Results 21 to 30 of about 224,961 (312)

Correlation between fragility and free volume void size at glass transition temperature

AIP Advances, 2022
Despite the tremendous endeavors devoted to exploiting the nature of glass transition, the factors that control the steepness index of viscosity near glass transition, that is, fragility, remain unclear.
Qingli Ma, Yong Wang, Youlin Gu, Nanxiang Zhao, Sheng Luo, Lei Wang, Yihua Hu, Jiajie Fang   +7 more
doaj   +1 more source

Non-linear properties of supercooled liquids in the system Na2O---SiO2 [PDF]

, 1994
The physical properties, viscosity, density, heat capacity and thermal expansivity, of relaxed supercooled liquids in the temperature range just above the glass transition have been determined for ten compositions along the compositional binary Na2O ...
Knoche, Ruth, Dingwell, Donald B., Seifert, Friedrich, Webb, Sharon L.   +3 more
core   +1 more source

A novel method for characterizing temperature-dependent elastic modulus and glass transition temperature by processing the images of bending cantilever slender beams at different temperatures

AIP Advances, 2018
We propose a novel method for estimating the elastic modulus of several materials by processing the bending image of cantilever material sheets. The calculated results (tested for five samples) were consistent with data obtained by direct measurement ...
Nadya Amalia, Elfi Yuliza, Desyana O. Margaretta, Fisca D. Utami, Neni Surtiyeni, Sparisoma Viridi, Mikrajuddin Abdullah   +6 more
doaj   +1 more source

Hydrogen-Bonds Structure in Poly(2-Hydroxyethyl Methacrylate) Studied by Temperature-Dependent Infrared Spectroscopy

Frontiers in Chemistry, 2014
Hydrogen-bonds structure in poly(2-hydroxyethyl methacrylate) (PHEMA) were investigated by means of temperature-dependent infrared (IR) spectroscopy. Spectral variations involved with the OH•••OH and C=O•••HO types of hydrogen-bonds were found around the
Shigeaki eMorita
doaj   +1 more source

Transitions/relaxations in polyester adhesive/PET system [PDF]

, 2010
The correlations between the transitions and the dielectric relaxation processes of the oriented poly(ethylene terephthalate) (PET) pre-impregnated of the polyester thermoplastic adhesive have been investigated by differential scanning calorimetry (DSC ...
Savignac, Michel, Michel Savignac, Lafourcade, Michel, Colette Lacabanne, Alain Bernès, Lacabanne, Colette, Perraud, Sophie, Elodie Carsalade, Carsalade, Elodie, Bernès, Alain, Sophie Perraud, Michel Lafourcade   +11 more
core   +1 more source

Glass-Transition Temperature of Water: A Simulation Study [PDF]

Physical Review Letters, 2004
submitted to Phys ...
N. GIOVAMBATTISTA, C. A. ANGELL, SCIORTINO, Francesco, H. E. STANLEY   +3 more
openaire   +4 more sources

High glass transition catalyst-free fire-retardant polybenzoxazine vitrimer through solventless one-pot method [PDF]

, 2023
A high-temperature polybenzoxazine vitrimer has been synthesised by a solventless one-pot method involving the Mannich condensation of a phenolic disulphide, paraformaldehyde and aniline.
Alex A., Skordos, Festus Ifeanyi, Anagwu
core   +1 more source

Coamorphous Systems of Valsartan: Thermal Analysis Contribution to Evaluate Intermolecular Interactions Effects on the Structural Relaxation

Molecules, 2023
Coamorphous formation in binary systems of valsartan (Val) with 4,4′-bipyridine (Bipy) and trimethoprim (Tri) was investigated for mixtures with a mole fraction of 0.16~0.86 of valsartan and evaluated in terms of the glass transition temperature.
Bruno Ekawa, Hermínio P. Diogo, Ricardo A. E. Castro, Flávio J. Caires, M. Ermelinda S. Eusébio   +4 more
doaj   +1 more source

Thermal behaviour of zircon/zirconia-added chemically durable borosilicate porous glass [PDF]

, 2013
Macroporous alkali resistant glass has been developed by making additions of zirconia (ZrO2) and zircon (ZrSiO4) to the sodium borosilicate glass system SiO2–B2O3 Na2O. The glass was made using a traditional high temperature fusion process.
Olabi, Abdul-Ghani, Rafferty, Aran, Hasanuzzaman, Mohammed, Hasanuzzaman, Muhammad, Sajjia, Mustafa   +4 more
core   +1 more source

Does Explicit Polarizability Improve Molecular Dynamics Predictions of Glass Transition Temperatures of Ionic Liquids? [PDF]

, 2022
Molecular-dynamics simulations are used for predictions of the glass transition temperatures for a test set of 5 aprotic ionic liquids. Glass transitions are localized with the trend-shift method analyzing volumetric and transport properties of bulk ...
Ctirad, Cervinka, Martin, Klajmon
core   +1 more source