Category: 1592-20-7

Nasiri Oskooie, Maryam; Pooresmaeil, Malihe; Namazi, Hassan published the artcile< Design and synthesis of vinylic glycomonomers and glycopolymer based on α-D-glucofuranose moieties>, Electric Literature of 1592-20-7, the main research area is vinylic glycomonomer glycopolymer glucofuranose moiety synthesis.

Carbohydrates are valuable and safe sources for the synthesis of biopolymers. Today, synthetic polymers having saccharides as pedant groups are one of the great interests in biochem. and the medicinal field. In this work, with the aim of preparing the new glyco-copolymer, firstly isopropylidene derivative of α-D-glucofuranose was synthesized from the reaction of acetone with the glucose in the presence of sulfuric acid as catalyst. Then the obtained compound sep. reacted with acryloyl chloride and ρ-(chloromethyl)styrene monomers to produce related vinylic type glycomonomers. The synthesized glycomonomers were purified using column chromatog. Characterization of the synthesized vinylic glycomonomers was carried out using elemental anal., fourier transform IR, Carbon-13NMR and proton NMR spectroscopy. In the next step, the obtained glycomonomers were copolymerized in 1:1 ratio via a fast and easy free radical polymerization technique. The obtained copolymer showed good solubility in various solvents such as THF, chloroform, Et acetate, and some of the other organic solvents. Finally, water-soluble glyco-copolymer was obtained via partial hydrolysis. The structure of the isolated copolymers determined using the 1H NMR, gel permeation chromatog., and FT-IR spectroscopy.

Journal of Polymer Research published new progress about Biocompatible materials. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Electric Literature of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Guo, Yong; van Ravensteijn, Bas G. P.; Kegel, Willem K. published the artcile< Dimple Colloids with Tunable Cavity Size and Surface Functionalities>, COA of Formula: C9H9Cl, the main research area is dimple colloid tunable cavity size surface functionality.

Dimple colloids with well-defined cavities were synthesized by a modified dispersion polymerization The key step in the procedure is the delayed addition of crosslinkers into the reaction mixture By systematically studying the effect of the delayed addition time and the concentration of the crosslinker on the resulting particle morphol., we identified the dominating driving force that underlies dimple formation. The delayed addition of crosslinkers results in colloids with a core-shell morphol. consisting of a core rich in linear polymers and a crosslinked shell. This morphol. was confirmed by selectively etching non-crosslinked material using DMF. With polymerization proceeding, consumption of monomers present in the swollen particles leads to contraction of the particles, which is larger for the core composed of linear polymers compared to the stiffer crosslinked shell. To accommodate this decrease in volume, the outer crosslinked shell has to buckle, resulting in a well-defined dimple. Furthermore, we extended the procedure to incorporate functional monomers, yielding chem. modifiable dimple particles. Subsequently, we showed that by leveraging the core-shell structure, these dimple particles can be used to prepare dumbbell-shaped colloids with one hollow and one solid lobe. These partially hollow anisotropic particles assemble into strings with well-defined orientations in an a.c. elec. field.

Macromolecules (Washington, DC, United States) published new progress about Colloids. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, COA of Formula: C9H9Cl.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Tsagdi, Artemis; Druvari, Denisa; Panagiotaras, Dionisios; Avramidis, Pavlos; Bekiari, Vlasoula; Kallitsis, Joannis K. published the artcile< Polymeric coatings based on water-soluble trimethylammonium copolymers for antifouling applications>, COA of Formula: C9H9Cl, the main research area is water soluble trimethylammonium copolymer coating antifouling application; antifouling coatings; aquaculture nets; crosslinked polymeric materials; high-pressure cleaning; quaternary trimethylammonium compounds; water-soluble copolymers.

Crosslinked polymeric materials based on a quaternary trimethylammonium compound were developed and evaluated as potential antifouling coatings. For this purpose, two water-soluble random copolymers, poly(4-vinylbenzyltrimethylammonium chloride-co-acrylic acid) P(VBCTMAM-co-AAx) and poly(N,N-dimethylacrylamide-co-glycidylmethacrylate) P(DMAm-co-GMAx), were synthesized via free radical polymerization A water based approach for the synthesis of P(VBCTMAM-co-AAx) copolymer was used. Coatings of the complementary reactive copolymers in different compositions were obtained by curing at 120°C for one day and were used to coat aquaculture nets. These nets were evaluated in respect to their release rate using Total Organic Carbon (TOC) and Total Nitrogen (TN) measurements. Finally, the antifouling efficacy of these newly-composed durable coatings was investigated for 14 days in accelerated conditions. The results showed that this novel polymeric material provides contact-killing antifouling activity for a short time period, whereas it functions efficiently in biofouling removal after high-pressure cleaning.

