Category: 111-18-2

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, ACS Sustainable Chemistry & Engineering called Influence of Loading a Tertiary Amine on Activated Carbons and Effect of CO2 on Adsorptive H2S Removal from Biogas, Author is Quan, Wenying; Jiang, Xiao; Wang, Xiaoxing; Song, Chunshan, which mentions a compound: 111-18-2, SMILESS is CN(C)CCCCCCN(C)C, Molecular C10H24N2, Related Products of 111-18-2.

This work studied the effect of loading a tertiary amine on activated carbons (ACs) and the effect of CO2 on adsorptive H2S removal from biogas. After loading a tertiary amine, tetra-Me hexanediamine (THMDA), the H2S adsorption capacity increased for all ACs but with different levels. Detailed characterization results (TGA-MS, TGA/DTG, and in situ FT-IR) demonstrate the TMHDA-induced changes of surface oxygen or nitrogen functional groups, pH value, and textural properties and their impacts on H2S adsorption performance, which also varied with CO2 concentrations On bare AC adsorbents, the H2S adsorption is attributed to the surface oxygen functional groups, whereas on tertiary amine-loaded ACs, the H2S adsorption is due to the interaction between H in H2S and N in the amine group. The presence of CO2 can promote H2S adsorption on some ACs and THMDA-loaded ACs. The formation of solid sulfur and CH4 was observed for the H2S adsorption in the presence of CO2. Improvement in H2S adsorption capacity was highlighted on active carbon-supported tertiary amine adsorbents, and its correlation with physicochem. properties was discussed.

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Macromolecular Bioscience called Robust Grafting of Polyionenes: New Potent and Versatile Antimicrobial Surfaces, Author is Bernardi, Sarah; Renault, Margareth; Malabirade, Antoine; Debou, Nabila; Leroy, Jocelyne; Herry, Jean-Marie; Guilbaud, Morgan; Arluison, Veronique; Bellon-Fontaine, Marie-Noelle; Carrot, Geraldine, which mentions a compound: 111-18-2, SMILESS is CN(C)CCCCCCN(C)C, Molecular C10H24N2, Related Products of 111-18-2.

Polyionenes (PI) with stable pos. charges and tunable hydrophobic spacers in the polymer backbone, are shown to be particularly efficient regarding antimicrobial properties. This effect can be modulated since it increases with the length of hydrophobic spacers, i.e., the number of methylene groups between quaternary ammoniums. Now, to further explore these properties and provide efficient antimicrobial surfaces, polyionenes should be grafted onto materials. Here a robust grafting strategy to covalently attach polyionenes is described. The method consisted in a sequential surface chem. procedure combining polydopamine coating, diazonium-induced polymerization, and polyaddition To the best of knowledge, grafting of PI onto surfaces is not reported earlier. All chem. steps are characterized in detail via various surface anal. techniques (FTIR, XPS, contact angle, and surface energy measurements). The antibacterial properties of polyionene-grafted surfaces are then studied through bacterial adhesion experiments consisting in enumeration of adherent bacteria (total and viable cultivable cells). PI-grafted surfaces are showed to display effective and versatile bacteriostatic/bactericidal properties associated with a proadhesive effect.

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Feng, Fuxiang; Niu, Xiaopo; Wang, Li; Zhang, Xiangwen; Wang, Qingfa published the article 《TEOS-modified Ni/ZSM-5 nanosheet catalysts for hydroconversion of oleic acid to high-performance aviation fuel: Effect of acid spatial distribution》. Keywords: tetraethoxysilane nickel ZSM5 nanosheet catalyst; hydroconversion oleic acid aviation fuel spatial distribution.They researched the compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine( cas:111-18-2 ).Safety of N1,N1,N6,N6-Tetramethylhexane-1,6-diamine. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:111-18-2) here.

Ni/ZSM-5 nanosheet catalysts with different Si/Al ratios were modified by chem. liquid deposition (CLD) of tetraethoxysilane (TEOS) to tailor their acid spatial distribution. Their catalytic performance was evaluated with the hydroconversion of oleic acid to aviation-fuel-range-alkanes (AFRAs) at different reaction temperatures and H pressures. The modified catalysts inherit the nanosheet structure with decreased external Bronsted acid concentration, especially the strong one. External Bronsted acid sites mainly favor the cracking of the deoxygenated products (C17/C18). Internal Bronsted acid sites mainly enhance the isomerization of the linear AFRAs. The catalytic activity of the external Bronsted acid sites was more sensitive to reaction temperature than that of the internal ones. The deoxygenation and cracking reactions were also more sensitive to H pressure compared to the isomerization reaction. High AFRA selectivity of 51.4% as well as high iso/n-alkanes ratio of 1.7 were achieved at 250° and 10 bar over NS200(1).

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Reference of N1,N1,N6,N6-Tetramethylhexane-1,6-diamine. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine, is researched, Molecular C10H24N2, CAS is 111-18-2, about Removal of Metal Ions in Phosphoric Acid by Electro-Electrodialysis with Cross-Linked Anion-Exchange Membranes. Author is Duan, Xiaoling; Wang, Cun-Wen; Wang, Tielin; Xie, Xiaolin; Zhou, Xingping; Ye, Yunsheng.

There are numerous metallic impurities in wet H3PO4, which causes striking neg. effects on industrial H3PO4 production The purification behavior of metallic impurities (Fe, Mg, Ca) from a wet H3PO4 solution employing the electroelectrodialysis (EED) technol. was studied. The cross-linked polysulfone anion-exchange membranes (AEMs) for EED were prepared using N,N,N’,N’-tetramethyl-1,6-hexanediamine (TMHDA) to achieve simultaneous crosslinking and quaternization without any cross-linkers or catalysts. The performance of the resulting membranes can be determined using quaternization reagents. When the molar ratio of trimethylamine/TMHDA/chloromethylated polysulfone is 3:1:1, the cross-linked membrane CQAPSU-3-1 exhibits lower H2O swelling and membrane area resistance than the noncross-linked membrane. The low membrane area resistance of CQAPSU-3-1 with long alkyl chains was obtained due to the hydrophilic-hydrophobic microphase separation structure formed by TMHDA. EED experiments with different initial H3PO4 concentrations of 0.52 and 1.07M were conducted to evaluate the H3PO4 purification of different AEMs. The EED experiments were more suitable for the purification of wet H3PO4 solution at low concentrations The H3PO4 concentration in the anode compartment could be increased from 0.52 to 1.04M. Through optimization, with an initial acid concentration of 0.52M, CQAPSU-3-1 exhibits an enhanced metallic impurity removal ratio of >72.0%, the current efficiency of >90%, and energy consumption of 0.48 kWh/kg. Therefore, CQAPSU-3-1 exhibits much higher purification efficiency than other membranes at a low initial H3PO4 concentration, suggesting its potential in H3PO4 purification application.

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine(SMILESS: CN(C)CCCCCCN(C)C,cas:111-18-2) is researched.Reference of Bis[2-(1-isoquinolinyl-N)phenyl-C](2,4-pentanedionato-O2,O4)iridium(III). The article 《Direct synthesis of hierarchical zeolites through mesoporous 3D wormhole framework using single-head quaternary ammonium salt as structure-directing agent》 in relation to this compound, is published in Journal of Materials Science. Let’s take a look at the latest research on this compound (cas:111-18-2).

Hierarchical aluminosilicate zeolites with uniform mesoporosity were successfully synthesized by one-stage crystallization under constant temperature with a novel single-head quaternary ammonium salt ([C18H37-N+(CH3)2-C6H12-N(CH3)2]Br-) as mesoporogen and structure-directing agent (SDA). Through precisely controlling the molar ratio of Si/Al and synthetic time, the mesoporous 3D wormhole framework (MCM-48) and crystalline microporous MFI structure were simultaneously constructed, revealed by a series of in-depth characteristic studies. Combining the advantages of the significantly improved diffusion from the mesoporous MCM-48 and the strong framework acidity of the crystalline microporous MFI zeolite, the hierarchical aluminosilicate zeolites exhibited outstanding catalytic activity with good reusability towards bulky aldol condensation compared with the conventional meso- or microporous zeolites.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Product Details of 111-18-2. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine, is researched, Molecular C10H24N2, CAS is 111-18-2, about The influence of spacer composition on thermomechanical properties, crystallinity, and morphology in ionene segmented copolymers. Author is Liesen, Nicholas T.; Wang, Meng; Taghavimehr, Mehrnoosh; Lee, Jae Sang; Montazami, Reza; Hall, Lisa M.; Green, Matthew D..

A series of segmented ammonium ionenes with varying weight fractions of 2000 g mol-1 poly(ethylene glycol) (PEG) or poly(tetramethylene oxide) (PTMO) soft segments were synthesized, and a simplified coarse-grained model of these materials was implemented using mol. dynamics simulations. In addition to varying soft segment type (PTMO vs.PEG). Charge d. and soft segment content were varied to create a comprehensive series of segmented ammonium ionenes; thermogravimetric anal. reveals that all segmented ionenes in the series are thermally stable up to 240°C. Differential scanning calorimetry (DSC) and dynamic mech. anal. (DMA) show the formation of phase separated microdomains at low soft segment content. In particular, DSC shows that the hard and soft domains have distinct glass transition temperatures Similarly, simulations show that reduced soft segment content induces stronger microphase separation, reduces soft segment mobility, and increases ionic aggregate connectivity and size. These increased ionic associations result in elastomeric behavior, as evidenced by the higher rubbery plateau moduli observed at lower soft segment contents through DMA. Moreover, simulations show that ionic aggregation increases when switching from PEG to the less polar PTMO repeat units, which is consistent with DMA results showing higher plateau moduli for PTMO-based ionenes relative to PEG ionenes. DSC and X-ray diffraction determined that the degree of crystallinity increased with soft segment content regardless of segment type. Overall, these results suggest a semi-crystalline microphase-separated morphol. strongly influenced by charge d., the degree of ionic aggregation, and the resulting level of confinement and mobility of the soft segments.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Baghodrat, Mohsen; Mehri, Foad; Rowshanzamir, Soosan researched the compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine( cas:111-18-2 ).Related Products of 111-18-2.They published the article 《Electrochemical performance and enhanced nitrate removal of homogeneous polysulfone-based anion exchange membrane applied in membrane capacitive deionization cell》 about this compound( cas:111-18-2 ) in Desalination. Keywords: nitrate removal polysulfone anion exchange membrane capacitive deionization cell. We’ll tell you more about this compound (cas:111-18-2).

This paper aims to investigate different strategies toward the enhancement of nitrate removal in a membrane capacitive deionization cell using different membrane functionalizing agents such as trimethylamine, triethylamine, and N,N,N’,N’-tetramethyl-1,6-hexanediamine as well as a double-layer, novel homogeneous polysulfone-based anion exchange membrane. The prepared membranes exhibited nitrate vs. chloride transport number ratio in the range of 0.96-1.52. The salt adsorption capacity for the NaNO3 feed was about 1.4-fold compared to that of using NaCl in case of triethylamine functionalized membrane under individual feeding solutions of 30 mL NaCl or NaNO3 during 30 min, and adsorption/desorption voltages of 1.6/0.0 V process conditions. At the same time, this parameter was about 1.2-fold weaker for the cell with a double-layer membrane. Based on the experiments, it can be inferred that the affinity toward nitrate could be promoted as the chain length of the alkyl group increases (i.e., increasing hydrophobicity of the groups). However, due to decrement in water uptake, the overall electrochem. performance of the membranes tended to weaken as the affinity toward nitrate increased. Results showed that the prepared membranes are suitable substitutions to conventional polystyrene-based ones utilized in membrane capacitive deionization cells.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Molecules called Chemical adsorption strategy for DMC-MeOH mixture separation, Author is Zhang, Fucan; Liu, Ping; Zhang, Kan; Song, Qing-Wen, which mentions a compound: 111-18-2, SMILESS is CN(C)CCCCCCN(C)C, Molecular C10H24N2, Application of 111-18-2.

The effective separation of di-Me carbonate (DMC) from its methanol mixture through simple, inexpensive and low energy-input method is a promising and challenging field in the process of organic synthesis. Herein, a reversible adsorption strategy through the assistance of superbase and CO2 for DMC/methanol separation at ambient condition was described. The process was demonstrated effectively via the excellent CO2 adsorption efficiency. Notably, the protocol was also suitable to other alc. (i.e., monohydric alc., dihydric alc., trihydric alc.) mixtures The study provided guidance for potential separation of DMC/alc. mixture in the scale-up production

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Lv, Xin; Li, Xiaojiang; Ge, Yang; Li, Qingping; Lu, Hongsheng published an article about the compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine( cas:111-18-2,SMILESS:CN(C)CCCCCCN(C)C ).Product Details of 111-18-2. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:111-18-2) through the article.

In this work, the approach for separating paraffin wax is proposed by using Span 80 combined with switchable water N,N,N’,N’-tetramethyl-1,6-hexanediamine (TMHDA), where the emulsification of paraffin wax can be promoted and paraffin wax is also separated sustainably. Here, the Span 80-containing mixture system exhibits an enhanced emulsification ability and CO2-switchable behavior upon the addition of TMHDA. Then, the paraffin wax is effectively emulsified by this switchable system containing Span 80 and TMHDA. Based on the detection of water separation rate, rheol. behavior, and micrographs of emulsified paraffin wax, it is found that the emulsification of paraffin wax can be improved by increasing the paraffin wax content and Span 80 content, and the viscosity of the paraffin wax is reduced after emulsification by this switchable system, which ascribes to the dispersion of wax crystals. In addition, the paraffin wax is separated upon introducing CO2, and the TMHDA solution is recovered upon treating with N2 at 65°C after separating the paraffin wax. The sustainable separation of paraffin wax results from the aggregation of wax crystals because of the reduced obstruction of oil droplets for wax crystals caused by the high ionic strength and the reduced surface activity of this system upon introducing CO2. Herein, it is expected that this sustainable separation can be applied in deposited wax removal in pipelines of crude oil transport.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Quality Control of N1,N1,N6,N6-Tetramethylhexane-1,6-diamine. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine, is researched, Molecular C10H24N2, CAS is 111-18-2, about The influence of spacer composition on thermomechanical properties, crystallinity, and morphology in ionene segmented copolymers. Author is Liesen, Nicholas T.; Wang, Meng; Taghavimehr, Mehrnoosh; Lee, Jae Sang; Montazami, Reza; Hall, Lisa M.; Green, Matthew D..

A series of segmented ammonium ionenes with varying weight fractions of 2000 g mol-1 poly(ethylene glycol) (PEG) or poly(tetramethylene oxide) (PTMO) soft segments were synthesized, and a simplified coarse-grained model of these materials was implemented using mol. dynamics simulations. In addition to varying soft segment type (PTMO vs.PEG). Charge d. and soft segment content were varied to create a comprehensive series of segmented ammonium ionenes; thermogravimetric anal. reveals that all segmented ionenes in the series are thermally stable up to 240°C. Differential scanning calorimetry (DSC) and dynamic mech. anal. (DMA) show the formation of phase separated microdomains at low soft segment content. In particular, DSC shows that the hard and soft domains have distinct glass transition temperatures Similarly, simulations show that reduced soft segment content induces stronger microphase separation, reduces soft segment mobility, and increases ionic aggregate connectivity and size. These increased ionic associations result in elastomeric behavior, as evidenced by the higher rubbery plateau moduli observed at lower soft segment contents through DMA. Moreover, simulations show that ionic aggregation increases when switching from PEG to the less polar PTMO repeat units, which is consistent with DMA results showing higher plateau moduli for PTMO-based ionenes relative to PEG ionenes. DSC and X-ray diffraction determined that the degree of crystallinity increased with soft segment content regardless of segment type. Overall, these results suggest a semi-crystalline microphase-separated morphol. strongly influenced by charge d., the degree of ionic aggregation, and the resulting level of confinement and mobility of the soft segments.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica