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5.254 Aktuelle Fachpublikationen zum Thema temperature

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A Study on a Prepolymerization Process of Aromatic‐Contained Polyamide Copolymers PA(66‐co‐6T) via One‐Step Polycondensation

16.04.2015 | Cai‐Liang Zhang, Li Wan, Xue‐Ping Gu, Lian‐Fang Feng, Macromolecular Reaction Engineering, 2015

A facile one‐step polycondensation approach to prepare a prepolymer of aromatic‐contained polyamide using terephthalic acid (PTA), adipic acid (ADA), hexamethylenediamine (HMDA) as raw materials was explored systematically. The prepolymerization process was divided into four stages: formation ...

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Parallel mechanisms of polypyrrole self-discharge in aqueous media

16.04.2015 | H. Olsson; Z. Qiu; M. Strømme; M. Sjödin, Physical Chemistry Chemical Physics, 2015

In this report we investigate the self-discharge in a positively charged polypyrrole–cellulose composite material in water solution. Rate constants for the self-discharge reaction are determined by potential step methods and their dependence on pH, temperature and applied potential are reported. ...

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Performance polybenzoxazine membrane and mixed matrix membrane for ethanol purification via pervaporation applications

15.04.2015 | Panupong Chuntanalerg, Santi Kulprathipanja, Thanyalak Chaisuwan, P. Aungkavattana, K. Hemra, Sujitra Wongkasemjit, Journal of Chemical Technology & Biotechnology, 2015

Abstract BACKGROUND Polybenzoxazine (PBZ) membranes have caught great attention for serving as a high performance membrane for pervaporation process owing to their high mechanical properties, high chemical resistance, high thermal stability, and low synthesis cost. This study aims to develop ...

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IJMS, Vol. 16, Pages 8454-8489: Changes of Water Hydrogen Bond Network with Different Externalities

15.04.2015 | Zhao, Lin ; Ma, Kai ; Yang, Zi, International Journal of Molecular Sciences, 2015

It is crucial to uncover the mystery of water cluster and structural motif to have an insight into the abundant anomalies bound to water. In this context, the analysis of influence factors is an alternative way to shed light on the nature of water clusters. Water structure has been tentatively ...

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Synthesis, Crystal Structure, Thermal and Explosive Properties of [Cd(SCZ)3(H2O)](PA)2·3H2O (SCZ = Semicarbazide, PA = Picrate)

14.04.2015 | Wen‐Chao Tong, Rui Zhang, Lin‐Jun Xue, Rui Xu, Li‐Nong Zhang, Tong‐Lai Zhang, Li Yang, Zeitschrift für anorganische und allgemeine Chemie, 2015

Abstract The heptacoordinate transition metal coordination compound [Cd(SCZ)3(H2O)](PA)2·3H2O (1) with the ligand semicarbazide (SCZ) and the counteranion picrate (PA) was synthesized and characterized by elemental analysis and FTIR spectroscopy. Single‐crystal X‐ray diffraction analysis ...

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Determination of Quality and Spoilage of Milk by Synthesized Polypyrrole–Ag Nanocomposite Fiber at Room Temperature

14.04.2015 | Sajad Pirsa, Mohsen Zndi, Hadi Almasi, Journal of Food Process Engineering, 2015

Abstract Conducting polypyrrole/silver (PPy–Ag) nanocomposite was synthesized by dip coating polymerization of pyrrole in the presence of silver nitrate as precursor and FeCl3 as oxidant on the polyester fibers at room temperature. Nanocomposite was characterized by Fourier transform infrared ...

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Thermal versus Microwave Inactivation Kinetics of Lipase and Lipoxygenase from Wheat Germ

14.04.2015 | Bin Xu, Li Kun Wang, Wen Juan Miao, Qi Fei Wu, Yan Xia Liu, Yilin Sun, Chao Gao, Journal of Food Process Engineering, 2015

Abstract The inactivation kinetics of enzymes is an important way to reveal the mechanism of enzyme inactivation by microwaves. In this paper, lipase (LA) and lipoxygenase (LOX) were treated by both microwave irradiation and conventional heating. A temperature‐controlled water bath was used ...

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Sensors, Vol. 15, Pages 8464-8480: Detection of Atmospheric Water Deposits in Porous Media Using the TDR Technique

13.04.2015 | Nakonieczna, Anna ; Kafarski, Marcin ; Wilczek, Andrzej ; Szypłowska, Agnieszka ; Janik, Grzegorz ; Albert, Małgorza ..., Sensors, 2015

Investigating the intensity of atmospheric water deposition and its diurnal distribution is essential from the ecological perspective, especially regarding dry geographic regions. It is also important in the context of monitoring the amount of moisture present within building materials in ...

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Sensors, Vol. 15, Pages 8481-8498: Noninvasive and Real-Time Plasmon Waveguide Resonance Thermometry

13.04.2015 | Zhang, Pengfei ; Liu, Le ; He, Yonghong ; Zhou, Yanfei ; Ji, Yanhong ; Ma, Hui, Sensors, 2015

In this paper, the noninvasive and real-time plasmon waveguide resonance (PWR) thermometry is reported theoretically and demonstrated experimentally. Owing to the enhanced evanescent field and thermal shield effect of its dielectric layer, a PWR thermometer permits accurate temperature sensing ...

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Synthesis, crystal structure and characterization of trivacant-Keggin-polyoxometalate-based carbonyl manganese derivative

12.04.2015 | Author(s): Yinbao Liu , Yanhui Zhang , Pengtao Ma , Yongkang Dong , Jingyang Niu , Jingping Wang, Inorganic Chemistry Communications, 2015

Publication date: June 2015 Source:Inorganic Chemistry Communications, Volume 56 Author(s): Yinbao Liu , Yanhui Zhang , Pengtao Ma , Yongkang Dong , Jingyang Niu , Jingping Wang A novel trivacant polyoxometalate-based carbonyl manganese derivative, ...

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