Molecules published new progress about Antifouling agents. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, COA of Formula: C9H9Cl.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Mecca, Tommaso; Ussia, Martina; Caretti, Daniele; Cunsolo, Francesca; Dattilo, Sandro; Scurti, Stefano; Privitera, Vittorio; Carroccio, Sabrina C. published the artcile< N-methyl-D-glucamine based cryogels as reusable sponges to enhance heavy metals removal from water>, Application In Synthesis of 1592-20-7, the main research area is methyl glucamine based cryogel adsorption heavy metal removal reusable.

The design of novel cryogels containing N-methyl-D-glucamine (NMG) group was herein reported. The macroporous materials were prepared via sustainable and feasible cryopolymn. by using as co-monomers (4-vinyl-benzyl)-N-methyl-D-glucamine (VbNMG) and 2-hydroxyethyl methacrylate (HEMA) at different percentages. Particularly, cryogel containing 100% of VbNMG (VbNMG-100) showed excellent ability in fast water uptake, removing arsenic (V) and chromium (VI) metal ions from it. Reusability up to six cycles was also demonstrated. The as-prepared materials were characterized by spectroscopic, thermal, and morphol. analyses. The effect of initial oxyanions concentration, kinetic profiles, interfering anions (phosphate and sulfate) were investigated and adsorption/desorption studies were carried out. Equilibrium sorption results well fitted the Langmuir isotherm for both ions tested, showing a startling aptitude in arsenic (76.3 mg/g) as well as chromium (130.9 mg/g) sorption properties if compared with similar polymers as well as other materials. Exploiting its spongy nature, only 5 mins were needed to absorb contaminated medium releasing purified water by a simple squeezing. Most importantly, the sponge can be easily regenerated and reused again up to three times without the depletion of its efficiency.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Adsorbents. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Application In Synthesis of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Acikses, Aslisah; Comez, Necmittin; Biryan, Fatih published the artcile< Metal complexes of a homopolymer system containing diethanolamine side group: synthesis and dielectrical behaviors>, Electric Literature of 1592-20-7, the main research area is diethanolamine side group homopolymer metal complex preparation dielec property.

In this work, 4-diethanolaminomethyl styrene (DEAMSt) monomer was prepared by modification of 4-chloromethyl styrene with diethanolamine. The homopolymerization of modificated styrene was carried out by free radical polymerization method at 60 °C in presence of 1,4-dioxane and AIBN. The metal complexes were prepared by reaction of the homopolymer used as ligand P(DEAMSt)L1 and Ni(II), Co(II) metal ions in presence of ethanol and dilute NaOH at 65 °C for 48 h in pH 6. The structure of modificated monomer, homopolymer used as ligand and polymer-metal complexes were characterized by FT-IR, 1H-NMR, 13C-NMR, Raman spectroscopy techniques, elemental anal., SEM, XRD and magnetic measurements. Their geometric structures according to magnetic measurements of Co(II) and Ni(II) complexes were estimated that have a tetrahedral structure. P(DEAMSt)L1 polymer has a transition state between amorphous and crystalline, whereas metal complexes (Co(II) and Ni(II) are with a large crystal structure. The mol. weight of P(DEAMSt)L1 homopolymer was determined by gel permeation chromatog. The glass transition temperature (Tg) of homopolymer was measured by differential scanning calorimeter. The thermal behaviors of both ligand and polymer-metal complexes were investigated by thermogravimetric anal. and DTA. The results obtained were compared with each other. Then, the dielec. measurements (dielec. constant, dielec. loss and conductivity) of the ligand and polymer-metal complexes were investigated as a function of temperature and frequency. The activation energies (Ea) of the ligand and metal complexes were determined from the conductivity measurements.

Journal of Macromolecular Science, Part A: Pure and Applied Chemistry published new progress about Activation energy. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Electric Literature of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chen, Zhichao; Huang, Di; Hwang, Jiann-Yang published the artcile< Effect of styrene addition on chemically induced grafting of 4-vinylbenzyl chloride onto low-density polyethylene for anion exchange membrane preparation>, Application In Synthesis of 1592-20-7, the main research area is styrene vinylbenzyl chloride polyethylene anion exchange membrane.

