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Acrylic - Astrophysics Data System

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Last Updated: 10 December 2022

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Microwave-assisted synthesis of a magnetic core-shell material composed of Fe 3 O 4 @SiO 2 @poly(methacrylamide-co-acrylic acid) for an anticancer drug loading

Magnetic core-shell polymer nanocomposites have received a lot of attention in recent fields. MCS-PNCs are considered as one of the potential safe options for highly targeted and monitored drug delivery methods. Fe 3 O 4 nanoparticles were first synthesized by a novel co-precipitation technique and then coated with silica by Stober Method, and then coated with silica. Fe 3 O 4 nanoparticles were then coated with polymeric shell p by microwave-assisted precipitation polymerization process using methacrylamide and acrylic acid as functional monomers, ethylene glycol dimethacrylate as a crosslinker, and azobisisobutyronitrile as an initiator.

Source link: https://ui.adsabs.harvard.edu/abs/2022ApNan..12.3547S/abstract


Ion-specific nanoscale compaction of cysteine-modified poly(acrylic acid) brushes revealed by 3D scanning force microscopy with frequency modulation detection

We discovered the cadmium ion-specific nanoscale compaction of poly brushes modified with cysteine using three-dimensional scanning force microscopy as well as frequency modulation analysis. Stimuli-responsive polyelectrolyte brushes adapt their physico-chemical properties as a result of pH and ion concentrations in contact. Polyelectrolyte brushes were identified by using three-dimensional scanning force microscopy coupled with frequency modulation analysis, revealing an ion-specific, nanoscale response. The brushes' cadmium-specific nanoscale compaction is attributed to the coordination of thiol and carboxyl side chains with cadmium ions, which has been suggested for naturally occurring, heavy metal binding proteins.

Source link: https://ui.adsabs.harvard.edu/abs/2022NanoA...4.5027Y/abstract


Synthesis and characterizations of high oil length alkyd resin with dehydrated castor oil and acrylic pimaric acid

Due to its excellent adhesion, elasticity, and tenacity, Alkyd resin has been widely used in paint applications. Acrylic pimaric acid was evaluated as a bio-based substitute for the aromatic diacid monomer with phthalic anhydride in the manufacture of high-length alkyd resins by this research. Because the reactivity of APA is less than that of PA, it can be included in two-stages, implying that it is only added with ethylene glycol in the first stage polyesterification reaction.

Source link: https://ui.adsabs.harvard.edu/abs/2022CPL...80539934C/abstract


Modelling viscoelastic relaxation mechanisms in thermorheologically complex Fe(iii)–poly(acrylic acid) hydrogels

Hydrogels with reversible transition metal crosslinks can be modified in a variety of ways, depending on the metal bond's dissociation kinetics. We use rheology to investigate the sol-u2013gel transition of a Fe-u2013poly network with different crosslinker content and model the appropriate mechanical relaxation at different stages of gelation. A timeu2013superposition procedure is used for both processes separately to account for chain and crosslinker dynamics, as well as the separation of dynamic processes in these thermorheologically complex dynamic networks. Chain relaxation's activation energy remains unchanged whether or not the chain participates in the network. We integrate theories from fractional viscoelasticity with a generalized Maxwell model that reveals the behavior of unentangled chain solution with reversible crosslinks, which aids in process dynamic modulus.

Source link: https://ui.adsabs.harvard.edu/abs/2022SMat...18.8467L/abstract


Dual structure engineering of SiO x -acrylic yarn derived carbon nanofiber based foldable Si anodes for low-cost lithium-ion batteries

Since the Si particles' thin and durable solid electrolyte interface film was produced, the Si particle's amorphous SiO x and carbon coating on the outside of the Si particles provide a double buffer for volume expansion while reducing the contact between the Si core and the electrolyte to form a thin and stable solid electrolyte interface film. Results obtained by Simultaneous in-situ electrochemical impedance testing and galvanostatic intermittent titration technique experiments indicate that SiO x and C have higher ion/electron transport rates, as well as using acrylic fiber yarn and Zn 2 as raw materials reduces the manufacturing cost and improved mechanical properties.

Source link: https://ui.adsabs.harvard.edu/abs/2022JCIS..628A.530C/abstract


Acrylic acid plasma polymerization and post-plasma ethylene diamine grafting for enhanced bone marrow mesenchymal stem cell behaviour on polycaprolactone nanofibers

The surface of PCL NFs was first modified by acrylic acid plasma polymerization in order to improve this interactivity in this research. Both water contact angle and zeta potential measurements revealed significant wettability rise and surface charge decrease, respectively. In addition, a post-plasma grafting step of ethylene diamine was conducted on the surface carboxylic acid groups to investigate the effect of COOH-groups on bone marrow mesenchymal stem cell adhesion and proliferation. The best BMST results were obtained by this post-plasma grafting, showing that minor changes in the surface chemistry could have a significant effect on cell-biomaterial interactions.

Source link: https://ui.adsabs.harvard.edu/abs/2021ApSS..56350363A/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions