Tag: 200-300

On May 31, 2022, Li, Jianying; Huang, Bin; Tang, Huali; Cai, Mingzhong published an article.Name: 4,4′-Sulfonylbis(chlorobenzene) The title of the article was Synthesis of novel aromatic polyamides containing both sulfone linkages and cardo groups by a recyclable palladium-catalyzed carbonylation and condensation polymerization. And the article contained the following:

A series of novel aromatic polyamides containing both sulfone linkages and cardo groups were synthesized via a heterogeneous palladium-catalyzed carbonylation and condensation reaction of aromatic diiodides bearing ether sulfone linkages, carbon monoxide, and aromatic diamines with cardo groups. Polycondensation reaction proceeded smoothly under 1 atm of CO at 120°C in N,N-dimethylacetamide (DMAc) by using a bidentate phosphine ligand-modified magnetic nanoparticles-anchored palladium complex [2P-Fe3O4/SiO2-PdCl2] as a recyclable catalyst with 1,8-diazabicycle[5,4,0]-7-undecene (DBU) as a base, furnishing cardo poly(ether sulfone amide)s with inherent viscosities between 0.70 and 0.77 dL/g. The resulting polyamides could be readily dissolved in polar aprotic organic solvents and even dissolved in less polar pyridine and THF at room temperature and could be easily converted into flexible, transparent, and tough films via casting from their solutions in DMAc. These polymers exhibited excellent thermal stability with the glass transition temperatures between 241 and 283°C and the temperatures at 5% weight loss ranging from 438 to 475°C in an atm. of nitrogen. The polyamide films displayed good mech. behavior with tensile strengths of 78.8-84.4 MPa, tensile moduli of 2.08-2.57 GPa, and elongations at breakage of 10.2-12.5%, and optically high transparency with cut-off wavelengths in the range of 338-368 nm. The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Name: 4,4′-Sulfonylbis(chlorobenzene)

The Article related to aromatic polyamide sulfone cardo palladium catalyst carbonylation condensation polymerization, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Name: 4,4′-Sulfonylbis(chlorobenzene)

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

On February 29, 2020, Jikei, Mitsutoshi; Sato, Ai; Ha, Lam Tho; Takeda, Mao; Matsumoto, Kazuya; Sugimoto, Masataka; Sato, Hiroaki; Matsuba, Go published an article.Safety of 4,4′-Sulfonylbis(chlorobenzene) The title of the article was Synthesis and properties of long-chain-branched poly(aryl ether sulfone)-poly(tetrahydrofuran) multiblock copolymers. And the article contained the following:

Long-chain-branched poly(aryl ether sulfone)-poly(tetrahydrofuran) multiblock copolymers (PES-BPTHF) composed of hard linear and soft branching segments were synthesized from bromo-terminated poly(tetrahydrofuran) and hydroxy-terminated poly(aryl ether sulfone). A study on the effect of concentration on polymerization behavior revealed that soluble powder was obtained at the optimized reaction concentration of 7 wt%. Gelation and intramol. cyclization were observed at high and low concentrations, resp. The microphase-separated morphol. of PES-BPTHF was confirmed by at. force microscopy, small-angle X-ray scattering, and dynamic mech. anal. measurements. Fewer entangled poly(tetrahydrofuran) segments were detected in PES-BPTHF than in PES-PTHF by SAXS, DMA and tensile measurements. Rheol. measurements suggested high chain entanglement of PES-BPTHF in its melt phase. It is interesting to note that the polymer chains in the soft domains become less entangled and more reminiscent of hyperbranched architectures, whereas the overall chain entanglements are increased due to the long-chain-branched structure. The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Safety of 4,4′-Sulfonylbis(chlorobenzene)

The Article related to branched polyaryl ether sulfone polytetrahydrofuran multiblock copolymer preparation property, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Safety of 4,4′-Sulfonylbis(chlorobenzene)

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

On September 30, 2020, Xia, Jialing; Pu, Zejun; Zheng, Xiaoyi; Hu, Linqing; Zeng, Xianguang; Zhong, Jiachun published an article.HPLC of Formula: 80-07-9 The title of the article was Dielectric properties of polyethersulfone copolymers containing bisphenol S and six fluorine hexafluorobisphenolA (6AF) segments. And the article contained the following:

In this study, a series of fluorinated polyethersulfone (PES-6AF) copolymers with intrinsic low-dielec.-constants are prepared by the introduction of fluorine-containing group, which are derived from the polycondensation reaction of 4,4′-dichlorophenyl sulfone (DCS), bisphenol S (BPS) and six fluorine hexafluorobisphenolA (6AF) compounds by nucleophilic aromatic substitution. Different proportions of PES-6AF copolymers show high glass transition temperatures (Tg) ranging from 206°C to 230°C, and the thermal decomposition temperatures of PES-6AF copolymers are up to 500°C under N2 atmospheres. The PES-6AF copolymers display outstanding tensile strength (62-69 MPa). Added different proportions of 6AF into the PES-6AF copolymers could improve dielec. property and decrease dielec. constant (k) from 3.6 to 2.5 at 1 kHz. In addition, the dielec. properties were found to be relatively stable until the Tg, it is because that the 6AF units were existed in the mol. backbone. Furthermore, the PES-6AF copolymers were soluble in many common solvents and could be made the molten films using DMF as solvent. The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).HPLC of Formula: 80-07-9

The Article related to hexafluorobisphenol polyethersulfone copolymer polycondensation thermal dielec property, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.HPLC of Formula: 80-07-9

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

On October 31, 2021, Neupane, Umesh; Rai, R. N. published an article.COA of Formula: C7H4ClNO4 The title of the article was Co-crystals formation specified from binary phase diagram studies; Their thermochemical, spectroscopic and optical properties. And the article contained the following:

A thermodn. investigation on co-crystals formed by the complexation in binary systems involving 2-amino-5-chloropyridine (ACP) as electron donor with electron acceptors; 3-nitrobenzoic acid (NBA) and 2-chloro-4-nitrobenzoic acid (CNBA) have been studied sep. by establishing the phase diagram. The solvent-free synthesis method has been adopted to prepare various compositions of binary mixtures A co-crystal is formed at 1:1 mol ratio and two eutectics are formed, one on either side of co-crystal, in each system. The thermal properties of co-crystals, eutectics and parent components have been studied by DSC method. The various thermodn. parameters of co-crystal and eutectics are also studied based on heat of fusion values obtained from DSC. The co-crystals have been characterized by FT-IR, powder XRD and UV-vis. absorption techniques. The FT-IR study revealed the ionic interaction followed by hydrogen bonding (N-H…O) in both co-crystals. Powder XRD study ascertained the particle sizes and crystalline nature of co-crystals. Besides phase diagram, DSC and PXRD studies, the UV-vis. absorption study also has confirmed the complexation between parent mols. to form the co-crystals. The experimental process involved the reaction of 2-Chloro-4-nitrobenzoic acid(cas: 99-60-5).COA of Formula: C7H4ClNO4

The Article related to cocrystal formation binary phase diagram thermochem spectroscopic optical property, Thermodynamics, Thermochemistry, and Thermal Properties: Thermochemical Properties and other aspects.COA of Formula: C7H4ClNO4

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

On January 31, 2021, Yuan, Chengyun; Wang, Yinghan published an article.Synthetic Route of 80-07-9 The title of the article was Synthesis and characterization of a novel sulfonated poly (aryl ether ketone sulfone) containing rigid fluorene group for DMFCs applications. And the article contained the following:

A new sulfonated poly (aryl ether ketone sulfone) consisting of rigid fluorene groups (SPAEKS) is synthesized from 3, 3′-disulfonate-4, 4′-dichlorodiphenylsulfone, and 9, 9-bis (4-hydroxyphenyl) fluorene by a typical condensation polymerization The chem. structure of SPAEKS is characterized by 1H-NMR and FTIR spectra. SPAEKS-x membranes have moderate water absorption, swelling rate, good oxidative stability, and excellent thermal stability. The proton conductivity of SPAEKS-x membranes is in the range of 38.5-66.5 mS/cm. In particular, the proton conductivity of SPAEKS-50 membrane is 66.5 mS/cm, which is slightly higher than Nafion117 membrane (63.5 mS/cm) measured under the same conditions. All membranes show much lower methanol permeability and much higher proton selectivity than Nafion 117 membrane. Especially, proton selectivity of SPAEKS-40 membrane (13.8 x 104 S s cm-3) is about 4 times higher than that of Nafion 117 membrane (3.6 x 104 S s cm-3). The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Synthetic Route of 80-07-9

The Article related to sulfonated polyaryl ether ketone sulfone oxidative stability proton conductivity, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Synthetic Route of 80-07-9

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

Igder, Aghil; Pye, Scott; Mohammed Al-Antaki, Ahmed Hussein; Keshavarz, Alireza; Raston, Colin L.; Nosrati, Ata published an article in 2020, the title of the article was Vortex fluidic mediated synthesis of polysulfone.Application In Synthesis of 4,4′-Sulfonylbis(chlorobenzene) And the article contains the following content:

Polysulfone (PSF) was prepared under high shear in a vortex fluidic device (VFD) operating in confined mode, and its properties compared with that prepared using batch processing. This involved reacting the pre-prepared disodium salt of bisphenol A (BPA) with a 4,4′-dihalodiphenylsulfone under anhydrous conditions. SEM (SEM) established that in the thin film microfluidic platform, the PSF particles are sheet-like, for short reaction times, and fibrous for long reaction times, in contrast to spherical like particles for the polymer prepared using the conventional batch synthesis. The operating parameters of the VFD (rotational speed of the glass tube, its tilt angle and temperature) were systematically varied for establishing their effect on the mol. weight (Mw), glass transition temperature (Tg) and decomposition temperature, featuring gel permeation chromatog. (GPC), differential scanning calorimetry (DSC) and thermal gravimetric anal. (TGA) resp. The optimal VFD prepared PSF was obtained at 6000 rpm rotational speed, 45° tilt angle and 160°C, for 1 h of processing with Mw ∼10 000 g mol-1, Tg ∼158°C and decomposition temperature ∼530°C, which is comparable to the conventionally prepared PSF. The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Application In Synthesis of 4,4′-Sulfonylbis(chlorobenzene)

The Article related to polysulfone vortex fluidic device morphol thermal stability, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Application In Synthesis of 4,4′-Sulfonylbis(chlorobenzene)

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

On December 31, 1996, Peng, Xioojun; Pan, Shiwei; Zhou, Zhuohua published an article.SDS of cas: 15258-72-7 The title of the article was GC/MS study of synthesis of α,α,2,6-tetrachlorotoluene. And the article contained the following:

The chlorination mechanism of 2-chloro-6-nitrotoluene (A) to α,α,2,,6-tetrachlorotoluene (D) has been studied by CM/MS. It is found that Cl attacks α-H of A at first with the formation of an intermediate, α,2-dichloro-6-nitro-toluene (B) which turns subsequently to α,2,6-trichlorotoluene (C) through denitrochlorination. C is then chlorinated on α-H and forms D. The experimental process involved the reaction of 1-Chloro-2-(chloromethyl)-3-nitrobenzene(cas: 15258-72-7).SDS of cas: 15258-72-7

The Article related to chlorotoluene preparation, toluene tetrachloro preparation, chloronitrotoluene chlorination gc ms, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Halides and Halonium Compounds and other aspects.SDS of cas: 15258-72-7

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

On April 17, 2020, Guo, Weicong; Liu, Qinzhe; Jiang, Jijun; Wang, Jun published an article.Related Products of 14602-86-9 The title of the article was Development of a C2-Symmetric Chiral aza Spirocyclic Diol. And the article contained the following:

A C2-sym. chiral spirocyclic diol aza-SPINOL containing a spirooxindole scaffold has been designed, synthesized, and optically resolved. The product could be synthesized on gram scale in an overall yield of 22%. Moreover, elaborations of aza-SPINOL to other chiral ligands as well as the preliminary investigation of the related bisphosphine ligand in the desymmetrization of bisallylic amide were reported. The experimental process involved the reaction of (1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl carbonochloridate(cas: 14602-86-9).Related Products of 14602-86-9

The Article related to chiral aza spirocyclic diol enantioselective preparation, Heterocyclic Compounds (One Hetero Atom): Spiro Compounds With One Hetero Atom In Each Ring and other aspects.Related Products of 14602-86-9

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

On April 1, 2011, Joshi, S. N.; Vyas, S. M.; Duffel, M. W.; Parkin, S.; Lehmler, H.-J. published an article.Recommanded Product: 1,5-Dichloro-3-methoxy-2-nitrobenzene The title of the article was Synthesis of sterically hindered polychlorinated biphenyl derivatives. And the article contained the following:

A series of sterically hindered (methoxylated) polychlorinated biphenyl derivatives were synthesized using the Suzuki and the Ullmann coupling reactions. The Suzuki coupling with Pd(dba)2/2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (DPDB) gave better yields (65-98%) compared to the classic Ullmann coupling reaction (20-38%). Despite the reactive catalyst system, no significant coupling with aromatic chlorine substituents was observed Crystal structure anal. of four PCB derivatives revealed solid state dihedral angles ranging from 69.7° to 81.0°, which indicates that these highly ortho-substituted PCB derivatives have some conformational flexibility. The experimental process involved the reaction of 1,5-Dichloro-3-methoxy-2-nitrobenzene(cas: 74672-01-8).Recommanded Product: 1,5-Dichloro-3-methoxy-2-nitrobenzene

The Article related to biphenyl polychlorinated preparation suzuki ullmann, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Halides and Halonium Compounds and other aspects.Recommanded Product: 1,5-Dichloro-3-methoxy-2-nitrobenzene

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

On August 25, 2014, Oh, Cheon Rim; Lee, Won Jung; Kim, Yeong Seong; Lee, Min Seon; Lee, Seung Min; Jeon, Eun Ju; Choi, Don Su; Moon, Bong Seok; So, In Yeong; Lee, Jae Yeol; Ju, Seong Hu published a patent.HPLC of Formula: 93012-36-3 The title of the patent was Preparation of phenanthrene compounds as organic electroluminescence device materials. And the patent contained the following:

Disclosed are compounds I [Ar1-Ar3 are independently (un)substituted alkyl, aryl, heterocyclyl, arylamino, etc.; R1-R6 are independently H, CN, (un)substituted alkyl, alkoxy, etc.; n is 0-3; with the proviso that R1-R6 are not hydrogen at the same time; when Ar2 and Ar3 are aryl, at least one of Ar2 and Ar3 is (un)substituted anthracene, pyrene, diphenylfluorene, etc.]. Example compound II was prepared by the sequential palladium-catalyzed coupling reaction of compound III with pyren-2-ylboronic acid and diphenylamine in 25% yield for two steps. Blue electroluminescent device comprising an invention compound (light-emitting layer material) showed improvements in efficiency and life span compared to device using previously reported compound (CBP). The experimental process involved the reaction of 5,5′-Dimethyl-[1,1′-biphenyl]-2,2′-dicarboxylic acid(cas: 93012-36-3).HPLC of Formula: 93012-36-3

The Article related to phenanthrene preparation organic electroluminescence device material, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Anthracenes and Phenanthrenes and other aspects.HPLC of Formula: 93012-36-3

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