Category: 71195-85-2

ter Huurne, Gijs M.; Vantomme, Ghislaine; van den Bersselaar, Bart W. L.; Thota, Bala N. S.; Voets, Ilja K.; Palmans, Anja R. A.; Meijer, E. W. published the artcile< The effect of dendritic pendants on the folding of amphiphilic copolymers via supramolecular interactions>, Computed Properties of 71195-85-2, the main research area is dendritic pendant amphiphilic polyacrylate supramol interaction.

The supramol. folding of amphiphilic heterograft copolymers equipped with dendritic pendants is investigated using a combination of proton NMR (1H NMR) spectroscopy, small-angle X-ray scattering, and CD spectroscopy. Hereto, the linear poly(ethylene glycol) pendants normally used to convey water compatibility are partially substituted with branched analogs. For one set of copolymers, second-generation polyglycerol dendrons are directly attached to the polymer backbone, while for the other a hydrophilic linker is placed in between. The results show that the branching of the hydrophilic pendants affects the local structure of the folded copolymer but does not influence the overall conformation and single-chain character of the folded copolymers in solution All copolymers fold into 4-5 nm single-chain polymeric nanoparticles with a very compact spherical morphol., independent of the dendritic content of the copolymer. Intriguingly, the incorporation of the dendritic pendants affects the formation of a structured interior even at low incorporation ratios. © 2018 Wiley Periodicals, Inc.J. Polym. Sci., Part A: Polym.Chem. 2018.

Journal of Polymer Science, Part A: Polymer Chemistry published new progress about Fluoropolymers Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 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

Shang, Jiaojiao; Lin, Shaojian; Theato, Patrick published the artcile< UV-triggered shape-controllable PP fabric>, COA of Formula: C9H3F5O2, the main research area is polypropylene fabric spin coating glass transition temperature flexibility.

A light-driven polypropylene (PP) fabric as an actuator was fabricated in which a light-responsive polymeric film acts as an active layer and a PP fabric acts as a passive layer. For this, poly[di(ethylene glycol)methyl ether methacrylate-co-pentafluorophenyl acrylate] P(DEGMA-co-PFPA) containing reactive pentafluorophenyl esters was synthesized as a precursor polymer. Owing to the highly reactive esters on P(DEGMA-co-PFPA), photoactive azobenzene moieties were introduced onto the polymer backbone via a post-modification polymerization strategy to form a light-responsive polymer, poly[di(ethylene glycol)methyl ether methacrylate-co-4-(4-methoxy-phenylazo) acrylate] (P(DEGMA-co-MOPAzo)). Interestingly, this copolymer can be attached in a simple and stable manner to the surface of a PP fabric via phys. adsorption to build a light-responsive PP fabric. On account of its light responsiveness, this functional polymer PP fabric can immediately respond to a UV stimulus and show a reversible shape transition upon alternating exposure to UV irradiation and the addition of heat.

Polymer Chemistry published new progress about Actuators. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, COA of Formula: C9H3F5O2.

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

Boerner, Hans G.; Suetterlin, Romina I.; Theato, Patrick; Wiss, Kerstin T. published the artcile< Topology-Dependent Swichability of Peptide Secondary Structures in Bioconjugates with Complex Architectures>, Name: Perfluorophenyl acrylate, the main research area is peptide polyethylene oxide conjugate secondary structure; bioconjugates; controlled radical polymerization; peptides; responsive polymers; self-assembly.

Peptide sequences, which exhibit a reversible pH-responsive coil to α-helix secondary structure transition, are conjugated to polymer precursors to yield linear AB and graft ABA peptide-poly(ethylene oxide) conjugates. While the PEO B-block is comparable, the conjugates differ in topologies of the peptide bearing A-blocks. The influences of topol. on the structure transitions in the peptide segments are investigated, comparing linear AB-bioconjugates with graft ABA-bioconjugates having multiple peptide segments combined in star or pom-pom topologies.

Macromolecular Rapid Communications published new progress about Helicity. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Name: Perfluorophenyl acrylate.

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

Pare, Ashay; Modi, Yashwant Kumar; Rai, Harsh Vardhan published the artcile< Environmental impact comparison of binder systems for sand moulding process using cradle-to-grave approach>, Quality Control of 71195-85-2, the main research area is binder sand molding cradle grave approach environmental impact.

Growing demand for preservation of environment, conservation of resources and development of a sustainable society is driving manufacturers to make “”greener”” products and use “”greener”” processes. Foundry is considered one of the most environment polluting industries all over the world. The work presented in this paper compares environmental impacts of sand molding process for four different binder systems, namely phenolic urethane no-bake, phenolic ester no-bake, phenolic formaldehyde and furan no-bake using a cradle-tograve life cycle assessment (LCA) approach. The comparison is made using various impact categories, such as global warming, acidification, ecol. toxicity, eutrophication, human toxicity and photochem. smog by ISO-FRED-14040 LCA method. Results of the study show that the phenolic urethane is most and the furan no bake binder is least harmful to environment and human health in most of the categories. Emissions from the phenolic ester nobake binder system are most dangerous for human health. This study also revealed that the raw material acquisition phase consumes major portion of life cycle energy for mold making process.

IOP Conference Series: Materials Science and Engineering published new progress about Acidification. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Quality Control of 71195-85-2.

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

zur Borg, Lisa; Lee, Donggu; Lim, Jaehoon; Bae, Wan Ki; Park, Myeongjin; Lee, Seonghoon; Lee, Changhee; Char, Kookheon; Zentel, Rudolf published the artcile< The effect of band gap alignment on the hole transport from semiconducting block copolymers to quantum dots>, Reference of 71195-85-2, the main research area is bandgap alignment hole transport semiconducting copolymer quantum dot LED.

Semiconducting hole transporting block copolymers were chem. modified to adjust their energy levels to that of CdSe/CdS/CdZnS red quantum dots. Hybrids with optimized energy levels could be used to build strongly improved quantum dot based LEDs (QLEDs).

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about Band gap. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Reference of 71195-85-2.

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

Garcia, Edzna S.; Xiong, Thao M.; Lifschitz, Abygail; Zimmerman, Steven C. published the artcile< Tandem catalysis using an enzyme and a polymeric ruthenium-based artificial metalloenzyme>, Application In Synthesis of 71195-85-2, the main research area is tandem catalysis polymeric ruthenium catalyst.

A Ru-containing single chain nanoparticle (SCNP) was prepared in three steps using radical polymerization of pentafluorophenylacrylate, post-polymerization functionalization with three different alkylamines, and coordination of Ru. The polymer was characterized by 1H NMR, 19F NMR, UV-vis, and DLS. The catalytic activity of the Ru-SCNP for Ru-catalyzed cleavage of allylcarbamates was evaluated by fluorescence spectroscopy and a higher percent conversion and initial rate of reaction was observed when compared to that of the free catalyst in buffer and cell media. The catalytic SCNP was also shown to perform tandem catalysis with β-galactosidase.

Polymer Chemistry published new progress about Acrylic polymers, fluorine-containing Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), 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

Das, Anindita; Lin, Shaojian; Theato, Patrick published the artcile< Supramolecularly Cross-Linked Nanogel by Merocyanine Pendent Copolymer>, Electric Literature of 71195-85-2, the main research area is supramolecularly crosslinked nanogel merocyanine pendent polyacrylic.

Directional dipole-dipole interaction mediated antiparallel dimerization of merocyanine dye (MD) has been explored for maneuvering supramol. assembly of MD-conjugated flexible macromols. leading to a cross-linked nanogel. The MD-functionalized copolymer was synthesized by a newly developed organocatalytic transesterification strategy for postpolymn. functionalization of poly(pentafluorophenyl acrylate) (polyPFPA)-based reactive copolymer. Presence of ∼35% pendant MD attached to a coil-like polymer chain leads to spontaneous formation of highly emitting crosslinked nanogel with efficient container property and appreciable stability in toluene owing to strong dimerization propensity among the MD. Considering the significance of MD in the context of nonlinear optics and photovoltaics, these results not only enrich the toolbox for engineering macromol. assembly, but also open up new possibilities for future organic materials.

ACS Macro Letters published new progress about Fluoropolymers Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 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

Brooks, Karson; Razavi, Mir Jalil; White, Evan M.; Wang, Xianqiao; Locklin, Jason published the artcile< The formation and evolution of creased morphologies using reactive diffusion in ultrathin polymer brush platforms>, HPLC of Formula: 71195-85-2, the main research area is creasing ultrathin polymer brush modification reactive diffusion morphol.

Precisely controlling the morphol. in thin film coatings has emerged as an important tool used to tune surface properties in a wide variety of applications. Previously, a method is reported to fabricate nanoscale surface creases with a high degree of control over crease size and shape using microcontact printing to perform post-polymerization modification on reactive polymer brush surfaces. In this work, this approach has been expanded to manipulate crease morphol. in reactive thin films, using only a drop of a reactive, viscous polymer, and crease formation has been investigated with a combination of exptl. observations and computational validations. The effects of various rate constants of the reactive polymer brush scaffold, hydrostatic pressure within the droplet of reactive polymer, diffusion profile, and the evolution of the creased morphologies with reaction time are examined in order to better understand crease formation in ultrathin films.

Advanced Materials Interfaces published new progress about Contact angle. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, HPLC of Formula: 71195-85-2.

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

Xue, Wenwen; Mutlu, Hatice; Theato, Patrick published the artcile< Post-polymerization modification of polymeric active esters towards TEMPO containing polymers: a systematic study>, Recommanded Product: Perfluorophenyl acrylate, the main research area is acrylic polymer radical functionalization secondary battery cathode.

Organic radical batteries (ORB) are a novel promising class for energy storage, particularly featuring a fast charging capability and extraordinary cycle life. The representative polymer, i.e. poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl methacrylate) (PTMA), is usually synthesized by a post-polymerization oxidation method. As an alternate strategy for developing TEMPO-containing polymers, we focused on the post-polymerization modification of poly(pentafluorophenyl acrylate) and poly(pentafluorophenyl methacrylate) with three different TEMPO nucleophiles by transesterification or amidation reactions. Optimizing the conditions of the post-polymerization functionalization reaction by varying different parameters, such as the type of nucleophile, catalyst and solvent, the feeding ratios of catalysts and nucleophiles, along with reaction time and temperatures, resulted in structurally distinct TEMPO containing polymers with varying backbone composition Intriguingly, poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl acrylamide) revealed the highest degree functionalization with TEMPO (96.2%) within 3 h. under considerably mild conditions, while poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl methylmethacrylamide) exhibited the lowest TEMPO content owing to the steric hindrance from Me group on both the methacrylate chain and the TEMPO derivative All other four TEMPO containing polymers had a radical content similar to PTMA (66.6%) synthesized by the post-oxidation methodol. Noteworthy, compared to TEA (trimethylamine), DMAP (4-dimethylaminopyridine) facilitated an efficient ester bond cleavage independent of the polymer precursor, thus, side reactions such as hydrolysis were increased. Though hydrolysis side reaction occurred, the resulting carboxylic acid group was proven to accelerate ion transfer in a certain way during the redox process. Furthermore, due to the higher TEMPO content, poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl acrylamide) exhibited a 12-22 mAh/g higher specific capacity compared to the PTMA-oxidation when running at 5C for 500 cycles.

European Polymer Journal published new progress about Battery capacity. 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

Suga, Takeo; Aoki, Kohei; Yashiro, Toshiaki; Nishide, Hiroyuki published the artcile< ""Click"" Incorporation of Radical/Ionic Sites into a Reactive Block Copolymer: A Facile and On-Demand Domain Functionalization Approach toward Organic Resistive Memory>, Product Details of C9H3F5O2, the main research area is Click amidation radical ionic reactive block copolymer resistive memory; charge-transport; ionic polymer; nitroxide radical; organic electronics; postpolymerization modification.

Reversible addition-fragmentation chain transfer polymerization yields reactive block copolymers bearing the pentafluorophenyl ester (PFPA) group, and subsequent Click amidation using 2,2,6,6-tetramethylpiperidine-N-oxyl- and imidazolium-functionalized primary amines produces the corresponding functional block copolymers, leading to installation of statistical radical- and ionic sites into the PFPA segment. The monolayered thin film devices fabricated using the obtained block copolymers exhibit repeatable switching of elec. conductivity (on/off ratio > 103) under a bias voltage, which reveals that the coexistence of radicals and ions in the same spherical domain of the copolymer layer is a prerequisite for repeatable switching memory.

Macromolecular Rapid Communications published new progress about Amidation. 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Product Details of C9H3F5O2.

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