthalaldehyde in...

Abstract Covalent organic frameworks (COFs) containing azobenzene building blocks carry great potential for use in intelligent storage, separation, chemical sensing, and catalysis due to their intriguing photo‐responsiveness. However, units are often exploited as the linkers form framework of COFs, thereby restricting molecular motion photoisomerization. Herein, a simple yet robust template‐free solvothermal strategy is reported yield azobenzene‐dangled COFs (Azo‐COFs) with moieties...

N-substituted glycine N-thiocarboxyanhydrides (NTAs) are alternative monomers to prepare polypeptoids with large-scale producing potential compared the corresponding N-carboxyanhydrides (NCAs) due their easily synthetic approach and stability during purification storage. Novel monomer N-butylglycine NTA (NBG-NTA) has been synthesized well characterized for first time. Rare earth borohydrides [RE(BH4)3(THF)3, RE = Sc, Y, La, Nd, Dy, Lu] have applied in polymerization of sarcosine (Sar-NTA)...

Abstract Stimuli‐responsive photonic crystals (PCs) have attracted increasing attentions owing to the unique optical feature in regulating propagation of light and tunable structural colors response external stimuli, emerging application potential on diverse fields. However, development stimuli‐responsive PCs with wide visible range, broad shift bandgaps, adjustable responsive rates for counterfeiting remains challenging. Herein, a simple strategy preparation photo‐responsive...

Poly(sarcosine-<italic>r-N</italic>-butylglycine) random copolymers with various MWs and compositions are synthesized from NTA monomers, which exhibit tunable <italic>T</italic>_cps in aqueous solutions.

α-Amino acid N-thiocarboxyanhydrides (NTAs) are promising cyclic monomers to synthesize polypeptides and polypeptoids via controlled ring-opening polymerizations. Superior N-carboxyanhydrides requiring protection on hydroxyl groups, NTAs able tolerate such nucleophiles. In this work, we report the synthesis of NTA containing unprotected phenolic groups 3,4-dihydroxy-l-phenylalanine (DOPA) l-tyrosine (Tyr). Their ROPs sequential copolymerizations with polysarcosine (PSar) yield PDOPA, PTyr,...

Biocompatible amphiphilic block copolymers composed of polysarcosine (PSar) and poly(ε-caprolactone) (PCL) were synthesized using ring-opening polymerization sarcosine N-thiocarboxyanhydride initiated by oxyamine-ended PCL characterized NMR, SEC, DSC. Self-assembling two triblock PSar8-b-PCL28-b-PSar8 (CS7) PSar16-b-PCL40-b-PSar16 (CS10) in dilute solution was studied detail toward polymersome formation thin-film hydration nanoprecipitation techniques. A few giant vesicles obtained from both...

Amino acid N ‐thiocarboxyanhydride (NTA), the thioanalog of ‐carboxyanhydride (NCA), is much more stable than NCA against moisture and heat. The convenient monomer synthesis without rigorous anhydrous requirements makes ring‐opening polymerization NTA a competitive alternative to prepare polypeptoid‐containing materials with potential large‐scale production. Polysarcosines (PSars) high yields (&gt;90%) low polydispersities (&lt;1.2) are synthesized from sarcosine (Sar‐NTA) at 60 °C initiated...

Stimuli-responsive polymersomes formed by amphiphilic block copolymers have attracted substantial attention as smart and robust containers for drug delivery nano/microreactors. Biosourced diblock copolypeptoids were developed that can self-assemble into oxidation-responsive unilamellar vesicles. These vesicles burst under the action of reactive oxygen species which be hydrogen peroxide or singlet produced light-activation a photosensitizer with spatiotemporal control. Polysarcosine (PSar,...

Imposing chirality to supramolecular architectures is an important step forward toward understanding and utilization of chiral nanomaterials. This article reports the self-assembly amphiphilic alternating copolymers poly(binaphthyl azobenzene-alt-hexaethylene glycol) (P(BNPAzo-alt-EG6)) into helical rods. Unlike conventional assembly largely through intermolecular organization, intrachain stacking units along main chain single molecular micelles with amplified axial binaphthyl key formation...

N-Carboxyanhydride (NCA) polymerization cannot tolerate nucleophilic groups that have the ability of initiation, e.g., hydroxyl group. In contrast, N-thiocarboxyanhydride (NTA) is a much more stable monomer to them. this contribution, we investigate aminoalcohols including 2-amino-1-ethanol (AE), 3-amino-1-propanol (AP), 4-aminomethylbenzyl alcohol (AMB), 6-amino-1-hexanol (AH), and 12-amino-1-dodecanol (AD) as initiators for ring-opening N-substituted glycine (NNTA) prepare...

ABSTRACT N ‐Substituted glycine ‐thiocarboxyanhydrides (NNTAs) are promising cyclic monomers to synthesize polypeptoids with the advantages of easier preparation and higher stability during purification storage than ‐substituted ‐carboxyanhydrides (NNCAs). NNTAs were commonly considered too stable polymerize for their low reactivity. In this contribution, we report controlled polymerizations ‐ethylglycine NTA (NEG‐NTA) sarcosine (Sar‐NTA) using primary amines as initiator under proper...

Because of the high reactivity, N-carboxyanhydride (NCA) can be initiated by thiol group. On contrary, N-thiocarboxyanhydride (NTA) is more stable and able to tolerate it. Herein, we apply cysteamine as a regioselective initiator for ring-opening polymerization (ROP) N-substituted glycine (NNTA) synthesize well-defined thiol-capped polypeptoids. ROPs sarcosine NTA (Sar-NTA) N-ethylglycine (NEG-NTA) are well controlled when [M]/[I] ≤ 100 with yields (>87.5%) producing polypeptoids designable...

Abstract Hierarchical structures with enhanced performances are of growing importance in many fields, but their preparation suffers from tedious and multistep procedures. There remain challenges to transfer magnify the molecular functions hierarchical pursue more unique applications. Herein, a facile one‐step approach for fabrication assembling amphiphilic copolymers, poly(ethylene glycol)‐ block ‐poly(6‐(4‐(4‐pyridyazo)phenoxy)hexyl methacrylate) (PEG‐ b ‐PAzoPy) controlled morphologies...

Biocompatible polymersomes are prepared from amphiphilic block copolypeptoids with aggregation-induced emission, where the hydrophobic P(TPE-NAG) is a tetraphenylethylene (TPE)-modified poly(N-allylglycine) and hydrophilic polysarcosine. These nanoparticles non-cytotoxic show strong fluorescence emission in aqueous solution.

An azobenzene-based smart superhydrophobic surface undergoes reversible transformations among multiple bioinspired superwetting states through photo-manipulation, demonstrating promising potential on a rewritable platform for droplet transportation.

Polypeptoids are noticeable biological materials due to their versatile properties and various applications in drug delivery, surface modification, self-assembly, etc. N-Substituted glycine N-thiocarboxyanhydrides (NNTAs) more stable monomers than the corresponding N-carboxyanhydrides (NNCAs) enable one prepare polypeptoids via ring-opening polymerization even presence of water. However, larger amounts water (>10,000 ppm) cause inhibition polymerization. Herein, we discover that during...