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Journal articles on the topic 'Thermal and photochemical stability'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 May 2024

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1

Tian, Hong Yan, Yue Hui Wang, Chun Liu, and Kui Niu. "Preparation, Characterization and Physical Properties of Polyvinyl Alcohol-Layered Clay Nanocomposites." Advanced Materials Research 997 (August 2014): 433–37. http://dx.doi.org/10.4028/www.scientific.net/amr.997.433.

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This work focused on the preparation of poly (vinyl alcohol) (PVA)/ layered double hydroxide (LDH) and LDHSA nanocomposites by casting method. The morphology and interlayer spacing of the composites were characterized. The mechanical properties and the photochemical stability of the film of PVA, PVA/LDH and PVA/LDHSA have been studied and compared with PVA/MMT nanocomposites reported in previously. The results indicated that the thermal stability and dynamic mechanical properties of the PVA matrix in the PVA/LDH films and PVA/MMT films was enhanced. PVA/LDH films and PVA/OMMT films were shown

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2

Mucha, Maria, and Sylwia Białas. "Thermal and Photochemical Stability of Chitosan Doped by Nanosilver." Journal of Chitin and Chitosan Science 1, no. 3 (2013): 235–39. http://dx.doi.org/10.1166/jcc.2013.1036.

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3

Długa, Aldona, Dagmara Bajer, and Halina Kaczmarek. "Photochemical and Thermal Stability of Bionanocellulose/Poly(Vinyl Alcohol) Blends." Polymers 14, no. 20 (2022): 4364. http://dx.doi.org/10.3390/polym14204364.

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This research focuses on novel ecological materials for biomedical and cosmetic applications. The cellulose of bacterial origin is well suited for such purposes, but its functional properties must be modified. In this work, the blends of bionanocellulose and poly(vinyl alcohol), BNC/PVA, were prepared based on in situ and ex situ methodology combined with impregnation and sterilization, using different concentrations of PVA. The main purpose of this work was to check the influence of UV radiation and high temperature, which can be sterilizing factors, on the properties of these mixtures. It wa

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4

Winton, G. H., N. Warrington, and L. Faraone. "Thermal stability of photochemical native oxide films on Hg1−xCdxTe." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 14, no. 4 (1996): 2325–30. http://dx.doi.org/10.1116/1.580017.

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5

Carayon, Chantal, and Suzanne Fery-Forgues. "2-Phenylbenzoxazole derivatives: a family of robust emitters of solid-state fluorescence." Photochemical & Photobiological Sciences 16, no. 7 (2017): 1020–35. http://dx.doi.org/10.1039/c7pp00112f.

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In addition to thermal, chemical and photochemical stability, the 2-phenylbenzoxazole fragment exhibits attractive emission properties in the solid state, thus leading to highly photoluminescent materials and sensors.

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6

Wasikiewicz, Jaroslaw M., Laila Abu-Sen, Andrew B. Horn, et al. "Towards solution processable air stable p-type organic semiconductors: synthesis and evaluation of mono and di-fluorinated pentacene derivatives." Journal of Materials Chemistry C 4, no. 30 (2016): 7309–15. http://dx.doi.org/10.1039/c6tc01221c.

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A series of mono and di-fluorinated soluble pentacene derivative organic semiconductors have been synthesised and subjected to a study of the relationship between molecular structure and thermal/photochemical stability.

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7

Fernandes, D. M., A. A. Winkler Hechenleitner, A. E. Job, E. Radovanocic, and E. A. Gómez Pineda. "Thermal and photochemical stability of poly(vinyl alcohol)/modified lignin blends." Polymer Degradation and Stability 91, no. 5 (2006): 1192–201. http://dx.doi.org/10.1016/j.polymdegradstab.2005.05.024.

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8

Litter, Marta I., and Miguel A. Blesa. "Photodissolution of iron oxides. IV. A comparative study on the photodissolution of hematite, magnetite, and maghemite in EDTA media." Canadian Journal of Chemistry 70, no. 9 (1992): 2502–10. http://dx.doi.org/10.1139/v92-316.

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The thermal and 254-nm photochemical dissolution reactions of magnetite (Fe3O4), maghemite (γ-Fe2O3), and hematite (α-Fe2O3) suspended in EDTA aqueous solutions were compared. γ-Fe2O3 and Fe3O4 are thermally and photochemically more reactive than α-Fe2O3. Both thermal and photochemical dissolution reactions are governed by an initiation step, which involves the production of FeIIaq, and a subsequent thermal reaction of these ions with the solid, to produce FeIIIaq. The initiation step under UV irradiation involves the photoreduction of surface >FeIII – EDTA complexes to yield FeIIaq and the

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9

Mukhanov, E. L., I. V. Dorogan, A. V. Chernyshev, et al. "Theoretical and Experimental Study of New Photochromic Bis-Spiropyrans with Hydroxyethyl and Carboxyethyl Substituents." International Journal of Photoenergy 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/752949.

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Two new asymmetrical bis-spiropyrans with nonequivalent spiropyran units have been investigated. Hydroxyethyl and carboxyethyl substituents have been used to improve thermal stability of the photoinduced merocyanine forms of the bis-spiropyrans. 2-Hydroxyethyl substituted compound is characterized by 4 times more stable merocyanine isomer. 2-Carboxyethyl substituent in the hetarene part enables chelation by metal ions and controllably stabilizes the merocyanine from thermal decay. As a result of theoretical modeling and photochemical experiments, it was shown that obtained compounds are perspe

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10

Kawasaki, Hideya, Hiroko Yamamoto, Hiroaki Fujimori, Ryuichi Arakawa, Yasuhiko Iwasaki, and Mitsuru Inada. "Stability of the DMF-Protected Au Nanoclusters: Photochemical, Dispersion, and Thermal Properties." Langmuir 26, no. 8 (2010): 5926–33. http://dx.doi.org/10.1021/la9038842.

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11

Müller, Gert R. J., Christian Meiners, Volker Enkelmann, Yves Geerts, and Klaus Müllen. "Liquid crystalline perylene-3,4-dicarboximide derivatives with high thermal and photochemical stability." Journal of Materials Chemistry 8, no. 1 (1998): 61–64. http://dx.doi.org/10.1039/a705910h.

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12

Kamińska, A., S. Sanyal, and H. Kaczmarek. "Thermal and photochemical stability of polystyrene and its blends with polyvinyl chloride." Journal of Thermal Analysis 35, no. 7 (1989): 2135–41. http://dx.doi.org/10.1007/bf01911878.

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13

Ancellet, Gérard, François Ravetta, Jacques Pelon, et al. "Ozone Lidar Observations in the City of Paris: Seasonal Variability and Role of The Nocturnal Low Level Jet." EPJ Web of Conferences 237 (2020): 03022. http://dx.doi.org/10.1051/epjconf/202023703022.

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Ozone lidar measurements have been carried out in Paris during 4 years to characterize the seasonal variability of the vertical gradient within the urban planetary boundary layer (PBL). The interaction between NOx emission and thermal stability of the PBL is the main driver of the winter strong positive O3 gradient, while summer neutral gradient is related to weaker thermal stability and photochemical ozone production at the regional scale. Simultaneous lidar measurements of ozone and wind vertical profiles during 36 hours in September 2014 also show that the nocturnal low level jet (NLLJ) pla

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14

Tarzi, Olga I., Luciano Di Stéfano, Juan E. Argüello, Gabriela Oksdath-Mansilla, and Rosa Erra-Balsells. "Photochemical and Thermal Stability of Some Dihydroxyacetophenones Used as UV-MALDI-MS Matrices." Photochemistry and Photobiology 89, no. 6 (2013): 1368–74. http://dx.doi.org/10.1111/php.12130.

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15

Kamińska, A., S. Sanyal, and H. Kaczmarek. "Thermal and photochemical stability of polystyrene and its blends with polyvinyl chloride I." Journal of Thermal Analysis 35, no. 3 (1989): 781–89. http://dx.doi.org/10.1007/bf02057233.

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16

Bajer, K., H. Kaczmarek, J. Dzwonkowski, A. Stasiek, and D. Ołdak. "Photochemical and thermal stability of degradable PE/paper waste composites obtained by extrusion." Journal of Applied Polymer Science 103, no. 4 (2006): 2197–206. http://dx.doi.org/10.1002/app.25176.

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17

Han, Qing, Nan Chen, Jing Zhang, and Liangti Qu. "Graphene/graphitic carbon nitride hybrids for catalysis." Materials Horizons 4, no. 5 (2017): 832–50. http://dx.doi.org/10.1039/c7mh00379j.

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Benefiting from the large specific surface area, outstanding electronic, optical, thermal and mechanical properties of graphene, as well as the exceptional electronic band structure and good physicochemical stability of graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>), graphene/g-C<sub>3</sub>N<sub>4</sub>hybrids present great potential in electrochemical and photochemical catalysis.

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18

Zhang, Huiying Amelie, Anubhav Pratap-Singh, and David D. Kitts. "Effect of pulsed light on curcumin chemical stability and antioxidant capacity." PLOS ONE 18, no. 9 (2023): e0291000. http://dx.doi.org/10.1371/journal.pone.0291000.

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Curcumin is the major bioactive component in turmeric with potent antioxidant activity. Little is known about how pulsed light (PL) technology (an emerging non-thermal food processing technology relying on high intensity short duration flashes of light) can affect the chemical stability and antioxidant capacity of curcumin. This study found that PL treatment of fluence levels from 0 to 12.75 J/cm2 produced a fluence-dependent reduction in curcumin content. These results paralleled the production of a tentative curcumin dimer, identified as a potential photochemical transformation product. PL-t

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19

Akbulatov, Azat F., Sergey Yu Luchkin, Lyubov A. Frolova, et al. "Probing the Intrinsic Thermal and Photochemical Stability of Hybrid and Inorganic Lead Halide Perovskites." Journal of Physical Chemistry Letters 8, no. 6 (2017): 1211–18. http://dx.doi.org/10.1021/acs.jpclett.6b03026.

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20

Zhidkov, Ivan S., Azat F. Akbulatov, Andrey I. Kukharenko, et al. "Influence of halide mixing on thermal and photochemical stability of hybrid perovskites: XPS studies." Mendeleev Communications 28, no. 4 (2018): 381–83. http://dx.doi.org/10.1016/j.mencom.2018.07.013.

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21

Guo, Wenzhuo, J. Jack Li, Y. Andrew Wang, and Xiaogang Peng. "Luminescent CdSe/CdS Core/Shell Nanocrystals in Dendron Boxes: Superior Chemical, Photochemical and Thermal Stability." Journal of the American Chemical Society 125, no. 13 (2003): 3901–9. http://dx.doi.org/10.1021/ja028469c.

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22

Ranaghan, Matthew J., Sumie Shima, Lavosier Ramos, et al. "Photochemical and Thermal Stability of Green and Blue Proteorhodopsins: Implications for Protein-Based Bioelectronic Devices." Journal of Physical Chemistry B 114, no. 44 (2010): 14064–70. http://dx.doi.org/10.1021/jp106633w.

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23

Kamińska, A., and M. Świątek. "Thermal and photochemical stability of poly(methyl methacrylate) and its blends with poly(vinyl acetate)." Journal of Thermal Analysis 46, no. 5 (1996): 1383–90. http://dx.doi.org/10.1007/bf01979251.

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24

Box, J. A., L. M. S. Naman, and J. K. Sugden. "Photochemical and thermal stability of amaranth (FD&C red no. 2) in aqueous media." Color Research & Application 10, no. 1 (1985): 41–44. http://dx.doi.org/10.1002/col.5080100110.

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25

Chylińska, Marta, and Halina Kaczmarek. "N-Halamine Hydantoin-Containing Chitosan: Synthesis, Characterization, Thermal and Photolytic Stability Studies." Molecules 25, no. 16 (2020): 3728. http://dx.doi.org/10.3390/molecules25163728.

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Current demand for new protective materials ensuring sterility is systematically growing. The purpose of this work was the synthesis of the biocidal N-halamine hydantoin-containing chitosan (CS-CMH-Cl) and characterization of its properties. The functionalization of the chitosan by 5-hydantoinacetic acid substitution leads to obtaining the CS-CMH polymer, which was chlorinated in next step to transform N-H into N-Cl bonds. In this study, the possibility of forming two biocidal N-Cl bonds in hydantoin ring, grafted onto chitosan chains, was proved. The structure and stability of the prepared ma

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26

Gardette, Jean-Luc, and Mohamed Baba. "FTIR and DSC studies of the thermal and photochemical stability of Balanites aegyptiaca oil (Toogga oil)." Chemistry and Physics of Lipids 170-171 (May 2013): 1–7. http://dx.doi.org/10.1016/j.chemphyslip.2013.02.008.

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27

Girois, Stephane. "Effect of iron compounds (oxide, salt, or complexes) on poly(vinyl chloride) thermal and photochemical stability." Journal of Vinyl and Additive Technology 5, no. 4 (1999): 218–30. http://dx.doi.org/10.1002/vnl.10335.

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28

Wang, Bei, Pei-Zhi Zhang, Jia-Mei Xia, Ai-Quan Jia, and Qian-Feng Zhang. "Synthesis, photochemical characterization, and thermal stability of a series of substituted formamidines as ultraviolet light absorbers." Journal of Vinyl and Additive Technology 25, s2 (2019): E108—E113. http://dx.doi.org/10.1002/vnl.21699.

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29

Ozerova, Victoria V., Ivan S. Zhidkov, Aleksandra Boldyreva, et al. "Spectacular Enhancement of the Thermal and Photochemical Stability of MAPbI3 Perovskite Films Using Functionalized Tetraazaadamantane as a Molecular Modifier." Energies 14, no. 3 (2021): 669. http://dx.doi.org/10.3390/en14030669.

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Perovskite solar cells represent a highly promising third-generation photovoltaic technology. However, their practical implementation is hindered by low device operational stability, mostly related to facile degradation of the absorber materials under exposure to light and elevated temperatures. Improving the intrinsic stability of complex lead halides is a big scientific challenge, which might be addressed using various “molecular modifiers”. These modifiers are usually represented by some additives undergoing strong interactions with the perovskite absorber material, resulting in enhanced so

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30

Bakina, O. V., N. V. Svarovskaya, V. R. Chzhjou, and K. V. Suliz. "Application of ultrasonic treatment for increase the photochemical activity of electroexplosive bicomponent TiO2-Ag nanoparticles." Izvestiya vysshikh uchebnykh zavedenii. Fizika, no. 9 (2022): 3–7. http://dx.doi.org/10.17223/00213411/65/9/3.

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TiO2-Ag nanoparticles with thermal and chemical stability, wide band gap and low toxic are more used photocatalysts for decomposition of organic substances. However, high rate of recombination of electron-hole pairs and high energy of photoactivation significantly limit their usage. Modification of TiO2 with silver promotes surface separation of charges and increases their photochemical activity. In the present study for obtain TiO2-Ag bicomponent nanoparticles was use electric explosion of metal wires in atmosphere 85 vol.% Ar - 15 vol.% O2. This method has a high productivity (170-200 g/h) w

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31

Petit, Charlotte, Lukas D. Bangert, Mahdi Abbasi, Manfred Wilhelm, Anja S. Goldmann, and Christopher Barner-Kowollik. "Stability of Diels–Alder photoadducts in macromolecules." Polymer Chemistry 9, no. 28 (2018): 3850–54. http://dx.doi.org/10.1039/c8py00748a.

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32

Yang, Genping, D. Rhodes, and RJ Joly. "Effects of High Temperature on Membrane Stability and Chlorophyll Fluorescence in Glycinebetaine-Deficient and Glycinebetaine-Containing Maize Lines." Functional Plant Biology 23, no. 4 (1996): 437. http://dx.doi.org/10.1071/pp9960437.

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Pairs of homozygous near-isogenic glycinebetaine-containing (Betl/Bet1) and -deficient (betl/bet1) Fδ lines of Zea maysM L. (maize) were tested for differences in their responses to high temperature. Membrane integrity was evaluated by electrolyte leakage, and the in vivo photochemical activity of PSII was inferred from modulated chlorophyll fluorescence. Both variables were more markedly impaired by thermal stress in glycinebetaine-deficient lines. When whole plants, excised whole leaves or leaf segments were subjected to temperatures above 45�C, Betl/Bet1 lines exhibited less membrane injury

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33

Šandrik, Róbert, Pavol Tisovský, Klaudia Csicsai, et al. "ON/OFF Photostimulation of Isatin Bipyridyl Hydrazones: Photochemical and Spectral Study." Molecules 24, no. 14 (2019): 2668. http://dx.doi.org/10.3390/molecules24142668.

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Four novel isatin hydrazones containing bipyridyl fragments were synthesized as potential ON/OFF switches. Hydrazone Z-isomers exhibit high thermal stability. The characteristic photochemical reaction for all studied hydrazones is the Z–E isomerization in CHCl3. After irradiation of hydrazones 1 and 2 in dimethylformamide (DMF), the photoreaction products are tautomers. When using light with the appropriate wavelength, the photo-tautomerization reaction is reversible. In these conditions, studied hydrazones have ON/OFF switch properties. In the case of hydrazones 1 and 2, by alternating heat a

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34

Beltrán, Freddys R., Marina P. Arrieta, Yaiza Hortal, Gerald Gaspar, Mª Ulagares De la Orden, and Joaquín Martínez Urreaga. "Degradation of a mechanically recycled polylactide/halloysite nanocomposite in an ethanolic food simulant." Journal of Applied Research in Technology & Engineering 2, no. 2 (2021): 63. http://dx.doi.org/10.4995/jarte.2021.15297.

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<p class="JARTEAbstract">This work aims to study the effect of immersion in a ethanolic food simulant in mechanically recycled poly(lactic acid) (PLAR) and its nanocomposites reinforced with halloysite nanotubes (HNT). PLAR was obtained by subjecting PLA to an accelerated ageing process, which includes photochemical, thermal and hydrothermal ageing steps, followed by a final demanding washing step. PLAR was further reinforced with 4 %wt. HNT to improve the properties of the PLAR films. The materials were melt compounded by melt extrusion and processed into films by compression molding. T

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35

Zhu, Xiaozhang, Songjun Liu, Qihui Yue, Wuyue Liu, Shaoming Sun, and Shengjie Xu. "Design of All-Fused-Ring Electron Acceptors with High Thermal, Chemical, and Photochemical Stability for Organic Photovoltaics." CCS Chemistry 3, no. 6 (2021): 1070–80. http://dx.doi.org/10.31635/ccschem.021.202100956.

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36

Wang, Lingyun, Bihong Lai, Xueguang Ran, Hao Tang, and Derong Cao. "Recent Advances of Diketopyrrolopyrrole Derivatives in Cancer Therapy and Imaging Applications." Molecules 28, no. 10 (2023): 4097. http://dx.doi.org/10.3390/molecules28104097.

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Cancer is threatening the survival of human beings all over the world. Phototherapy (including photothermal therapy (PTT) and photodynamic therapy (PDT)) and bioimaging are important tools for imaging–mediated cancer theranostics. Diketopyrrolopyrrole (DPP) dyes have received more attention due to their high thermal and photochemical stability, efficient reactive oxygen species (ROS) generation and thermal effects, easy functionalization, and tunable photophysical properties. In this review, we outline the latest achievements of DPP derivatives in cancer therapy and imaging over the past three

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37

Zanotti, Gloria, Nicola Angelini, Sara Notarantonio, et al. "Bridged Phthalocyanine Systems for Sensitization of Nanocrystalline TiO2Films." International Journal of Photoenergy 2010 (2010): 1–11. http://dx.doi.org/10.1155/2010/136807.

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Phthalocyanines based-dyes represent attractive alternatives to the expensive and polluting pyridyl based Ru complexes because of their photochemical and thermal stability, they do show in fact intense absorption in the UV/blue (Soret band) and the red/near IR (Q band) spectral regions and appear very promising as sensitizer dyes for DSSC. In this contribution we review the state of the art and the recent progress in the application of these materials as dyes for DSSC and present three new dyes which are bridged derivatives of Iron phthalocyanine. Synthesis, optical properties, electrochemical

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38

Selikhanov, Georgii, Anastasia Atamas, Diana Yukhimchuk, Tatiana Fufina, Lyudmila Vasilieva, and Azat Gabdulkhakov. "Stabilization of Cereibacter sphaeroides Photosynthetic Reaction Center by the Introduction of Disulfide Bonds." Membranes 13, no. 2 (2023): 154. http://dx.doi.org/10.3390/membranes13020154.

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The photosynthetic reaction center of the purple nonsulfur bacterium Cereibacter sphaeroides is a useful model for the study of mechanisms of photoinduced electron transfer and a promising component for photo-bio-electrocatalytic systems. The basic research and technological applications of this membrane pigment-protein complex require effective approaches to increase its structural stability. In this work, a rational design approach to genetically modify the reaction centers by introducing disulfide bonds is used. This resulted in significantly increasing the thermal stability of some of the

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39

Patel, Roma, Gregory Salamone, and Isaac Macwan. "The Role of Graphene Monolayers in Enhancing the Yield of Bacteriorhodopsin Photostates for Optical Memory Applications." Applied Sciences 11, no. 20 (2021): 9698. http://dx.doi.org/10.3390/app11209698.

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Bacteriorhodopsin (bR) is a photoactive protein that has gained increasing importance as a tool for optical memory storage due to its remarkable photochemical and thermal stability. The two stable photostates (bR and Q) obtained during the bR photocycle are appropriate to designate the binary bit 0 and 1, respectively. Such devices, however, have limited success due to a low quantum yield of the Q state. Many studies have used genetic and chemical modification as optimization strategies to increase the yield of the Q state. Nonetheless, this compromises the overall photochemical stability of b

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40

Hamilton, Lois E., Peter M. A. Sherwood, and Barbara M. Reagan. "X-Ray Photoelectron Spectroscopy Studies of Photochemical Changes in High-Performance Fibers." Applied Spectroscopy 47, no. 2 (1993): 139–49. http://dx.doi.org/10.1366/0003702934048226.

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The double bonds and aromaticity that impart high thermal stability in fibers often increase the absorption of LTV radiation, resulting in greater susceptibility to photodegradation. This study compares the resistance of three high-performance fibers (Nomex aramid, Kynol novoloid, and PBI) to accelerated light exposure. X-ray photoelectron spectroscopy (XPS) was used to evaluate the photochemical changes on the surfaces of the fibers. On the basis of the C 1 s core-level spectra and oxygen/carbon atomic ratios, the Nomex aramid fibers were photo-oxidized more rapidly than Kynol novoloid and PB

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41

Vital, Roberto Gomes, Caroline Müller, Fábia Barbosa da Silva, et al. "Nitric Oxide Increases the Physiological and Biochemical Stability of Soybean Plants under High Temperature." Agronomy 9, no. 8 (2019): 412. http://dx.doi.org/10.3390/agronomy9080412.

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Thermal stress reduces plant growth and development, resulting in considerable economic losses in crops such as soybeans. Nitric oxide (NO) in plants is associated with tolerance to various abiotic stresses. Nevertheless, there are few studies of the range of observed effects of NO in modulating physiological and metabolic functions in soybean plants under high temperature. In the present study, we investigated the effects of sodium nitroprusside (SNP, NO donor), on anatomical, physiological, biochemical, and metabolic processes of soybean plants exposed to high temperature. Soybean plants wer

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42

Rabie, S. T., and M. A. M. Eid. "Electrical properties and the thermal and photochemical stability of poly(vinyl chloride) films stabilized with some maleyl amide polymers." Journal of Vinyl and Additive Technology 13, no. 4 (2007): 206–14. http://dx.doi.org/10.1002/vnl.20129.

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43

Schmidbaur, Hubert, and Annette Schier. "Silver-free Gold(I) Catalysts for Organic Transformations." Zeitschrift für Naturforschung B 66, no. 4 (2011): 329–50. http://dx.doi.org/10.1515/znb-2011-0401.

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The majority of gold(I) catalysts employed in organic transformations in homogeneous systems are presently generated in situ by reactions of gold halides AuX or their 1 : 1 complexes [(L)AuX] with silver salts AgY (X = Cl, Br; L = R3P, NHC, tht etc.; Y = BF4, PF6, SbF6, OSO2CF3, OC(O)CF3 etc.). This usage of silver salts is not only economically unfavorable, but also has several practical disadvantages regarding inter alia the thermal and photochemical stability of the reaction mixtures, problems of inexact stoichiometries, difficulties in separation and recycling, and cooperative effects due

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44

Frolova, Lyubov A., Natalia P. Piven, Diana K. Susarova, Alexander V. Akkuratov, Sergey D. Babenko, and Pavel A. Troshin. "ESR spectroscopy for monitoring the photochemical and thermal degradation of conjugated polymers used as electron donor materials in organic bulk heterojunction solar cells." Chemical Communications 51, no. 12 (2015): 2242–44. http://dx.doi.org/10.1039/c4cc08146c.

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45

Thanh, Ngo Vo Ke, Nguyen Dang Giang, Lam Quang Vinh, and Huynh Thanh Dat. "A low Cost Microwave Synthesis Method for Preparation of Gold Nanoparticles." Communications in Physics 24, no. 2 (2014): 146. http://dx.doi.org/10.15625/0868-3166/24/2/3809.

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Gold nanoparticles are being used in various biomedical applications due to their small size to volume ratio, extensive thermal stability, less toxic… Many different techniques e.g. chemical, photochemical reduction and electrochemical, gamma have been applied to preparing this nanoparticle. In this paper, we are developing a low-cost technique by using a common microwave system with medium power for synthesizing gold nanoparticles with using sodium citrate (Na3Ct) reduction in chloroauric acid (HAuCl4.3H2O). It was found that the comparing with normal thermal method, the reaction by the micro

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46

Beltrán, F. R., I. Barrio, V. Lorenzo, B. del Río, J. Martínez Urreaga, and M. U. de la Orden. "Valorization of poly(lactic acid) wastes via mechanical recycling: Improvement of the properties of the recycled polymer." Waste Management & Research: The Journal for a Sustainable Circular Economy 37, no. 2 (2018): 135–41. http://dx.doi.org/10.1177/0734242x18798448.

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Poly(lactic acid) (PLA) is a biobased polymer that represents one of the most interesting alternatives to fossil-fuel based polymers in food packaging applications. Most of the PLA used in food packaging is used only once and then discarded, even though the PLA types used in packaging have good properties and stability. Therefore, it seems reasonable to consider the possibility of recycling the used polymer through a mechanical recycling process. The main aims of this work are to study the effect of the mechanical recycling on the properties of PLA and the usefulness of different upgrading met

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Yadav, Rajnee, Vikas Lahariya, and Vikas Bansal. "Evaluation of Thermal Behavior and Properties of Carbon Dots Prepared by Green Synthesis." ECS Transactions 107, no. 1 (2022): 14445–53. http://dx.doi.org/10.1149/10701.14445ecst.

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Carbon quantum dots are highly fluorescent, non-toxic, thermally stable, and water-soluble novel carbon nanomaterials. The dominance of quantum behavior has drawn scientists’ interest due to their good biocompatibility, low toxicity, high physicochemical and photochemical stability, and ease of synthesis. Carbon dots have shown applications in optoelectronics, photovoltaics, photocatalyst, biomedical such as biosensing, bioimaging, drug delivery, and detection for heavy metal ions in food and water samples. In this paper, we reported the microwave-assisted green synthesis of carbon dots using

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Chen, Jinyang, Jie Zhou, Na Li, Yubing Ding, Shiwei Ren, and Minfeng Zeng. "Novel Divinyl-Flanked Diketopyrrolopyrrole Polymer, Based on a Dimerization Strategy for High-Performance Organic Field-Effect Transistors." Polymers 15, no. 23 (2023): 4546. http://dx.doi.org/10.3390/polym15234546.

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In this communication, we report a novel acceptor structural unit, TVDPP, that can be distinguished from classical materials based on TDPP structures. By designing a synthetic route via retrosynthetic analysis, we successfully prepared this monomer and further prepared polymer P2TVDPP with high yield using a Stille-coupling polymerization reaction. The polymer showed several expected properties, such as high molecular weight, thermal stability, full planarity, small π−π stacking distance, smooth interface, and so on. The absorption spectra and energy levels of the polymer were characterized vi

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Signori, Francesca, Massimo Lazzari, Valter Castelvetro, and Oscar Chiantore. "Copolymers of Isopropenyl Alkyl Ethers with Fluorinated Acrylates and Fluoroacrylates: Influence of Fluorine on Their Thermal, Photochemical, and Hydrolytic Stability." Macromolecules 39, no. 5 (2006): 1749–58. http://dx.doi.org/10.1021/ma051672i.

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Yang, Yuheng, Yongshu Xie, Qiong Zhang, Keitaro Nakatani, He Tian, and Weihong Zhu. "Aromaticity-Controlled Thermal Stability of Photochromic Systems Based on a Six-Membered Ring as Ethene Bridges: Photochemical and Kinetic Studies." Chemistry - A European Journal 18, no. 37 (2012): 11685–94. http://dx.doi.org/10.1002/chem.201200354.

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