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4.323 Aktuelle Fachpublikationen zum Thema temperature

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Electron paramagnetic resonance (EPR) study of free radicals in irradiated zinc poly methacrylate

01.03.2015 | Author(s): S. Galindo , F. Ureña-Núñez, Radiation Physics and Chemistry, 2015

Publication date: June 2015 Source:Radiation Physics and Chemistry, Volume 111 Author(s): S. Galindo , F. Ureña-Núñez We report the analysis of the X-band EPR spectrum of the free radical species formed in Zn(II) polymethacrylate (Zn(II) PMA), after degradation was induced in this polymer ...


The influence of KOH concentration, oxygen partial pressure and temperature on the oxygen reduction reaction at Pt electrodes

01.03.2015 | Author(s): Wen-Yi Yan , Shi-Li Zheng , Wei Jin , Zhong Peng , Shao-Na Wang , Hao Du , Yi Zhang, Journal of Electroanalytical Chemistry, 2015

Publication date: 15 March 2015 Source:Journal of Electroanalytical Chemistry, Volume 741 Author(s): Wen-Yi Yan , Shi-Li Zheng , Wei Jin , Zhong Peng , Shao-Na Wang , Hao Du , Yi Zhang In this paper, cyclic voltammetry (CV), linear sweep voltammetry (LSV) and rotating ring-disk ...


Photocatalytic removal of phenol using titanium dioxide deposited on different substrates: Effect of inorganic oxidants

01.03.2015 | Author(s): Akpénè A. Dougna , Bertrand Gombert , Tomkouani Kodom , Gbandi Djaneye-Boundjou , Sahidou O.B. Bouka ..., Journal of Photochemistry and Photobiology A: Chemistry, 2015

Publication date: Available online 21 February 2015 Source:Journal of Photochemistry and Photobiology A: Chemistry Author(s): Akpénè A. Dougna , Bertrand Gombert , Tomkouani Kodom , Gbandi Djaneye-Boundjou , Sahidou O.B. Boukari , Nathalie Karpel Vel Leitner , Limam M. Bawa ...


Structure Property Relationship in BaTiO3–Na0.5Bi0.5TiO3–Nb2O5–NiO X8R System

28.02.2015 | Yue Sun, Hanxing Liu, Hua Hao, Zhe Song, Shujun Zhang, Journal of the American Ceramic Society, 2015

A novel BaTiO3–Na0.5Bi0.5TiO3–Nb2O5–NiO (BT‐NBT‐Nb‐Ni) system that meets the X8R specification (−55°C–150°C, ΔC/C≤±15%) of multilayer ceramic capacitors (MLCCs) was fabricated, with a maximum dielectric constant of 2350 at room temperature (25°C). Core–shell microstructure was observed by ...


Investigation of Suzuki–Miyaura catalyst‐transfer polycondensation of AB‐type fluorene monomer using coordination‐saturated aryl Pd(II) halide complexes as initiators

27.02.2015 | Zilong Zhang, Pan Hu, Xiao Li, Hongmei Zhan, Yanxiang Cheng, Journal of Polymer Science Part A: Polymer Chemistry, 2015

ABSTRACT Novel triarylamine‐based coordination‐saturated aryl Pd(II) halide complexes ligated by PEt3, PCy3, and P(o‐tol)3 were successfully synthesized by direct oxidative addition of aryl halide to the corresponding Pd(0) precursors. Suzuki–Miyaura coupling polymerization of ...


Coherent molecular vibrational dynamics of CH2 stretching modes in polyethylene studied by femtosecond‐CARS

27.02.2015 | Takanori Kozai, Yuya Kayano, Takahito Aoi, Noriaki Tsurumachi, Shunsuke Nakanishi, Journal of Raman Spectroscopy, 2015

We have studied the coherent molecular vibrational dynamics of CH2 stretching modes in polyethylene by time‐resolved femtosecond coherent anti‐Stokes Raman spectroscopy. We observed that the coherent vibrational relaxation of symmetric CH2 stretching modes in polyethylene at room temperature is ...


Study on the interaction between ginsenoside Rh2 and calf thymus DNA by spectroscopic techniques

27.02.2015 | Dudu Wu, Zhi Chen, Luminescence, 2015

Abstract The interaction between ginsenoside Rh2 (G‐Rh2) and calf thymus DNA (ctDNA) was investigated by spectroscopic methods including UV–vis absorption, fluorescence and circular dichroism (CD) spectroscopy, coupled with DNA melting techniques and viscosity measurements. Stern–Volmer plots ...


Conformational Changes in a Hyperthermostable Glycoside Hydrolase: Enzymatic Activity Is a Consequence of the Loop Dynamics and Protonation Balance

27.02.2015 | Leandro C. de Oliveira et al., PLoS ONE, 2015

by Leandro C. de Oliveira, Viviam M. da Silva, Francieli Colussi, Aline D. Cabral, Mario de Oliveira Neto, Fabio M. Squina, Wanius Garcia Endo-β-1, 4-mannanase from Thermotoga petrophila (TpMan) is a modular hyperthermostable enzyme involved in the degradation of mannan-containing ...


Low Temperature Growth of Graphene on Glass by Carbon-Enclosed Chemical Vapor Deposition Process and Its Application as Transparent Electrode

27.02.2015 | Yu-Ze Chen; Henry Medina; Hung-Wei Tsai; Yi-Chung Wang; Yu-Ting Yen; Arumugam Manikandan; Yu-Lun Chueh, Chemistry of Materials, 2015

A novel carbon-enclosed chemical vapor deposition (CE-CVD) to grow high quality monolayer graphene on Cu substrate at a low temperature of 500 °C was demonstrated. The quality of the grown graphene was investigated by Raman spectra, and the detailed growth mechanism of high quality graphene by ...


Insights into the use of zinc–mannitol alkoxide as a novel thermal stabilizer for rigid poly(vinyl chloride)

26.02.2015 | Ming Fu, Degang Li, Hao Liu, Jun Zhang, Journal of Applied Polymer Science, 2015

ABSTRACT Zinc–mannitol alkoxide (Zn–Man) was synthesized through alcohol exchange reaction, and investigated by means of Fourier transform infrared spectroscopy and elemental analysis. The thermal stability of Zn–Man for rigid poly(vinyl chloride) (PVC) was evaluated by Congo red testing, ...


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