Anion exchange membranes were prepared from graft polymerization of 4-vinylbenzyl chloride on low-d. polyethylene matrix and subsequent amination with trimethylamine solution The graft polymerization was initiated by benzoyl peroxide instead of gamma ray radiation. The resulting membranes had insufficient anion exchange functional groups; however, this could be enhanced by adding 10% styrene to 4-vinylbenzyl chloride in a graft polymerization reaction. Further addition of styrene resulted in a decrease of the ion exchange capacity of anion exchange membranes due to competition with 4-vinylbenzyl chloride in graft polymerization onto polyethylene. These were evidenced by anal. titration, elemental anal., IR spectroscopy and 1H NMR. © 2019 Society of Chem. Industry.

Polymer International published new progress about Anion exchange membranes. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Application In Synthesis of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Robles-Hernandez, Beatriz; Gonzalez-Burgos, Marina; Pomposo, Jose A.; Colmenero, Juan; Alegria, Angel published the artcile< Glass-transition dynamics of mixtures of linear poly(vinyl methyl ether) with single-chain polymer nanoparticles: evidence of a new type of nanocomposite materials>, Electric Literature of 1592-20-7, the main research area is vinyl polymer chain nanoparticle glass transition dynamic mixture nanocomposite; dielectric relaxation; glass transition; nanocomposites; polymer blends; single-chain polymer nanoparticles.

Single-chain polymer nanoparticles (SCNPs) obtained through chain collapse by intramol. crosslinking are attracting increasing interest as components of all-polymer nanocomposites, among other applications. We present a dielec. relaxation study on the dynamics of mixtures of poly(vinyl Me ether) (PVME) and polystyrene (PS)-based SCNPs with various compositions Analogus dielec. measurements on a miscible blend of PVME with the linear precursor chains of the SCNPs are taken as reference for this study. Both systems present completely different behaviors: While the blend with the linear precursor presents dynamics very similar to that reported for PVME/PS miscible blends, in the PVME/SCNP mixtures there are an appreciable amount of PVME segments that are barely affected by the presence of SCNPs, which nearly vanishes only for mixtures with high SCNP content. Interestingly, in the frame of a simple two-phase system, our findings point towards the existence of a SCNP-rich phase with a constant PVME fraction, regardless of the overall concentration of the mixture Moreover, the dynamics of the PVME segments in this SCNP-rich phase display an extreme dynamic heterogeneity, a signature of constraint effects.

Polymers (Basel, Switzerland) published new progress about Dielectric constant. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Electric Literature of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Liu, Qiyu; Zhou, Liang; Fan, Di; Guan, Mingzhao; Ma, Qiaozhi; Li, Song; Ouyang, Xinping; Qiu, Xueqing; Fan, Wei published the artcile< Adsorption-Enhanced Glucan Oligomer Production from Cellulose Hydrolysis over Hyper-Cross-Linked Polymer in Molten Salt Hydrate>, SDS of cas: 1592-20-7, the main research area is adsorption glucan oligomer cellulose molten salt hydrate; cellulose; glucan oligomer; hydrolysis; hyper-cross-linked polymer; reactive adsorption.

Selective saccharification of cellulose into glucose is a critical step for utilization of lignocellulosic biomass. Molten salt hydrates (MSHs) have shown promising performance in selectively converting cellulose into glucose because of the high solubility of cellulose in the solvent. However, the separation of formed glucose from the MSHs is still a grand challenge. To address this issue, we developed a two-step process, where crystalline cellulose is hydrolyzed into short-chain glucan oligomers in MSHs followed by separation and subsequent hydrolysis of the formed oligomers into glucose under mild conditions. The two-step method provides an easy separation for glucan oligomers from the MSHs without sacrificing the selectivity to glucose. Application of the method for crystalline cellulose is, however, limited to a relatively low concentration, 26.2 mg/mL, because of the formation of byproducts in the MSH that facilitate oligomers degradation In this work, reactive adsorption was employed to in situ remove the byproducts formed during cellulose hydrolysis in the MSH. It was found that hyper-crosslinked polymer (HCP) made from the polymerization of 4-vinylbenzyl chloride and divinylbenzene can selectively adsorb 5-hydroxymethylfurfural (5-HMF) and levulinic acid (LA) while showing negligible sugar adsorption in both water and the MSH. With the reactive adsorption approach, byproducts including 5-HMF and LA were removed from the reaction media under reaction conditions, and their neg. effects on oligomer degradation were inhibited. In the presence of the HCP, the obtained glucan oligomer concentration was enhanced from less than 54.2 to 247.1 mg mL-1 when the weight ratio of cellulose was increased to MSH from 1:60 to 1:4, exhibiting an oligomer yield of 69.5%. The HCP can be effectively separated from the reaction media by filtration and regenerated by oxidation with hydrogen peroxide. Application of reactive adsorption with HCP for cellulose hydrolysis in the MSH provides a promising method to produce glucan oligomers and glucose with an improved yield and efficiency.

ACS Applied Materials & Interfaces published new progress about Adsorbents. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, SDS of cas: 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Yu, Hao; Wang, Zhenhua; Wu, Ri; Chen, Xiangfeng; Chan, T.-W. Dominic published the artcile< Water-dispersible pH/thermo dual-responsive microporous polymeric microspheres as adsorbent for dispersive solid-phase extraction of fluoroquinolones from environmental water samples and food samples>, Category: chlorides-buliding-blocks, the main research area is polymeric microsphere liquid chromatog mass spectrometry; dispersive solid phase extraction water dispersibility; Environmental samples; Hydrophilic–hydrophobic transition; Liquid chromatography–mass spectrometry; Polymeric microspheres; Water dispersibility; d-SPE.

Multifunctional polymeric microspheres were prepared using hyper-crosslinking chem. combined with surface-initiated atom transfer radical polymerization The synthesized microspheres exhibited good water dispersibility, a high surface area, and pH/thermo dual-responsiveness. Fluoroquinolones (FQs), which contains a hydrophilic piperazine ring and hydrophobic fluorine atoms, were used as target analytes to assess the performance of the microspheres as a sorbent for dispersive solid-phase extraction (d-SPE). The d-SPE exptl. parameters, including extraction time, amount of microspheres, extraction temperature, and sample solution pH, as well as the desorption conditions, were systematically studied. Coupled with LC-MS/MS, an anal. method for anal. of trace-level FQs in water samples was developed and validated. Under optimal conditions, linearity with correlation coefficients (r) of >0.99 was achieved in the concentration range of 0.02-10 μg L-1. The limits of detection and quantification for the selected FQs were 5.0-6.7 and 12-20 ng L-1, resp. High recovery values (93.1%-97.2%), a high enrichment factor (∼180), and good precision (RSD < 8%, n = 6) were obtained for FQ determination in spiked purified water samples. It was proposed that hydrophilic-hydrophobic transition induced by stretching and shrinking of polymer chains under different pH and temperature conditions offered good control of the surface wettability and altered the extraction behavior. The developed method was validated and was successfully applied to the anal. of FQs in environmental water samples, meat and milk samples. These results demonstrated that the water-dispersible polymeric microspheres have good potential for use in separation and extraction techniques. Journal of Chromatography A published new progress about Adsorbents. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Category: chlorides-buliding-blocks.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Gimenez, Rodrigo E.; Serrano, Mariana P.; Alvarez, Rosa Maria S.; Martino, Debora M.; Borsarelli, Claudio D. published the artcile< Fabrication and Characterization of Hollow Microcapsules from Polyelectrolytes Bearing Thymine Pendant Groups for Ultraviolet-B (UVB)-Induced Crosslinking>, Electric Literature of 1592-20-7, the main research area is polyelectrolyte microcapsule thymine UV crosslinking; hollow microcapsules; layer-by-layer method; photo-crosslinking; polyelectrolytes; thymine.

DNA – bioinspired polyelectrolytes poly[vinylbenzylthymine (VBT)-4-vinylbenzyltriethylammonium chloride (VBA)] and poly[vinylbenzylthymine (VBT)-4-vinylphenylsufonate (VPS)] were used for the preparation of hollow microcapsules (HMC) using the layer-by-layer method and CaCO3 microspheres as removable molds. Stable aqueous suspensions of spherical-shaped HMCs with a shell composed of six layers of VBA-based polyelectrolytes were obtained, of approx. (7.0 ± 1.5) μm diameter and a shell thickness of 1 μm. UV-B irradiation of the HMC suspensions induces an efficient crosslinking between adjacent polyelectrolyte chains through the formation of thymine photodimers, such as the cyclobutane pyrimidine dimer (CPD) and the (6-4) pyrimidine-pyrimidone photoproduct (6-4PP). This process resulted in a reduction of the average interstitial mesh size of the HMC shells, modulating their permeability properties and increasing the mech. stability of the HMC without a noticeable modification of size and shape. Thus, the DNA-bioinspired polyelectrolytes are promising materials for the preparation of UVB-responsive HMCs.

ChemPlusChem published new progress about Double-layer capacitance. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Electric Literature of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics