Category: 71195-85-2

Liu, Meina; Miao, Dengyun; Wang, Xingyou; Wang, Caiyun; Deng, Wei published the artcile< Precise synthesis of heterogeneous glycopolymers with well-defined saccharide motifs in the side chain via post-polymerization modification and recognition with lectin>, Recommanded Product: Perfluorophenyl acrylate, the main research area is heterogeneous glycopolymer post polymerization modification property.

Heterogeneous glycopolymers with different sugar units in the side chain have been receiving considerable attention due to their potential properties in enhancing mol. recognition abilities toward a specific receptor, yet there are limited synthetic approaches to introduce different sugar motifs into the glycopolymer backbone. Herein, a series of heterogeneous glycopolymers consisting of different sugar units in the side chains were synthesized by post-polymerization modification of activated PFPA ester precursor polymers. The functionalized amines bearing two different sugar motifs have been synthesized by gradient CuAAC reaction, which could serve as a platform for achieving heterogeneous sugar units with functional control in concise steps. Isothermal titration calorimetry (ITC) measurements of the obtained glycopolymers with Con A indicated that the heterogeneous glycopolymers, poly(Man-å°¾Glu-OH) and poly(Man-å°¾Ga-OH) bearing ä¼?D-mannose and other non-binding å°?Glucose or å°?Galatose units, show higher affinities toward Con A in comparison to monoglycopolymer poly(Man-Alkyne-OH) in which the non-binding sugar motifs was substituted with non-sugar unit due to synergistic effects of non-binding sugar units. Moreover, this work allows for precise fabrication of a broad variety of glycopolymers in which it significantly broadens the library of accessible polymer structures, either homogeneous or heterogeneous glycopolymers.

Journal of Polymer Science (Hoboken, NJ, United States) published new progress about Click chemistry. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Recommanded Product: Perfluorophenyl acrylate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Zhang, Yefeng; Liu, Peng; Majonis, Daniel; Winnik, Mitchell A. published the artcile< Polymeric dipicolylamine based mass tags for mass cytometry>, Computed Properties of 71195-85-2, the main research area is polymeric dipicolylamine mass tag cytometry.

Mass cytometry is an emerging powerful bioanal. technique for high-dimensional single-cell anal. In this technique, cells are stained with metal-isotope-tagged antibodies and are analyzed by an inductively coupled plasma time-of-flight mass spectrometer. While there are more than 100 stable isotopes available in the m/z 75 to 209 detection range of the instrument, only about 50 parameters can be measured per cell because current reagents are metal-chelating polymers with pendant aminocarboxylate chelators that only bind hard metal ions such as the rare earths and Bi3+. Here we describe the synthesis and characterization of a new type of metal-chelating polymer with pendant dipicolylamine chelators suited to binding intermediate to soft metals such as rhenium and platinum. We introduce two different conjugation strategies, a thiol-maleimide reaction that works well for rhenium, and a DBCO-azide click reaction designed to avoid potential complications of Pt and other heavy metals interacting with thiol groups. We show that these polymers can serve as new elemental mass tags for mass cytometry. Antibody-polymer conjugates of CD20 and CD8a prepared by both coupling reactions were employed in conjunction with com. metal-conjugated antibodies for multi-parameter single-cell immunoassays.

Chemical Science published new progress about Antibodies and Immunoglobulins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Computed Properties of 71195-85-2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Geiselhart, Christina M.; Mutlu, Hatice; Tzvetkova, Pavleta; Barner-Kowollik, Christopher published the artcile< Chemiluminescent self-reporting supramolecular transformations on macromolecular scaffolds>, Computed Properties of 71195-85-2, the main research area is macromol scaffold chemiluminescent self reporting supramol transformation.

We introduce the synthesis of a self-reporting system with chemiluminescent output, which is regulated via dynamic supramol. complex formation. By free radical polymerization and subsequent post-polymerization modification, a copolymer decorated with luminol and superbase (i.e. 1,5,7-triaza-bicyclo-[4.4.0]dec-5-ene (TBD)) moieties was synthesized, which in turn forms supramol. host-guest-complexation with randomly methylated β-cyclodextrin. Upon hydrogen peroxide addition, the host-guest-interactions with the self-assembly are broken, and the luminol is oxidized to 3-aminophthalic acid (3-APA). Critically, no addnl. base, buffer or catalyst is required to generate the striking blue light emission of the polymeric system that is detectable by the naked eye. Thus, a fast and easy detection of reactive oxygen species (ROS), such as hydrogen peroxide, under mild conditions is established. The self-reporting system and its chemiluminescent properties are characterized by 1D and 2D NMR spectroscopy (particularly NOESY), dynamic light scattering (DLS), UV/Vis spectroscopy and chemiluminescence (CL) measurements.

Polymer Chemistry published new progress about Chemiluminescence. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Computed Properties of 71195-85-2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Metz, N.; Lange, B.; Zentel, R.; Theato, P. published the artcile< Functionalized nanoparticles using active ester monomers as shell component>, Application of C9H3F5O2, the main research area is core shell polymer monodisperse nanoparticle preparation.

Colloidal photonic crystals were prepared from monodisperse core-shell particles. The shell is formed from a functional monomer, which can perform chem. reactions and the core from a standard monomer, which yields highly monodisperse colloids. It was possible to crystallize artificial opals with excellent optical properties, which have glycidylmethacrylate or different reactive ester monomers as shell material. Reactions on the functional surface of the colloids were carried out, which lead to a significant rise of mech. stability and to a modification of the surface with biomaterials and subsequent growth of a gold layer.

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) published new progress about Core-shell polymers Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Application of C9H3F5O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Blazejewski, Jean-Claude; Hofstraat, Johannes W.; Lequesne, Christelle; Wakselman, Claude; Wiersum, Ulfert E. published the artcile< Halogenoaryl acrylates: preparation, polymerization and optical properties>, Application In Synthesis of 71195-85-2, the main research area is acrylate perhalophenyl perhalopyridyl polymer preparation; optical property perhalophenyl acrylate polymer.

Perhaloaryl and perhalo-4-pyridyl acrylates were obtained and their bulk polymerization was studied. Thermal and optical properties of the polymers are described. The light losses of poly(pentafluorophenyl acrylate) at 1300 and 1500 nm were found to be <0.1 and <0.2 dB/cm, resp. Journal of Fluorine Chemistry published new progress about Fluoropolymers Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Application In Synthesis of 71195-85-2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Obata, Makoto; Masuda, Satoshi; Takahashi, Masaki; Yazaki, Kohei; Hirohara, Shiho published the artcile< Effect of the hydrophobic segment of an amphiphilic block copolymer on micelle formation, zinc phthalocyanine loading, and photodynamic activity>, Electric Literature of 71195-85-2, the main research area is zinc phthalocyanine amphiphilic block copolymer mieclle photodynamic therapy.

A series of amphiphilic block copolymers, i.e., poly(N-substituted acrylamide)-block-poly(polyethylene glycol monomethyl ether acrylate) (P(R)-b-PPEGA) were prepared via RAFT polymerization and post-polymerization modification, and the formation of polymeric micelles as zinc(II) phthalocyanine (ZnPc) carriers for photodynamic therapy was investigated. The effect of hydrophobic R groups at the hydrophobic segment of the block copolymer on critical micelle concentration, hydrodynamic diameters ZnPc-loading ability, and in vitro photocytotoxicity of the polymer micelles was examined The hydrodynamic diameters of the polymer micelles were insensitive to R groups and falls in a narrow range between 23 and 25 nm, whereas those of the ZnPc-loaded micelles vary from 167 to 230 nm depending on the R groups. The Q bands in UV-vis spectra of the ZnPc-loaded micelles indicate that the presence of aromatic R groups results in loose ZnPc aggregates, whereas those containing aliphatic R groups are well packed. The photodynamic effect examined in RGK-1 cell lines was also dependent on the R groups; ZnPc-loaded micelles having aromatic R groups exert higher photodynamic effect than those with aliphatic R groups. These findings indicate that aromatic R groups form larger polymeric micelles with loosely packed ZnPc aggregates, leading to enhanced release of ZnPc in cellular environment and therefore higher photodynamic effect.

European Polymer Journal published new progress about Critical micelle concentration. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Electric Literature of 71195-85-2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Beija, Mariana; Li, Yang; Lowe, Andrew B.; Davis, Thomas P.; Boyer, Cyrille published the artcile< Factors influencing the synthesis and the post-modification of PEGylated pentafluorophenyl acrylate containing copolymers>, Safety of Perfluorophenyl acrylate, the main research area is PEGylated pentafluorophenyl acrylate copolymer RAFT polymerization reaction condition influence.

Copolymerization reactions involving oligoethylene glycol acrylate (OEGA) or diethylene glycol acrylate (DEGA) with pentafluorophenyl acrylate (PFPA) were performed by reversible addition fragmentation transfer (RAFT) polymerization The effect of the reaction conditions on the nucleophilic acyl substitution reactions of PFPA was studied using a model amine (furfuryl amine). The resulting PEG/PFP functional copolymers were then used as scaffolds to produce a library of polymers by reaction with a range of amines.

European Polymer Journal published new progress about Amines Role: RCT (Reactant), RACT (Reactant or Reagent). 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Safety of Perfluorophenyl acrylate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Li, Lin; Xu, Zhongzheng; Sun, Wen; Chen, Jia; Dai, Caili; Yan, Bin; Zeng, Hongbo published the artcile< Bio-inspired membrane with adaptable wettability for smart oil/water separation>, Formula: C9H3F5O2, the main research area is bio inspired membrane adaptable wettability separation.

