My watch list
my.chemeurope.com  
Login  

7,119 Newest Publications about the topic calorimetry

rss

You can refine your search further. Select from the filter options on the left to narrow down your results.

Synthesis and mesomorphism of mixed ether-ester tail triphenylene discotic liquid crystals with long alkyloxy peripheral chains

21-Apr-2009 | Biqin Wang, Caiyan Gao, Keqing Zhao, Ping Hu, Frontiers of Chemistry in China, 2009

Symmetrical and asymmetrical triphenylene discotic liquid crystals with two kinds of different peripheral chains, sym-TP(OC11H23)3(O2CR)3 and asym-TP(OC11H23)3(O2CR)3, (R=CH2OC2H5, CH2OC3H7, CH2OC4H9, CH2OC5H11, C3H7, C4H9, C5H11, C6H13, C7H15) were synthesized. Their thermotropic liquid ...

more

Redetermination of sulfatotris(thiourea)zinc(II)

28-Jun-2008 | Radmila Krupková, Jan Fábry, Ivana Císařová, Přemysl Vaněk, Acta Crystallographica Section E, 2008

In the title compound, [Zn(SO4)(CH4N2S)3], the Zn2+ cation is coordinated in a tetrahedral geometry by one O atom from a sulfate anion and the S atoms from three thiourea ligands. There are weak N—H...O and N—H...S hydrogen bonds in the structure, some of which are bifurcated. The same crystal ...

more

Redetermination of sulfatotris(thiourea)zinc(II)

01-Dec-2007 | ; Radmila Krupková; Jan Fábry; Ivana Císařová; Přemysl Vaněk, Acta Crystallographica Section E, 2007

In the title compound, [Zn(SO4)(CH4N2S)3], the Zn2+ cation is coordinated in a tetrahedral geometry by one O atom from a sulfate anion and the S atoms from three thiourea ligands. There are weak N—H...O and N—H...S hydrogen bonds in the structure, some of which are bifurcated. The same crystal ...

more

Synthesis, characterization and thermal properties of novel PMDA-PAPD/silica hybrid network polymers

08-Feb-2006 | Fengxian Qiu, Yan Jiang, Yuming Zhou, Juzheng Liu, Silicon Chemistry, 2006

Novel PMDA-PAPD/silica hybrid polymers were synthesized by the sol-gel process. Fourier transform infrared spectroscopy and 29Si nuclear magnetic resonance spectroscopy were used to characterize the structure of the hybrids, (condensed siloxane bonds designated as Q1, Q2, Q3, Q4, wth ...

more

Impact of pre‐aging on the tensile and bending properties of AA 6061

01-Dec-2005 | Ou, Bin‐Lung; Shen, Chin‐Hui, Scandinavian Journal of Metallurgy, 2005

The impact of low temperature pre‐aging on the artificial age‐hardening of AA 6061 (Al–1.1Mg–0.63Si) has been investigated using differential scanning calorimetry (DSC) as well as by measuring the electrical resistivity, and confirmed by microstructure observation using scanning electron ...

more

Impact of pre‐aging on the tensile and bending properties of AA 6061

01-Dec-2005 | Ou, Bin‐Lung; Shen, Chin‐Hui, Scandinavian Journal of Metallurgy, 2005

The impact of low temperature pre‐aging on the artificial age‐hardening of AA 6061 (Al–1.1Mg–0.63Si) has been investigated using differential scanning calorimetry (DSC) as well as by measuring the electrical resistivity, and confirmed by microstructure observation using scanning electron ...

more

Improvement of the Grain Refinement of Cu-Zn-Al Shape Memory Alloys with Manganese, Cobalt, and Zirconium Addition

03-Nov-2004 | F. J. Gil, J. Peña, J. M. Guillemany, Journal of Materials Synthesis and Processing, 2004

The objectives of the present work were to determine the best grain refiners for copper-based shape memory alloys among three of the most important elements, to evaluate the kinetic grain growth, and to observe the changes produced in the transformation temperatures and enthalpies with the grain ...

more

Ring Closure Reactions of Heterocyclic Azides with the Assistance of DSC [1]

19-Feb-2004 | Dang Van Tinh, Wolfgang Stadlbauer, Molecules Online, 2004

5-Azido-pyrido[2, 3-d]pyrimidine-2,4,7-triones or 6-azido-uracils with reactive ortho-substituents such as aryl-, acyl- or nitro groups were prepared from the corresponding hydroxy compounds by chlorination (or tosylation) and reaction with sodium azide. The azides cyclize thermically to the ...

more

DSC - A Valuable Tool in Heterocyclic Synthesis

19-Feb-2004 | Thomas Kappe, Wolfgang Stadlbauer, Molecules Online, 2004

Many decomposition and ring closure reactions in the azide series (e.g. a cyclization and rearrangement reaction sequence from the azido ester 1 via the ethoxy oxazole 2 to the oxazolone 3), intramolecular rearrangement reactions (e.g. via a-oxoketenes), self condensation of p-octopamine and ...

more

Page 712 From 712
Subscribe to e-mail updates relating to your search

You will receive via e-mail the latest search results matching your search criteria. This service is free of charge and can be cancelled at any time.

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE