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- Author:
- Schawe, Jürgen E.K.
- Source:
- Thermochimica acta 2021 v.698 pp. 178879
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; behavior; calibration; heat transfer; literature; mass; melting; models; sampling; temperature; Show all 10 Subjects
- Abstract:
- ... The thermal lag of DSC is a heating rate independent constant and influences the measured onset temperature of melting peaks and must be taken into account during the temperature calibration. In the literature, however, non-linear behavior of the measured onset temperature is reported for the case of high scanning rates and the use of small samples. Based on a conventional heat transfer model of a ...
- DOI:
- 10.1016/j.tca.2021.178879
-
https://dx.doi.org/10.1016/j.tca.2021.178879
- Author:
- Fiola, Gregory J.; Chaudhari, Dushyant M.; Stoliarov, Stanislav I.
- Source:
- Fire safety journal 2021 v.120 pp. 103083
- ISSN:
- 0379-7112
- Subject:
- differential scanning calorimetry, etc ; algorithms; manufacturing; models; molecular weight; polymethylmethacrylate; pyrolysis; thermogravimetry; Show all 8 Subjects
- Abstract:
- ... Poly (methyl methacrylate) (PMMA) has long been a benchmark material of study in the fire research and fire modeling community due to its simple and predictable thermal decomposition behavior. Two common PMMA manufacturing processes, casting and extruding, produce polymers with slightly different properties and characteristics, primarily a result of differences in molecular mass. A dichotomy has b ...
- DOI:
- 10.1016/j.firesaf.2020.103083
-
https://dx.doi.org/10.1016/j.firesaf.2020.103083
- Author:
- Smith, A.L.; Vlieland, J.; Pignié, M.-C.; Abbink, M.; Mikaelian, G.; Benigni, P.
- Source:
- Thermochimica acta 2021 v.696 pp. 178825
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; X-ray diffraction; cesium; enthalpy; light; molybdates; physical phases; temperature; water; Show all 9 Subjects
- Abstract:
- ... The ternary cesium molybdates Cs₂Mo₂O₇, Cs₂Mo₃O₁₀, Cs₂Mo₅O₁₆ and Cs₂Mo₇O₂₂ have been synthesized in this work using a solid state route and their structures have been characterized using X-ray diffraction. The enthalpies of formation of Cs₂Mo₂O₇ and Cs₂Mo₃O₁₀ have been measured using solution calorimetry, yielding ΔfHmo(Cs₂Mo₂O₇, cr, 298.15 K) = −(2301.6 ± 4.7) kJ · mol⁻¹ and ΔfHmo(Cs₂Mo₃O₁₀, cr, ...
- DOI:
- 10.1016/j.tca.2020.178825
-
https://dx.doi.org/10.1016/j.tca.2020.178825
- Author:
- Eskew, Matthew W.; Koslen, Megan M.; Benight, Albert S.
- Source:
- Analytical biochemistry 2021 v.612 pp. 113843
- ISSN:
- 0003-2697
- Subject:
- differential scanning calorimetry, etc ; biotinylation; chemical structure; human serum albumin; ligands; pH; paper; quantitative analysis; thermodynamics; Show all 9 Subjects
- Abstract:
- ... This paper reports evaluation of ligand binding constants for unmodified or biotinylated HSA (HSAB) for two well-known HSA binding ligands, naproxen and bromocresol green. Results demonstrate differential scanning calorimetry (DSC) is a reliable quantitative method for straight-forward and rapid evaluation of ligand binding constants for HSA and modified derivatives. DSC measured the thermodynamic ...
- DOI:
- 10.1016/j.ab.2020.113843
-
https://dx.doi.org/10.1016/j.ab.2020.113843
- Author:
- Silva, Ana L.R.; Gonçalves, Jorge M.; Morais, Victor M.F.; Ribeiro da Silva, Maria D.M.C.
- Source:
- Thermochimica acta 2021 v.695 pp. 178817
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; chemical structure; enthalpy; hydroxybenzaldehyde; ligands; quantum mechanics; schiff bases; thermal properties; Show all 8 Subjects
- Abstract:
- ... This work is part of a comprehensive study of the thermal properties of several molecules of tetradentate Schiff bases, obtained as condensation products of salicylaldehyde with alkyldiamines. Herein, we report an experimental thermochemical study of SALPN (N,N′-bis(salicylaldehydo)propylenediimine) and a computational thermochemical study of SALEN (N,N′-bis(salicylaldehydo)dimethylenediimine), SA ...
- DOI:
- 10.1016/j.tca.2020.178817
-
https://dx.doi.org/10.1016/j.tca.2020.178817
- Author:
- Horlor, Brian; Hoover, Carianne; Lamb, James; Ramirez, Michael; Soto, Carissa M.; Carlo, Steven
- Source:
- Thermochimica acta 2020 v.687 pp. 178579
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; coatings; drying; standard deviation; Show all 4 Subjects
- Abstract:
- ... A new method for analyzing the drying characteristics of ink has been developed using Differential Scanning Calorimetry (DSC). DSC is able to determine the drying time of an ink in 30–45 min. In contrast, the ASTM method uses a Beck-Koller (BK) Dryer instrument to draw a stylus across an ink film to evaluate film drying, which can take hours or days depending on the film. This DSC method is compar ...
- DOI:
- 10.1016/j.tca.2020.178579
-
https://dx.doi.org/10.1016/j.tca.2020.178579
- Author:
- Miele, Ylenia; Mingotaud, Anne-Françoise; Caruso, Enrico; Malacarne, Miryam C.; Izzo, Lorella; Lonetti, Barbara; Rossi, Federico
- Source:
- Biochimica et biophysica acta 2021 v.1865 no.4 pp. 129611
- ISSN:
- 0304-4165
- Subject:
- differential scanning calorimetry, etc ; composite polymers; droplets; electron transfer; fluorescence microscopy; image analysis; lipids; nuclear magnetic resonance spectroscopy; permeability; polymethylmethacrylate; temperature; Show all 11 Subjects
- Abstract:
- ... In recent years, there has been a growing interest in the formation of copolymer-lipid hybrid self-assemblies, which allow combining and improving the main features of pure lipid-based and copolymer-based systems known for their potential applications in the biomedical field. As the most common method used to obtain giant vesicles is electroformation, most systems so far used low Tg polymers for t ...
- DOI:
- 10.1016/j.bbagen.2020.129611
-
https://dx.doi.org/10.1016/j.bbagen.2020.129611
- Author:
- Xu, Hui; Chen, Jingyun; Sun, Yiren; Zhu, Xiaoxu; Wang, Weiying; Liu, Jiayin
- Source:
- Journal of cleaner production 2021 v.289 pp. 125134
- ISSN:
- 0959-6526
- Subject:
- differential scanning calorimetry, etc ; Fourier transform infrared spectroscopy; additives; bitumen; mass; pavements; physicochemical properties; rheometers; temperature; testing; viscoelasticity; Show all 11 Subjects
- Abstract:
- ... The present study investigated rheological and physico-chemical properties of warm-mix recycled asphalt mastics containing a high percentage (50%) of artificial reclaimed asphalt pavement (RAP) binder. The influence of two typical warm-mix additives (a wax-based R and a surfactant-based M), four mass ratios of filler to asphalt (0.0–1.5), and three aging states (unaged, short-term aged and long-te ...
- DOI:
- 10.1016/j.jclepro.2020.125134
-
https://dx.doi.org/10.1016/j.jclepro.2020.125134
- Author:
- Swann, Joshua D.; Stoliarov, Stanislav I.
- Source:
- Fire safety journal 2021 v.120 pp. 103086
- ISSN:
- 0379-7112
- Subject:
- differential scanning calorimetry, etc ; combustion; gasification; heat transfer; image analysis; models; porosity; prediction; pyrolysis; thermal conductivity; thermogravimetry; thermoplastics; Show all 12 Subjects
- Abstract:
- ... A systematic methodology, utilizing improved experimental and numerical techniques, is used to analyze the heat transfer within an intumescent char. Thermogravimetric analysis, differential scanning calorimetry and microscale combustion calorimetry were conducted on 4–7 mg samples to determine the kinetics and thermodynamics of thermal decomposition and heats of complete combustion of gaseous pyro ...
- DOI:
- 10.1016/j.firesaf.2020.103086
-
https://dx.doi.org/10.1016/j.firesaf.2020.103086
- Author:
- Niu, Huichang; Liu, Naian; Ji, Dan
- Source:
- Fire safety journal 2021 v.120 pp. 103028
- ISSN:
- 0379-7112
- Subject:
- differential scanning calorimetry, etc ; Pinus sylvestris; activation energy; algorithms; ambient temperature; forests; heat; kinetics; nitrogen; oxygen; thermal degradation; thermogravimetry; wildfires; Show all 13 Subjects
- Abstract:
- ... Thermal degradation of forest combustibles plays an important role in the ignition and spread of wildland fires. Atmospheric oxygen affects thermal degradation mechanisms. In this paper, the thermal degradation behavior of pine branch (PB) particles of Pinus Sylvestris is investigated by using a thermogravimetric analyzer under inert and oxidative atmospheres. Results indicate that the thermal deg ...
- DOI:
- 10.1016/j.firesaf.2020.103028
-
https://dx.doi.org/10.1016/j.firesaf.2020.103028
- Author:
- Xu, Tao; Jian, Zengyun; Zhuo, Longchao; Zhang, Leilei; Chang, Fange; Zhu, Man; Liu, Yongqin; Jie, Ziqi
- Source:
- Thermochimica acta 2021 v.697 pp. 178858
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; activation energy; crystallization; equations; glass; glass transition; kinetics; light; metalloids; rare earth elements; temperature; thermal stability; Show all 12 Subjects
- Abstract:
- ... The crystallization kinetics of a novel metalloid-bearing light rare-earth (RE)-based La₆₄Al₂₆Ga₄C₆ metallic glass (MG) under isothermal and non-isothermal conditions were systematically researched by Johnson-Mehl-Avrami (JMA), Arrhenius, Kissinger, Ozawa, Kissinger-Akahira-Sunose and Ozawa-Flynn-Wall approaches using differential scanning calorimeter. The present MG possesses higher thermal stabi ...
- DOI:
- 10.1016/j.tca.2020.178858
-
https://dx.doi.org/10.1016/j.tca.2020.178858
- Author:
- Salas-López, Karina; García-Castro, Miguel A.; Amador, Patricia; Herrera-González, Ana M.; Galicia-Aguilar, Alberto; Amador, Francisco A.; Hernández-Pascasio, Fernanda; Flores, Henoc
- Source:
- Thermochimica acta 2021 v.697 pp. 178861
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; combustion; degradation; energy; enthalpy; estimation; heat; mechanochemistry; mole fraction; phthalimide; purity; solvents; sublimation; temperature; thermogravimetry; Show all 15 Subjects
- Abstract:
- ... N,N′-(1,3-phenylene)bis(phthalimide) and N,N′-(1,3-phenylene)bis(phthalimide-5-carboxilic acid), were synthetized in solid phase without solvents, using mechanochemistry; the first compound could be purified with a high mole fraction. However, it was not possible to obtain the second with high purity. The thermochemical properties of compound N,N′-(1,3-phenylene)bis(phthalimide) were determined fr ...
- DOI:
- 10.1016/j.tca.2021.178861
-
https://dx.doi.org/10.1016/j.tca.2021.178861
- Author:
- Zhang, Hanqi; Wang, Bing; Hu, Jiqiang; Wang, Dongqing; Zou, Yajun; Yang, Yongsheng
- Source:
- Thermochimica acta 2021 v.696 pp. 178837
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; accuracy; activation energy; behavior; composite materials; equations; mathematical models; phenol; polymers; regression analysis; temperature; Show all 11 Subjects
- Abstract:
- ... Phenol-containing phthalonitrile polymer is a novel type of autocatalytic phthalonitrile thermoset with outstanding thermal performance. In this work, the curing behavior of phenol-containing phthalonitrile monomer was studied by differential scanning calorimetry. Based on the isoconversional principle, the activation energy was calculated as 63±6 kJ/mol. It is significantly lower than the reporte ...
- DOI:
- 10.1016/j.tca.2020.178837
-
https://dx.doi.org/10.1016/j.tca.2020.178837
- Author:
- Shirley Auxilia, L.; Jena, Hrudananda; Senapati, Abhiram; Sudha, R.
- Source:
- Thermochimica acta 2021 v.696 pp. 178824
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; apatite; energy-dispersive X-ray analysis; heat; neutron activation analysis; prevalence; rhenium; scanning electron microscopy; solubility; technetium; Show all 10 Subjects
- Abstract:
- ... Rhenium substituted Ca-hydroxy apatite (Ca₁₀₋ₓReₓ(PO₄)₆(OH)₂±δ, x = 0−0.7) was synthesized by solid state reaction and characterized by XRD, Raman and TG-DTA analysis.Results show that the solubility limit of Re is below 5 mol %; above whichCa₃(PO₄)₂ phase was separated out. In this study, Re is used as surrogate for technetium (Tc) which does not occur in nature. The incorporation and distributio ...
- DOI:
- 10.1016/j.tca.2020.178824
-
https://dx.doi.org/10.1016/j.tca.2020.178824
- Author:
- Mani, Dineshkumar; Saranprabhu, M.K.; Rajan, K.S.
- Source:
- Renewable energy 2021 v.163 pp. 625-634
- ISSN:
- 0960-1481
- Subject:
- differential scanning calorimetry, etc ; copper nanoparticles; enthalpy; nanocomposites; phase transition; renewable energy sources; specific heat; temperature; thermal conductivity; thermal energy; Show all 10 Subjects
- Abstract:
- ... Pentaerythritol is a solid-solid phase change material with a high enthalpy of solid-solid phase transition (260–280 kJ/kg) and low thermal conductivity (0.2–0.7 W/mK). Thus, it is imperative to improve the thermal conductivity of pentaerythritol. The use of copper nanoparticles as an additive to pentaerythritol is explored, resulting in the development of copper-pentaerythritol composites. The ef ...
- DOI:
- 10.1016/j.renene.2020.08.119
-
https://dx.doi.org/10.1016/j.renene.2020.08.119
- Author:
- Sriyai, Montira; Chaiwon, Tawan; Molloy, Robert; Meepowpan, Puttinan; Punyodom, Winita
- Source:
- RSC advances 2020 v.10 no.71 pp. 43566-43578
- ISSN:
- 2046-2069
- Subject:
- differential scanning calorimetry, etc ; activation energy; data analysis; liquids; polymerization; tin; Show all 6 Subjects
- Abstract:
- ... Novel soluble liquid tin(ii) n-butoxide (Sn(OnC₄H₉)₂), tin(ii) n-hexoxide (Sn(OnC₆H₁₃)₂), and tin(ii) n-octoxide (Sn(OnC₈H₁₇)₂) initiators were synthesized for use as coordination–insertion initiators in the bulk ring-opening polymerization (ROP) of l-lactide (LLA). In order to compare their efficiencies with the more commonly used tin(ii) 2-ethylhexanoate (stannous octoate, Sn(Oct)₂) and conventi ...
- DOI:
- 10.1039/d0ra07635j
-
http://dx.doi.org/10.1039/d0ra07635j
- Author:
- Bernardes, Carlos E.S.; Joseph, Abhinav; da Piedade, Manuel E. Minas
- Source:
- Thermochimica acta 2020 v.687 pp. 178574
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; benzoic acid; geometry; heat; temperature; Show all 5 Subjects
- Abstract:
- ... Differential Scanning Calorimetry (DSC) is a widely accessible and versatile method for the determination of the heat capacities of organic materials as a function of temperature. In routine use, it is typically possible to obtain results with an accuracy better than 3 %. However, to achieve this level of accuracy, careful optimization of the experimental procedure for a specific apparatus must be ...
- DOI:
- 10.1016/j.tca.2020.178574
-
https://dx.doi.org/10.1016/j.tca.2020.178574
- Author:
- Zaitsau, Dzmitry H.; Schmitz, Alexa; Janiak, Christoph; Verevkin, Sergey P.
- Source:
- Thermochimica acta 2020 v.686 pp. 178547
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; cations; heat; imidazoles; ionic liquids; salts; temperature; Show all 7 Subjects
- Abstract:
- ... The isobaric heat capacities of seven ionic liquids (ILs) based on the S-alkyl-tetrahydrothiophenium cation [CₙTHT] with alkyl chain lengths of Cₙ = 4,5,6,7,8,9,10 and the bis[(trifluoromethyl)sulfonyl]imide, [NTf₂] anion were measured in a differential scanning calorimeter in the temperature range 310−376 K. Measurements have been performed for the first time. Experimental results were extrapolat ...
- DOI:
- 10.1016/j.tca.2020.178547
-
https://dx.doi.org/10.1016/j.tca.2020.178547
- Author:
- Tsvetkov, D.S; Sednev-Lugovets, A.L; Sereda, V.V; Malyshkin, D.A; Ivanov, I.L; Zuev, A.Yu
- Source:
- Thermochimica acta 2020 v.686 pp. 178562
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; enthalpy; heat; oxides; oxygen; phase transition; temperature; Show all 7 Subjects
- Abstract:
- ... The enthalpy increments for the GdBaCo₂O₆₋δ double perovskite were determined by means of drop calorimetry in air in the temperature range between 365.4 K and 1272.4 K. The heats of orthorhombic I→orthorhombic II phase transition at 347.2 K and orthorhombic II→tetragonal transition at 745.8 K are equal to (2.95 ± 0.07) kJ·mol⁻¹ and (2.40 ± 0.09) kJ·mol⁻¹, respectively, as measured with differentia ...
- DOI:
- 10.1016/j.tca.2020.178562
-
https://dx.doi.org/10.1016/j.tca.2020.178562
- Author:
- Lv, Jiangbo; Hong, Jinlang; Liang, Bo; Zhao, Erjin; Zeng, Ke; Chen, Menghao; Hu, Jianghuai; Yang, Gang
- Source:
- Thermochimica acta 2020 v.683 pp. 178442
- ISSN:
- 0040-6031
- Subject:
- differential scanning calorimetry, etc ; activation energy; catalytic activity; melamine; models; resins; Show all 6 Subjects
- Abstract:
- ... The exploration of curing process is important for the application of phthalonitrile resins in advanced materials. In this study, the curing behaviors of 1,3-bis (3,4-dicyanophenoxy) benzene (3BOCN) and melamine (MI) system was studied by differential scanning calorimetry (DSC) at different heating rates. An autocatalytic model could describe the curing reaction of 3BOCN-MI. The curing parameters ...
- DOI:
- 10.1016/j.tca.2019.178442
-
https://dx.doi.org/10.1016/j.tca.2019.178442
