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4.232 Aktuelle Fachpublikationen zum Thema temperature

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Influence of imidazolium based green solvents on volume phase transition temperature of crosslinked poly(N-isopropylacrylamide-co-acrylic acid) hydrogel

16.12.2014 | Chi-Jung Chang; P. Madhusudhana Reddy; Shih-Rong Hsieh; Hsin-Chun Huang, Soft Matter, 2014

The volume phase transition temperature (VPTT) of crosslinked poly(N-isopropylacrylamide-co-acrylic acid) (PNIPAM-co-AA) hydrogel in water in the presence of five imidazolium based ionic liquids (ILs) was studied. The VPTT of PNIPAM-co-AA hydrogel can be modulated to different extents by the ...

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Fabrication and Evaluation of Porous Ti-HA Bio-Nanomaterial by Leaching Process

14.12.2014 | Author(s): A.M. Omran , Kee Do Woo , Duck Soo Kang , G.T. Abdel-Gaber , H. Fouad , Hany S. Abdo , Khalil Abdel ..., Arabian Journal of Chemistry, 2014

Publication date: Available online 8 December 2014 Source:Arabian Journal of Chemistry Author(s): A.M. Omran , Kee Do Woo , Duck Soo Kang , G.T. Abdel-Gaber , H. Fouad , Hany S. Abdo , Khalil Abdelrazek Khalil A porous surface of Ti-HA composite was successfully fabricated by pulsed ...

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Partial characterization of chayotextle starch composites with added polyvinyl alcohol

12.12.2014 | Montserrat B. Cotonieto‐Morales, Heidi M. Palma‐Rodríguez, Norberto Chavarría‐Hernández, Juan P. Hernández‐Uribe, Pa ..., Starch - Stärke, 2014

Composites of chayotextle starch (ChS), cellulose (C), cellulose nanoparticles (CN), and polyvinyl alcohol (PVOH) were cast and characterized in physicochemical, mechanical, barrier, and morphological studies. Low mechanical property values were observed in ChS composites. In general, the ...

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Synthesis and Characterization of Sodium 5‐Chlorotetrazolate Dihydrate by Chlorination of 1H‐Tetrazole

12.12.2014 | Xiaojun Wang, Jiping Liu, Dong Wang, Xiaolu Bi, Wei Zhao, Zeitschrift für anorganische und allgemeine Chemie, 2014

Abstract A convenient, simple work‐up procedure and low‐cost chlorination method was developed to prepare sodium 5‐chlorotetrazolate dihydrate by chlorination of self‐prepared 1H‐tetrazole with sodium hypochlorite solution. Several organic extracting solvents and factors (raw material ratio, ...

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Direct Arylation of Substituted Pyridines with Arylboronic Acids Catalyzed by Iron(II) Oxalate

12.12.2014 | Yibo Huang, Dan Guan, Liang Wang, Chinese Journal of Chemistry, 2014

Abstract The direct arylation of substituted pyridines with several arylboronic acids has been developed. This transformation could proceed readily at ambient temperature using inexpensive reagents: iron(II) oxalate as a catalyst, potassium persulfate as a co‐oxidant, which can afford the ...

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Design, Synthesis and Characterization of Coordination Polymer from [Cu(DMF)4(SCN)2] as a Precursor

12.12.2014 | Xiaotong Liu, Feng Zhou, Qiuxuan Zhou, Lihua Wang, Yong Zhang, Qingfeng Xu, Jianmei Lu, Chinese Journal of Chemistry, 2014

Abstract This paper is focused on investigation of coordination polymers constructed by Cu(II) and rigid pyridyl ligands, such as 4,4′‐bipyridyl‐1,2,4‐triazole (Hpytz) and 1,10‐phenanthroline (phen) from a mononuclear precursor [Cu(DMF)4(NCS)2] (1). As expected, the complex was self‐assembled ...

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Highly Efficient Iodine Capture by Layered Double Hydroxides Intercalated with Polysulfides

12.12.2014 | Shulan Ma; Saiful M. Islam; Yurina Shim; Qingyang Gu; Pengli Wang; Hao Li; Genban Sun; Xiaojing Yang; Mercouri G. Ka ..., Chemistry of Materials, 2014

We demonstrate strong iodine (I2) vapor adsorption using Mg/Al layered double hydroxide (MgAl-LDH) nanocomposites intercalated with polysulfide (Sx2–) groups (Sx-LDH, x = 2, 4, 6). The as-prepared LDH/polysulfide hybrid materials display highly efficient iodine capture resulting from the reducing ...

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Materials, Vol. 7, Pages 8024-8036: Enhanced Photocatalytic Degradation of Methyl Orange Dye under the Daylight Irradiation over CN-TiO2 Modified with OMS-2

12.12.2014 | Hassan, Mohamed Elfatih; Chen, Jing ; Liu, Guanglong ; Zhu, Duanwei ; Cai, Jianbo, Materials, 2014

In this study, CN-TiO2 was modified with cryptomelane octahedral molecular sieves (OMS-2) by the sol-gel method based on the self-assembly technique to enhance its photocatalytic activity under the daylight irradiation. The synthesized samples were characterized by X-ray diffraction (XRD), UV-vis ...

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Electronic Effects of Ligand Substitution on Spin Crossover in a Series of Diiminoquinonoid-Bridged FeII2 Complexes

12.12.2014 | Jesse G. Park; Ie-Rang Jeon; T. David Harris, Inorganic Chemistry, 2014

A series of four isostructural FeII2 complexes, [(TPyA)2Fe2(XL)]2+ (TPyA = tris(2-pyridylmethyl)amine; XL2– = doubly deprotonated form of 3,6-disubstituted-2,5-dianilino-1,4-benzoquinone; X = H, Br, Cl, and F), were synthesized to enable a systematic study of electronic effects on spin crossover ...

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Quantitative Evaluation on Activated Property-Tunable Bulk Liquid Water with Reduced Hydrogen Bonds Using Deconvoluted Raman Spectroscopy

12.12.2014 | Hsiao-Chien Chen; Fu-Der Mai; Kuang-Hsuan Yang; Liang-Yih Chen; Chih-Ping Yang; Yu-Chuan Liu, Analytical Chemistry, 2014

Interesting properties of water with distinguishable hydrogen-bonding structure on interfacial phase or in confined environment have drawn wide attentions. However, these unique properties of water are only found within the interfacial phase and confined environment, thus, their applications are ...

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