Category: 135529-02-1

Yin, Lu published the artcileInduction and modulation of supramolecular chirality in side-chain azobenzene polymers through the covalent chiral domino effect, Product Details of C23H28N2O4, the publication is Science China: Chemistry (2021), 64(12), 2105-2110, database is CAplus.

Induction, transfer, and modulation of intriguing supramol. chirality were achieved in a chiral domino-type polymer system using a chiral α-end azobenzene (Azo) moiety as one chiral terminus and achiral Azo repeating units as building blocks. The Azo polymers prepared by atom transfer radical polymerization were imparted with well-controlled chain lengths and a chiral moiety at a well-defined position. One chiral terminus can effectively dictate the helical orientation of the achiral Azo stacks in the aggregation state. The spacer length between the chiral residue and the achiral repeating units dominates the preferred handedness of the side-chain Azo stacks. For instance, the R-configuration moiety with a short alkyl chain (with 0, 2, and 3 carbons) induces right-handed supramol. chirality, whereas those with long alkyl chains (with 4, 5, and 6 carbons) induce the opposite helical orientation of the Azo units. Moreover, the chiral regulation of polymer aggregates is successfully achieved using the unique photoisomerization transition of the Azo chromophore and the heat-assisted reassembly approach. Chiral induction and chiral-to-achiral communication are further verified via theor. simulations.

Science China: Chemistry published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C18H17NO8, Product Details of C23H28N2O4.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Tao, Xiangdong published the artcileSynthesis and characterization of well-defined thermo- and light-responsive diblock copolymers by atom transfer radical polymerization and click chemistry, Quality Control of 135529-02-1, the publication is Polymer Chemistry (2011), 2(9), 2068-2073, database is CAplus.

We synthesized a series of well-defined, stimuli-responsive diblock copolymers composed of poly(N-isopropylacrylamide) and poly(6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate) by atom transfer radical polymerization and click chem. The diblock copolymers were then characterized by NMR spectroscopy, Fourier transform IR spectroscopy, and gel permeation chromatog. When the azobenzene content reached 4.5 mol%, the diblock copolymer became insoluble in water. The aqueous solutions of the polymers exhibited a lower critical solution temperature (LCST) that depended on the amount of incorporated azobenzene. Higher LCSTs were observed after UV irradiation, with a maximum difference of 4.1 °C for the copolymer containing 1.4 mol% azobenzene groups. The photochem. properties of the polymer were also studied by UV-vis spectroscopy.

Polymer Chemistry published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C7H12ClNO, Quality Control of 135529-02-1.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Tang, Xinde published the artcileControlled grafting of ethyl cellulose with azobenzene-containing polymethacrylates via atom transfer radical polymerization, HPLC of Formula: 135529-02-1, the publication is Journal of Polymer Science, Part A: Polymer Chemistry (2007), 45(9), 1653-1660, database is CAplus.

Graft copolymers of Et cellulose with azobenzene-containing polymethacrylates were synthesized through atom transfer radical polymerization (ATRP). The residual hydroxyl groups on Et cellulose were first esterified with 2-bromoisobutyryl bromide to yield 2-bromoisobutyryloxy groups, which was then used to initiate the polymerization of 6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate (MMAzo) in the presence of CuBr/N,N,N’,N”,N”-pentamethylenetriamine (PMDETA) as catalyst and anisole as solvent. The graft copolymers were characterized by gel permeation chromatog. (GPC) and ¹H-NMR. The mol. weights of the graft copolymers increased relatively to the macroinitiator, and the polydispersities were narrow. The thermal and liquid crystalline property of the graft copolymers were studied by differential scanning calorimeter (DSC) and polarizing optical microscope (POM). Photoresponsive property was studied under the irradiation of UV-Vis light in THF solution The graft copolymers have potential applications, including sensors and optical materials.

Journal of Polymer Science, Part A: Polymer Chemistry published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C5H7NO, HPLC of Formula: 135529-02-1.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Tang, Xinde published the artcileEffect of the terminal substituent of azobenzene on the properties of ABA triblock copolymers via atom transfer radical polymerization, Safety of 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, the publication is Journal of Polymer Science, Part A: Polymer Chemistry (2007), 45(22), 5190-5198, database is CAplus.

The effect of the terminal substituent of azobenzene on the properties of ABA triblock copolymers was studied. For this study, three kinds of azobenzene-containing monomers with different terminal substituents-6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate, 6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate, and 6-[4-(4-nitrophenylazo)phenoxy]hexyl methacrylate-were used to synthesize ABA triblock copolymers PMMAzo₂₅-PEG₁₃-PMMAzo₂₅/PMMAzo₁₂-PEG₁₃-PMMAzo₁₂, PEMAzo₁₄-PEG₁₃-PEMAzo₁₄, and PNMAzo₁₄-PEG₁₃-PNMAzo₁₄, resp., by atom transfer radical polymerization (PMMAzo is poly{6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate}, PEMAzo is poly{6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate}, and PNMAzo is poly{6-[4-(4-nitrophenylazo)phenoxy]hexyl methacrylate}). These copolymers were characterized with ¹H NMR spectroscopy and gel permeation chromatog. and exhibited controlled mol. weights and narrow mol. weight distributions. Differential scanning calorimetry and polarizing optical microscopy showed that these copolymers had mesophases. PMMAzo₂₅-PEG₁₃-PMMAzo₂₅ and PMMAzo₁₂-PEG₁₃-PMMAzo₁₂ had a smectic mesophase and a nematic mesophase, whereas both PEMAzo₁₄-PEG₁₃-PEMAzo₁₄ and PNMAzo₁₄-PEG₁₃-PNMAzo₁₄ had a nematic mesophase. This demonstrated that the liquid-crystalline properties of these copolymers highly depended on the terminal substituent of azobenzene. The photoresponsive behavior of these copolymers was also studied in THF solutions, and the influence of the terminal substituents attached to azobenzene was studied.

Journal of Polymer Science, Part A: Polymer Chemistry published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C14H18BNO2S, Safety of 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Li, Ming published the artcilePhotochromic holo-cellulose wood-based aerogel grafted azobenzene derivative by SI-ATRP, Synthetic Route of 135529-02-1, the publication is Carbohydrate Polymers (2021), 117736, database is CAplus and MEDLINE.

Wood is actually a natural polymers composite that is easy to process, mainly constituted of cellulose, hemicellulose and lignin. However, most wood-based functional materials are prepared by phys. methods, which undoubtedly limit the application of wood-based materials. Herein, the wood aerogel (WA) was obtained from wood by delignification and freezing dried. The WA then was fabricated into an unexpected photochromic wood aerogel (PWA) via surface-initiated atom transfer radical polymerization (SI-ATRP) covalently grafting poly{6-[4-(4-methoxyphenyl-azo)phenoxy]hexyl methacrylate} (PMAZOM). Both WA and PWA showed good compression resilience. The hydrophobicity of PWA was obviously enhanced because of the surface modification. The color of PWA can change from yellow to orange-red after being irradiated by UV light for 30 s. The color of sample can be reversibly changed to yellow under sunlight for 200 s. The lightweight and photosensitive wood aerogel is potential to apply for optical information storage materials and photosensitive devices.

Carbohydrate Polymers published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C23H28N2O4, Synthetic Route of 135529-02-1.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wang, Yingying published the artcileSelf-assembly and photo-responsive behavior of novel ABC₂-type block copolymers containing azobenzene moieties, Category: esters-buliding-blocks, the publication is Soft Matter (2012), 8(11), 3131-3138, database is CAplus.

The self-assembly behavior and photo-responsive properties of novel azobenzene based copolymers poly(ethylene oxide) monomethyl ether-block-polystyrene-block-{poly[6-(4-methoxy-azobenzene-4′-oxy)hexyl methacrylate]}₂ [MPEO-b-PS-b-(PMMAZO)₂] with various block lengths of PMMAZO segments in aqueous media were studied by means of transmission electron microscopy (TEM), SEM, laser light scattering (LLS) and UV-Vis spectrophotometry. It was found that the critical water content for the aggregate formation increases with the PMMAZO weight fraction. By tailoring the mol. structure and copolymer concentration, various self-assembled aggregates were obtained. At a lower concentration, all the copolymers self-assembled into simple vesicles. With increasing the polymer concentration, large compound vesicles were formed. The photo-sensitive properties of the formed aggregates were also studied. Upon irradiation with a polarized light, the aggregates were elongated. Large compound vesicles were found to deform into compact spindles with a very large axial ratio.

Soft Matter published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C18H15N3O3, Category: esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Xue, Xiaoqiang published the artcilePreparation and characterization of thermal- and light-triggered self-healing azobenzene polymer, Recommanded Product: 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, the publication is Polymers for Advanced Technologies (2022), 33(4), 1328-1340, database is CAplus.

Both temperature- and light-triggered self-healing azobenzene polymer was successfully synthesized via radical copolymerization of 4-(furan-maleimide ethyl) Me methacrylate (MMA-FMI), 4′-(oxyhexyl methacrylate)-4-(oxyfuran-2-carbomethoxy) azobenzene (MMA-FAzo) and 6-(4′-methoxy-4-oxyazobenzene)-hexyl methacrylate at 50°C. The structure of the polymer was characterized by proton NMR (¹H-NMR) spectroscopy, Fourier transform IR spectroscopy, and gel permeation chromatog. Interestingly, furan and maleimide thermally reversible groups were introduced into the polymer. After the furan rings on the MMA-FMI were removed at high temperatures, the exposed maleimide groups were further added with the furan rings on the MMA-FAzo to form a crosslinked network. The crosslinked polymer film was still soluble in the anisole after heating, which could further illustrate the thermal reversibility of the polymer film and realized the recyclability and reworkability of the side-chain azobenzene polymer. ¹H-NMR could prove that the crosslinked polymer was completely decrosslinked and the polymer was thermoreversible. UV-visible (UV-Vis) absorption spectra showed rapid photoisomerization of the polymer, and surface-relief grating formed on the crosslinked PAzo film was also investigated using illumination from a linearly polarized Kr⁺ laser beam. The surface modulation depth and grating spacing were about 149 nm, and 1.7μm, resp. What is more, the polarized light microscopy showed that the crosslinked polymer film could be self-repaired under the combined action of UV light and heating.

Polymers for Advanced Technologies published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C12H9N3O4, Recommanded Product: 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Xie, He-Lou published the artcileControlling domain orientation of liquid crystalline block copolymer in thin films through tuning mesogenic chemical structures, Related Products of esters-buliding-blocks, the publication is Journal of Polymer Science, Part B: Polymer Physics (2017), 55(6), 532-541, database is CAplus.

Controlling the macroscopic orientation of nanoscale periodic structures of amphiphilic liquid crystalline block copolymers (LC BCPs) is important to a variety of tech. applications (e.g., lithium conducting polymer electrolytes). To study LC BCP domain orientation, a series of LC BCPs containing a poly(ethylene oxide) (PEO) block as a conventional hydrophilic coil block and LC blocks containing azobenzene mesogens is designed and synthesized. LC ordering in thin films of the BCP leads to the formation of highly ordered, microphase-separated nanostructures, with hexagonally arranged PEO cylinders. Substitution on the tail of the azobenzene mesogen is shown to control the orientation of the PEO cylinders. When the substitution on the mesogenic tails is an alkyl chain, the PEO cylinders have a perpendicular orientation to the substrate surface, provided the thin film is above a critical thickness value. In contrast, when the substitution on the mesogenic tails has an ether group the PEO cylinders assemble parallel to the substrate surface regardless of the film thickness value. © 2017 Wiley Periodicals, Inc.J. Polym. Sci., Part B: Polym.Phys. 2017.

Journal of Polymer Science, Part B: Polymer Physics published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C15H21BO2, Related Products of esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Qiu, Nannan published the artcileA photo- and thermo-responsive star-shaped diblock copolymer with a porphyrin core prepared via consecutive ATRPs, Safety of 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, the publication is RSC Advances (2016), 6(53), 47912-47918, database is CAplus.

A star-shaped and diblock copolymer poly(6-[4-(4-methoxyphenylazo)phenoxy]hexylmethacrylate)s-b-poly(N-isopropylacrylamide)s with a zinc-porphyrin core (PAzo-b-PNIPAM) is synthesized via consecutive atom transfer radical polymerizations (ATRPs). The synthesis involves the preparation of the intermediate poly(6-[4-(4-methoxyphenylazo)phenoxy]hexylmethacrylate) with a zinc-porphyrin core (por-PAzo) via ATRP, and then por-PAzo is used as a macroinitiator to polymerize N-isopropylacrylamide (NIPAM) via ATRP to gain PAzo-b-PNIPAM. The structures of the target products are characterized by FT-IR, ¹H NMR and UV-vis spectra, and the polydispersity index (PDI) indicates that the mol. weight distribution is narrow and the polymerization is well controlled. Furthermore, the photo- and thermo-responsive properties are also investigated in detail, which demonstrate that the star-shaped diblock copolymer PAzo-b-PNIPAM has a potential application in targeted photodynamic therapy and photo-electro informational storage.

RSC Advances published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C23H28N2O4, Safety of 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zang, Minghui published the artcileStudy on the synthesis, self-assembly and responsive behavior of azobenzene triblock copolymers, COA of Formula: C23H28N2O4, the publication is Zhongguo Keji Lunwen (2014), 9(6), 648-653, database is CAplus.

A new triblock copolymer poly(ethylene oxide)monomethyl ether-b-poly(acrylic aid)-b-poly[6-(4-methoxy-azobenzene-4′-oxy)hexyl methylacrylic acid] was synthesized by the atom transfer radical polymerization (ATRP) method. The self-assembly behaviors in aqueous media, pH value and photo-sensitive properties of this copolymer were studied by the means of transmission electron microscopy (TEM), SEM (SEM), laser light scattering (LLS) and UV-Vis spectrophotometer. It was found that the copolymer could self-assemble into vesicle structure. With decreasing the pH value, the particle size of the micelles increased sharply obviously bigger when pH<3.4; however, there was not significant change for the particle size of micelles when pH>3.4. Under the irradiation of polarized light, the aggregates were elongated with increasing the irradiation time.

Zhongguo Keji Lunwen published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C14H28O5S, COA of Formula: C23H28N2O4.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics