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2.583 Aktuelle Fachpublikationen zum Thema temperature

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High‐temperature‐resistant polymer gel system with metal–organic mixed cross‐linking agents

16.04.2015 | Xiaoyun Zhang, Sisi Zhang, Liang Li, Ruonan Wu, Dongming Liu, Jihui Wu, Wei Wu, Journal of Applied Polymer Science, 2015

ABSTRACT A high‐temperature (200°C)‐resistant polymer gel system was developed from partially hydrolyzed polyacrylamide (HPAM), chromium lactate (CrL), and water‐soluble phenol/formaldehyde resin (WPF) mixed cross‐linkers. Rheological measurements indicated that the gelation process of the gel ...

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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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Effect of Al3+ substitution on the structural, magnetic, and electric properties in multiferroic Bi2Fe4O9 ceramics

13.04.2015 | Author(s): S. Huang , L.R. Shi , Z.M. Tian , S.L. Yuan , C.M. Zhu , G.S. Gong , Y. Qiu, Journal of Solid State Chemistry, 2015

Publication date: July 2015 Source:Journal of Solid State Chemistry, Volume 227 Author(s): S. Huang , L.R. Shi , Z.M. Tian , S.L. Yuan , C.M. Zhu , G.S. Gong , Y. Qiu Structural, magnetic, and electric properties have been investigated in polycrystalline Bi2(Fe1−x Al x )4O9 ...

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Double-decker sensor phthalocyanines functionalized with 1-hydroxyhexane-3-ylthio moieties; synthesis, characterization, electrical properties and H- or J- type aggregation studies

12.04.2015 | Author(s): Ahmet T. Bilgiçli , Armağan Günsel , Mehmet Kandaz , Ahmet Altındal , Hüseyin Cömert, Journal of Organometallic Chemistry, 2015

Publication date: 1 June 2015 Source:Journal of Organometallic Chemistry, Volume 785 Author(s): Ahmet T. Bilgiçli , Armağan Günsel , Mehmet Kandaz , Ahmet Altındal , Hüseyin Cömert In this study, we report the synthesis, characterization, aggregation and electrical properties of ...

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Solvothermal synthesis of octahedral NiFe2O4 nanocrystals and catalytic properties for the reduction of some aromatic nitrocompounds

12.04.2015 | Author(s): Hangsong Zheng , Yonghong Ni , Nannan Xiang , Xiang Ma , Fengying Wan, Materials Chemistry and Physics, 2015

Publication date: 5 May 2015 Source:Materials Chemistry and Physics, Volume 158 Author(s): Hangsong Zheng , Yonghong Ni , Nannan Xiang , Xiang Ma , Fengying Wan In this paper, we report the successful synthesis of octahedral NiFe2O4 nanocrystals with room-temperature ferrimagnetism via ...

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Effect of calcination temperature and molar ratio of tin and manganese on capacitance of Ti/SnO2–Sb–Mn/β-PbO2 electrode during phenol electro-oxidation

12.04.2015 | Author(s): Peng Li , Yuemin Zhao , Binbin Ding , Lizhang Wang, Journal of Electroanalytical Chemistry, 2015

Publication date: 15 June 2015 Source:Journal of Electroanalytical Chemistry, Volume 747 Author(s): Peng Li , Yuemin Zhao , Binbin Ding , Lizhang Wang The variations in the capacitance of Ti/SnO2–Sb–Mn/β-PbO2 electrodes prepared using sol–gel and electrodeposition techniques with ...

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Solvent‐free acetylation of lignocellulosic fibers at room temperature: Effect on fiber structure and surface properties

10.04.2015 | Meriem El Boustani, François Brouillette, Gilbert Lebrun, Ahmed Belfkira, Journal of Applied Polymer Science, 2015

ABSTRACT Acetylation is one of the most interesting chemical treatments to improve the affinity of lignocellulosic fibers with polymeric matrices for the elaboration of several types of composites. In this paper, the acetylation of flax and wood pulp (bleached softwood Kraft pulp and ...

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2D XANES–XEOL Spectroscopy Studies of Morphology-Dependent Phase Transformation and Corresponding Luminescence from Hierarchical TiO2 Nanostructures

09.04.2015 | Jun Li; Lijia Liu; Tsun-Kong Sham, Chemistry of Materials, 2015

Hierarchical TiO2 nanostructures with the nanograss at the top and the close-ended nanotube at the bottom were synthesized by an extended electrochemical anodization process. Upon thermal annealing, the hierarchical TiO2 nanostructures exhibit a morphology-dependent phase transformation behavior: ...

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Control of swelling properties of polyvinyl alcohol/hyaluronic acid hydrogels for the encapsulation of chondrocyte cells

08.04.2015 | Sami Pirinen, Jennika Karvinen, Virpi Tiitu, Mika Suvanto, Tuula T. Pakkanen, Journal of Applied Polymer Science, 2015

ABSTRACT Hydrogel scaffolds for tissue engineering are important biomaterials. The target in this study was to prepare polyvinyl alcohol/hyaluronic acid hydrogels for the encapsulation of chondrocyte cells by a simple cross‐linking reaction. Control of the swelling properties and morphology of ...

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Growth of InN quantum dots to nanorods: a competition between nucleation and growth rates

08.04.2015 | Kishore K. Madapu; Sandip Dhara; S. Polaki; S. Amirthapandian; A. K. Tyagi, CrystEngComm, 2015

Growth evolution of InN nanostructures via a chemical vapor deposition technique is reported using In2O3 as a precursor material and NH3 as reactive gas in the temperature range of 550–700 °C. Morphology of the nanostructures solely depends on the growth temperature, evolving from quantum dot ...

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