Adaptable wettability is an intriguing property found in nature yet rare in synthetic materials. Separation membranes bearing this adaptable wettability would be of great significance for practical applications because they can achieve on-demand oil/water separation according to the intrinsic properties of the targeting oil/water mixtures other than external stimuli. Herein, we report one novel type of such smart separation membranes by functionalizing steel mesh membrane with polydopamine (PDA) and an amphiphilic synthetic copolymer via a feasible mussel-inspired dip-coating method. The resulting membrane possesses excellent adaptable wettability and can switch their special oil/water wettability to selectively activate “”water-removing”” or “”oil-removing”” modes for on-demand collection of the desired component (water or oil) from the oily water, i.e., upon pre-wetting the surfaces with water or oil. It exhibits outstanding performance in separating various immiscible oil/water mixtures and miscible surfactant-stabilized emulsions under ambient pressure. Moreover, the bio-inspired membrane can be regenerated and reused facilely through simple washing and drying process without loss in performance. The facile surface functionalization approach developed in this work is universal and substrate-independent, which can be extended to a variety of materials and membrane systems. Such universal surface modification method and the novel membrane developed have great application potential in various engineering and environmental areas including oil spill cleanup and industrial wastewater treatment.

Journal of Membrane Science published new progress about Contact angle. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Formula: C9H3F5O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

zur Borg, Lisa; Domanski, Anna L.; Breivogel, Aaron; Buerger, Mareike; Berger, Ruediger; Heinze, Katja; Zentel, Rudolf published the artcile< Light-induced charge separation in a donor-chromophore-acceptor nanocomposite poly[TPA-Ru(tpy)2]@ZnO>, SDS of cas: 71195-85-2, the main research area is polyvinyltriphenylamine terpyridine ruthenium complex zinc oxide.

The synthesis and characterization of a new donor-chromophore-acceptor system based on poly(vinyltriphenylamine) as the electron donor and a glycine-functionalized bis(2,2′;6′,2”-terpyridine)ruthenium(II) complex acting both as a chromophore and as an anchor group attached to ZnO nanorods as the electron acceptor are described. The TPA-containing block copolymer was synthesized by Reversible Addition Fragmentation Chain Transfer (RAFT) polymerization and the ruthenium complex glycine conjugates prepared by Solid Phase Peptide Synthesis (SPPS) were attached via post-polymerization esterification. GPC, NMR, IR and UV-Visible spectroscopy were used to characterize the multifunctional chromophore-donor polymer. Zinc oxide nanorods were functionalised with the block copolymer by multisite adsorption via the glycine COOH groups. The functionalised nanoparticles were well dispersible in organic solvents. Photoluminescence studies showed a complete quenching of the phosphorescence of the ruthenium chromophore (3MLCT state). Kelvin probe force microscopy (KPFM) was used to confirm that under continuous excitation of the RuII complex (1MLCT) the polymer corona develops a pos. charge and thus efficient charge separation between ZnO and the polymer is achieved.

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about Electron transfer (charge separation). 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, SDS of cas: 71195-85-2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Huang, Jun; Qiu, Xiaoyong; Yan, Bin; Xie, Lei; Yang, Jingqi; Xu, Haolan; Deng, Yonghong; Chen, Lingyun; Wang, Xiaogang; Zeng, Hongbo published the artcile< Robust polymer nanofilms with bioengineering and environmental applications via facile and highly efficient covalent layer-by-layer assembly>, Synthetic Route of 71195-85-2, the main research area is polymer nanofilm bioengineering cell adhesion surface hydrophobicity.

This work reports novel, robust, multifunctional covalent-bonded polymer nanofilms based on highly efficient spin-assisted layer-by-layer (LbL) assembly, with a wide range of engineering and bioengineering applications. An active-ester block copolymer, polypentafluorophenylacrylate-block-polystyrene (PPFPA-b-PS), and an amine-rich polymer, branched polyethyleneimine (PEI), were chosen as model polymers. The as-prepared nanofilms show switchable hydrophobicity with controllable thickness. Nanomech. tests demonstrate that the surface adhesion between the PPFPA-b-PS and PEI layers facilitates excellent film stability under different solvent conditions. Robust and centimeter-scale freestanding nanofilms with good transparency and excellent flexibility could be readily obtained by peeling the films from their silicon substrates without using a sacrifice layer. More importantly, the multi-layer nanofilms containing free pentafluorophenol groups or amine groups can be readily functionalized further to tailor the properties of the films for various applications. As a proof of concept, a multi-layer nanofilm with free ester groups was modified with rhodamine-6G hydrazone and tested as a H+ sensor. The free amine groups in the polymer nanofilms show strong interactions with perfluorooctanoic acid for achieving high surface hydrophobicity. The polymer nanofilms also show exceptional tunable cell-attachment behavior by switching the outmost layer between PPFPA-b-PS and PEI, demonstrating great potential for biomedical applications.

Journal of Materials Chemistry B: Materials for Biology and Medicine published new progress about Adhesion, physical (surface). 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Synthetic Route of 71195-85-2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics