Category: chlorides-buliding-blocks

Mushtaq, Nafeesa; Sidra, Lala Rukh; Chen, Guofei; Tang, Yongmei; Xu, Lubo; Fang, Xingzhong published the artcile< Synthesis of cardo containing asymmetric poly(ether-naphthalimide-phthalimide)s>, Synthetic Route of 118-45-6, the main research area is cardo asym polyethernaphthalimidephthalimide.

A series of cardo based asym. polyimides containing bulky rigid naphthalimide and phthalimide groups were prepared from asym. monomer bishaloimide and bisphenols by solution polycondensation. Bishalo(naphthalimide-phthalimide) monomers containing different terminal leaving groups (Cl, F, NO2) were synthesized, and the reactivity difference of these monomers was compared for the successful synthesis of polyimides. The inherent viscosities of the polyimides were in the range 0.51 – 0.60 dL g-1 in N-methyl-2-pyrrolidone at 30 °C. These polyimides demonstrated good organosoly. and mech. properties with tensile strengths of 93 – 120 MPa, tensile moduli of 3.5 – 5.3 GPa and elongations at break of 2.8% – 4.3%. The polyimides showed high glass transition temperatures (Tg) ranging from 330 to 363 °C. The 10% weight loss (T10%) of asym. polyimides reached 436 – 500 °C in nitrogen and 417 – 476 °C in air. The water uptake of the polyimides was in the range 0.35% – 0.72%. © 2017 Society of Chem. Industry.

Polymer International published new progress about Cardo polymers, polyether-polyimides Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 118-45-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H3ClO3, Synthetic Route of 118-45-6.

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

Cyganowski, Piotr published the artcile< Fully recyclable gold-based nanocomposite catalysts with enhanced reusability for catalytic hydrogenation of p-nitrophenol>, Category: chlorides-buliding-blocks, the main research area is nitrophenol hydrogenation recyclable gold nanocomposite catalyst reusability.

Nanocomposite (NC) materials, which demonstrate catalytic activity under mild conditions, have garnered considerable attention due to the environmental hazards associated with aromatic nitro compounds Herein, a novel in-situ synthesis of NCs with zero-valent Au (Au°) is proposed. These materials are based on suspension copolymers with mol. reactors that enable the fabrication of Au° and the enhancement of both the catalytic activity and reusability. NCs were obtained using amino-based nanoreactors (3-14 mmol per g of a polymer) derived from polyethyleneimine (PEI), 1-(2-hydroxyethyl)piperazine (HEP), 1,4-bis(3-aminopropyl)piperazine (APP). The resultant Au@PEI, Au@HEP, and Au@APP NCs were investigated using optical microscopy, SEM, and TEM. Addnl., the physiochem. structures of both the polymeric matrix and Au° were evaluated using, i.a., FT-IR and XRD. The so-obtained NCs were used as nanocatalysts (NCats) for the catalytic hydrogenation of 4-nitrophenol (4-NP) under mild conditions. The method developed for the synthesis of NCs produced gold-based NCats with 25-37% Au° content. The synergism between the polymeric matrix and Au° enabled the hydrogenation of 4-NP within approx. 30-38 min with a rate constants of 0.071 min-1 (Au@HEP) and 0.028 min-1 (Au@APP) and, resp. The spherical millimetric morphol. of the polymeric support facilitated the facile recyclability of NCats that maintained their catalytic activity for more than 10 cycles of 4-NP reduction

Colloids and Surfaces, A: Physicochemical and Engineering Aspects published new progress about Hydrogenation. 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

Ge, Qianqian; Liang, Xian; Ding, Liang; Hou, Jianqiu; Miao, Jibin; Wu, Bin; Yang, Zhengjin; Xu, Tongwen published the artcile< Guiding the self-assembly of hyperbranched anion exchange membranes utilized in alkaline fuel cells>, Safety of 1-(Chloromethyl)-4-vinylbenzene, the main research area is hyperbranched polyvinylbenzyl chloride diamine crosslinked anion exchange membrane; self assembly hyperbranched anion exchange membrane alk fuel cells.

Anion exchange membrane fuel cells (AEMFCs) can efficiently convert chem. energy into electricity at high pH. However, as the critical component, the existing anion exchange membranes (AEMs), cannot have both high stability and high conductivity, which is intrinsic to the conventional linear AEMs. To address this, here we report hyperbranched AEMs cross-linked by diamines and proposed a strategy to guide the self-assembly of hyperbranched AEMs, thereby regulating the membrane microphase morphol. We found that the chain length of the diamine crosslinking agents plays a significant role in guiding the formation of microphase separated morphol. inside hyperbranched AEMs and influences eventually the membrane conductivity and stability. The hyperbranched membrane HBM-6C exhibits the most distinct microphase separated morphol., leading to high conductivity and improved alk. stability. For instance, the hydroxide conductivity of HBM-6C membrane is 27.18 mS cm-1 at 30 °C, 2.7 times of the linear counterpart membrane [PTMVPMA][OH] (10 mS cm-1). A H2/O2 AEMFC assembled with HBM-6C membrane herein demonstrates a maximum power d. of 97 mW cm-2 at a c.d. of 190 mA cm-2. Our results would pave the way towards AEMs with novel chain architecture and stimulate further improvement in AEMFC performance.

Journal of Membrane Science published new progress about Alkaline fuel cells. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Safety of 1-(Chloromethyl)-4-vinylbenzene.

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

Kubota, Chihiro; Morita, Daisuke; Fujita, Keisuke; Yamamoto, Sonoka; Suzuki, Toyoko; Okano, Kentaro; Funahashi, Masahiro; Horie, Masaki; Mori, Atsunori published the artcile< Thermally-induced doping of the regioregular polythiophene bearing alkylene spacered benzene-sulfonate group at the side chain>, Recommanded Product: 1-Chloropyrrolidine-2,5-dione, the main research area is regioregular polythiophene alkylene spacered benzene sulfonate conductivity.

Regioregular polythiophene bearing a benzenesulfonate group, which involved an alkylene spacer between thiophene and benzene ring, was synthesized. The obtained polythiophene was shown to improve its conductivity by heating the polymer thin film through the transformation of the ester group into the corresponding sulfonic acid.

Heterocycles published new progress about Electric current-potential relationship. 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Recommanded Product: 1-Chloropyrrolidine-2,5-dione.

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

Shi, Xiu-dong; Ge, Bing-chen; Xu, Jiang-ping; Zhou, Zhong-zhen published the artcile< Synthesis, crystal structure and antitumor activity of 6-chloro-1-((6-chloropyridin-3-yl)methyl)-3-phenyl-1H-benzofuro[3,2-c]pyrazole>, Computed Properties of 22717-55-1, the main research area is benzofuropyrazole preparation crystal structure antitumor activity.

The title compound 6-chloro-1-((6-chloropyridin-3-yl)methyl)-3-phenyl-1H-benzofuro[3,2-c]pyrazole (I, C21H13Cl2N3O, Mr = 394.26) was synthesized and characterized by elemental anal., 1H NMR, 13C NMR and X-ray single-crystal diffraction. The structure reveals that the crystal belongs to the triclinic system, space group P1 with a = 7.8829(8), b = 10.3281(10), c = 11.7615(12)Å, α = 83.5552(2), β = 79.921(2), γ = 70.189(2) degree, V = 885.54(15)Å3, Z = 2, Dc = 1.479 g/cm3, μ = 0.383 mm-1, F(000) = 404, R = 0.0538 and wR = 0.1335 for 2453 observed reflections with I>2σ(I). The result revealed that the crystal structure of the title compound I was stabilized by three C-Cl···π interactions and π···πstacking interaction. In addition, the preliminary investigation showed that I exhibited remarkably good antitumor activity against the MCF-7 and A549 cell lines.

Chinese Journal of Structural Chemistry published new progress about Antitumor agents. 22717-55-1 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H7ClO3, Computed Properties of 22717-55-1.

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

Chien, Chih-Wei; Liu, Kwang-Ting; Lai, Chung K. published the artcile< Substituent effects in columnar β-diketonate metallomesogens>, Computed Properties of 3964-57-6, the main research area is diketonate copper palladium complex homologous series columnar mesophase preparation; crystal structure copper palladium diketonate complex; substituent effect copper palladium diketonate complex mesophase; liquid crystal copper palladium diketonate columnar mesophase preparation; metallomesogen diketonate columnar mesophase preparation.

A systematic study of the mesomorphic properties of two homologous series of copper(II) and palladium(II) complexes (1a-b) derived from unsym. β-diketonate derivatives (I) containing a variety of functional substituents (X = H, CH3, C2H5, OCH3, Cl, Br, I, CN) on the Ph ring is reported. These disk-like mols. all contain eight n-octyloxy chains, required for the formation of columnar phases appended to the central β-diketonate core. All complexes exhibited columnar phases studied by DSC, polarized optical microscopy and powder x-ray diffraction. The mesomorphic results indicated that all compounds formed stable enantiotropic columnar mesophases, and the formation of columnar phases was strongly dependent on the electronic and/or the steric factors of the substituents. For compounds containing bulky substituents (i.e. X = Me, Et) a rectangular columnar phase (Colr) was observed, however, other compounds containing electron-withdrawing substituents (i.e. X = Cl, Br, I) exhibited a hexagonal columnar phase (Colh). Most of the palladium(II) complexes, except for X = CH3 and OCH3 derivatives, have lower clearing temperatures than those of the copper(II) analogs, and this is probably due to a weaker mol. interaction between the cores in the palladium(II) complexes. Lattice constants for these two types of compound obtained by powder x-ray diffraction are insensitive to the metal center incorporated. These values were all relatively close in magnitude, which indicated that the two structures were quite similar. A satisfactory linear relation with a correlation coefficient of 0.974 between the clearing temperatures and the Hammett σp constants of substituents was obtained only for the copper complexes.

Journal of Materials Chemistry published new progress about Crystal structure. 3964-57-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H7ClO3, Computed Properties of 3964-57-6.

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

Wang, Wenyuan; Chen, Hongjin; Yue, Youfeng; Zhang, Rui; Liu, Jian published the artcile< Electropolymerization of V-shape D-A-D type monomers for efficient and tunable electrochromics>, Recommanded Product: 4,5-Dimethoxybenzene-1,2-diamine, the main research area is electrochromic triphenylamine quinoxaline derivative preparation electrochem polymerization.

Five novel donor-acceptor-donor (D-A-D) type monomers (VQ1 ∼ VQ5) with a common V-shape configuration have been developed and further electropolymerized for electrochromic applications. The monomers were designed by introducing two triphenylamine groups into the 2- and 3- position of the quinoxaline derivates, resp. These redox-active monomers could be electrodeposited robustly on the ITO electrodes in an electrolyte solution via the oxidative coupling reactions between triphenylamine radical cations. The obtained thin polymer films (PVQ1 ∼ PVQ5) exhibited reversible redox behaviors and obvious color changes upon voltage variation. All these polymers exhibited excellent electrochromic performances involving high optical contrast (over 70%), short response time (less than 2 s) and high coloration efficiency (over 200 cm2 C-1). Moreover, the optical properties of these polymers in both neutral state and oxidation state can be tuned by variation of the addnl. substituents on the quinoxaline parts, resp.

Dyes and Pigments published new progress about Absorption spectra. 27841-33-4 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H12N2O2, Recommanded Product: 4,5-Dimethoxybenzene-1,2-diamine.

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

Lutterbeck, Carlos Alexandre; Kern, Deivid Ismael; Machado, Enio Leandro; Kuemmerer, Klaus published the artcile< Evaluation of the toxic effects of four anti-cancer drugs in plant bioassays and its potency for screening in the context of waste water reuse for irrigation>, Product Details of C7H17Cl2N2O3P, the main research area is Lactuca Allium seedling anticancer drug toxicity potency; Anti-cancer drugs; Cytotoxicity; Genotoxicity; Mutagenicity; Phytotoxicity.

Anti-cancer drugs are compounds that are of high environmental relevance because of their lack of specific mode of action. They can be extremely harmful to living organisms even at low concentrations The present study evaluated the toxic effects of four frequently used anti-cancer drugs against plant seedlings, namely Cyclophosphamide (CP), Methotrexate (MTX), 5-Fluorouracil (5-FU) and Imatinib (IM). The phytotoxicity experiments were performed with Lactuca sativa seedlings whereas cytotoxicity, genotoxicity and mutagenicity investigations were performed with the well-established Allium cepa assays. MTX was the most phytotoxic compound, followed by 5-FU, CP and IM. Significant differences in the Mitotic Indexes (MI) were observed in three of the studied compounds (MTX, 5-FU and CP), indicating potential cytotoxic activity of these substances. Chromosome aberrations were registered in cells that were exposed to 5-FU, CP and IM. All the four compounds caused the formation of micronucleated cells indicating mutagenic potential. Besides, the assays performed with MTX samples presented a high number of cell apoptosis (cell death). Although it is unlikely that the pharmaceuticals concentrations measured in the environment could cause lethal effects in plants, the obtained results indicate that these compounds may affect the growth and normal development of these plants. So, both tests can constitute important tools for a fast screening of environmental contamination e.g. in the context of the reuse of treated wastewater and biosolids of agricultural purpose.

Chemosphere published new progress about Allium cepa. 6055-19-2 belongs to class chlorides-buliding-blocks, and the molecular formula is C7H17Cl2N2O3P, Product Details of C7H17Cl2N2O3P.

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