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Journal articles on the topic 'Thermal degradation and stability'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Dekker, M., K. Hennig, and R. Verkerk. "Differences in Thermal Stability of Glucosinolates in Five Brassica Vegetables." Czech Journal of Food Sciences 27, Special Issue 1 (2009): S85—S88. http://dx.doi.org/10.17221/1079-cjfs.

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The thermal stability of individual glucosinolates within five different Brassica vegetables was studied at 100°C for different incubation times up to 120 minutes. Three vegetables that were used in this study were <I>Brassica oleracea</I> (red cabbage, broccoli and Brussels sprouts) and two were <I>Brassica rapa</I> (pak choi and Chinese cabbage). To rule out the influence of enzymatic breakdown, myrosinase was inactivated prior to the thermal treatments. The stability of three glucosinolates that occurred in all five vegetables (gluconapin, glucobrassicin and 4-methox

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2

Prasad, R. "Thermal stability and degradation of starch derivatives." Journal of Thermal Analysis and Calorimetry 85, no. 2 (2006): 279–84. http://dx.doi.org/10.1007/s10973-005-7038-4.

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3

Rudnik, Ewa, G. Matuschek, N. Milanov, and A. Kettrup. "Thermal stability and degradation of starch derivatives." Journal of Thermal Analysis and Calorimetry 85, no. 2 (2006): 267–70. http://dx.doi.org/10.1007/s10973-005-7274-7.

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4

Mühlebach, A., P. A. van der Schaaf, A. Hafner, and F. Setiabudi. "Thermal stability and degradation of hydrocarbon metathesis polymers." Journal of Molecular Catalysis A: Chemical 132, no. 2-3 (1998): 181–88. http://dx.doi.org/10.1016/s1381-1169(97)00241-0.

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5

Bansal, Raj K., Jagjiwan Mittal, and Prakash Singh. "Thermal stability and degradation studies of polyester resins." Journal of Applied Polymer Science 37, no. 7 (1989): 1901–8. http://dx.doi.org/10.1002/app.1989.070370713.

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6

Circioban, Denisa, Adriana Ledeti, Gabriela Vlase, Titus Vlase, Cristina Dehelean, and Ionut Ledeti. "Thermal stability and kinetic degradation study for dihydroartemisinin." Journal of Thermal Analysis and Calorimetry 142, no. 5 (2020): 2131–39. http://dx.doi.org/10.1007/s10973-020-09902-6.

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7

Zhang, Jing, Yan-Fei Tang, Jin Liu, and Yan Chen. "Thermal Stability and Thermal Degradation Reaction Kinetics of 4,4'-Diphenylmethane Diisocyanatetrimer." Asian Journal of Chemistry 26, no. 5 (2014): 1527–29. http://dx.doi.org/10.14233/ajchem.2014.17278.

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8

Jiang, Bingl, Faquan Lin, Chengjin Huang, et al. "Thermal Degradation Kinetics and Stability Study of Chrysin by Thermal Analysis." Asian Journal of Chemistry 26, no. 19 (2014): 6404–8. http://dx.doi.org/10.14233/ajchem.2014.16393.

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9

Li, Weisheng, Lianghe Shi, Deyan Shen, and Buoliang Luo. "Structure-thermal stability relationship and thermal degradation of chlorinated atactic polypropylene." Polymer Degradation and Stability 22, no. 4 (1988): 375–85. http://dx.doi.org/10.1016/0141-3910(88)90008-0.

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10

Lv, Xiaomin, Jialin Fang, Jinghan Xie, Xue Yang, and Jiangbo Wang. "Thermal stability of phosphorus-containing epoxy resins by thermogravimetric analysis." Polymers and Polymer Composites 26, no. 7 (2018): 400–407. http://dx.doi.org/10.1177/0967391118808701.

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The thermal stabilities of epoxy resin/diethyl bis(2-hydroxyethyl)aminomethylphosphonate (EP/DBAMP) systems were investigated by thermogravimetric analysis (TGA) under non-isothermal conditions in nitrogen atmosphere. Kissinger and Flynn–Wall–Ozawa methods were used to study the thermal degradation process. The results showed a remarkable increase of activation energy ( E) in the presence of DBAMP, which indicated that the addition of DBAMP retarded the thermal degradation of EP. The Flynn–Wall–Ozawa analysis further revealed that DBAMP significantly increased the activation energy in the earl

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11

Iordache, Simona, Bogdan Tutunaru, Adriana Samide, and Alexandru Popescu. "Electrochemical and Thermal Stability of Nystatin Drug." Revista de Chimie 70, no. 2 (2019): 503–5. http://dx.doi.org/10.37358/rc.19.2.6944.

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The analysis of synthetic / residual drugs is very important due to their systemic toxicity. Simple and rapid electrochemical degradation of nystatin drug was accomplished using constant current density electrolysis on platinum electrode. Electrochemical behavior of nystatin drug was investigated on different metallic electrodes by cyclic voltammetry. In saline solution, distinctive oxidation peak are observed on the lead and copper electrodes. The degree of electrochemical degradation reaches the maximum value of 100 % in 10 minutes on platinum electrodes. Thermal stability of nystatin drug w

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12

Chang, De Qiang, Jing Xian Liu, Ning Mao, and Bao Zhi Chen. "Research on Thermal Degradation Kinetics of Polyphenylene Sulfide Filter Media." Applied Mechanics and Materials 300-301 (February 2013): 1171–74. http://dx.doi.org/10.4028/www.scientific.net/amm.300-301.1171.

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In order to study the thermal stability of PPS (polyphenylene sulfide) filter media, by means of thermogravimetry(TG), thermal degradation kinetics behavior of two kinds of PPS filter media were analyzed. The kinetic parameters of PPS filter media were obtained according to Flynn-Wall-Ozawa method. Thermal stability of PPS filter media was discussed. It was found that the initial decomposition temperature and activation energy of N3 sample are all higher than B1 sample, the thermal stability of N3 sample is better than B1 sample, and kinetic analysis can be used as an important method to evalu

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13

Qian, Zhong, Jingjing Zhao, Xue Bai, et al. "Thermal Stability of Glucokinases inThermoanaerobacter tengcongensis." BioMed Research International 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/646539.

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In the genome ofThermoanaerobacter tengcongensis, three genes belonging to ROK (Repressor, ORF, and Kinase) family are annotated as glucokinases (GLKs). Using enzyme assays, the three GLKs were identified as ATP-dependent GLK (ATP-GLK), ADP-dependent GLK (ADP-GLK), and N-acetyl-glucosamine/mannosamine kinase (glu/man-NacK). The kinetic properties of the three GLKs such asKm,Vmax, optimal pH, and temperature were characterized, demonstrating that these enzymes performed the specific functions against varied substrates and under different temperatures. The abundance of ATP-GLK was attenuated whe

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14

Sun, Jie, Qiang Qiang Zhao, Zheng Yan Cao, Hai Ning Lv, Cheng Qun Wang, and Zai Sheng Cai. "Biodegradable Oph-POSS/Poly(Lactic Acid) Nanocomposites: Morphology, Thermal Stability and Degradation Property." Advanced Materials Research 1120-1121 (July 2015): 352–56. http://dx.doi.org/10.4028/www.scientific.net/amr.1120-1121.352.

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The purpose of this work was to produce nanocomposites of polylactic acid with oph-POSS (octaphenyl-Polyhedral Oligomeric Silsesquioxanes)-based biodegradable polyester and study morphology, thermal stability and degradation property. Oph-POSS was synthesized via limited-hydrolytic condensation of phenyl trimethoxysilane catalyzed by tetramethylammonium hydroxide. By adding different mass fractions of oph-POSS into the PLA matrix, oph-POSS/PLA nanocomposites were successfully prepared by the solution casting method using chloroform as solvent. SEM(scanning electron microscopy) observations ind

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15

Zhang, Wenzheng, Ning Jiang, Tingting Zhang, and Tiansheng Li. "Thermal Stability and Thermal Degradation Study of Phenolic Resin Modified by Cardanol." Emerging Materials Research 9, no. 1 (2020): 1–6. http://dx.doi.org/10.1680/jemmr.18.00133.

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16

Diab, M. A., A. Z. El-Sonbati, and D. M. D. Bader. "Thermal stability and degradation of chitosan modified by benzophenone." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 79, no. 5 (2011): 1057–62. http://dx.doi.org/10.1016/j.saa.2011.04.019.

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17

Rogestedt, Mikael, and Thomas Hjertberg. "Degradation of poly(vinyl chloride) with increased thermal stability." Macromolecules 25, no. 23 (1992): 6332–40. http://dx.doi.org/10.1021/ma00049a033.

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18

Abd-Elrahman, M. I., and S. M. Ahmed. "Thermal Degradation Kinetics and Geometrical Stability of D-Sucrose." International Journal of Polymeric Materials 58, no. 6 (2009): 322–35. http://dx.doi.org/10.1080/00914030902859273.

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19

Diab, M. A., A. Z. El-Sonbati, D. M. D. Bader, and M. Sh Zoromba. "Thermal Stability and Degradation of Chitosan Modified by Acetophenone." Journal of Polymers and the Environment 20, no. 1 (2011): 29–36. http://dx.doi.org/10.1007/s10924-011-0330-4.

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20

Hermosín, M. C., J. Cornejo, and J. L. Pérez-Rodriguez. "Thermal stability of chlordimeform-montmorillonite complex." Clay Minerals 20, no. 1 (1985): 153–59. http://dx.doi.org/10.1180/claymin.1985.020.1.12.

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Studies of the thermal stability of organic compounds adsorbed on clay minerals are of interest from several points of view, e.g. the type and strength of bonding forces between the organics and the clay surfaces (Chou & McAtee, 1969; Yariv et al., 1971; Lacher et al., 1981), and the effect of the clay surface on stability or degradation mechanism of the organic compounds adsorbed on clays (Bodenheimer et al., 1966; Yariv et al., 1971; Durand et al., 1972).

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21

Tian, Xiu Juan. "Thermal Stabilities and the Thermal Degradation Kinetics Study of the Flame Retardant Epoxy Resins." Advanced Materials Research 1053 (October 2014): 263–67. http://dx.doi.org/10.4028/www.scientific.net/amr.1053.263.

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Thermal stability and thermal degradation kinetics of epoxy resins with 2-(Diphenylphosphinyl)-1, 4-benzenediol were investegated by thermogravimetric analysis (TGA) at different heating rates of 5 K/min, 10 K/min, 20 K/min and 40 K/min. The thermal degradation kinetic mechanism and models of the modified epoxy resins were determined by Coast Redfern method.The results showed that epoxy resins modified with the flame retardant had more thermal stability than pure epoxy resin. The solid-state decomposition mechanism of epoxy resin and the modified epoxy resin corresponded to the controlled dece

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22

Sheraz, Muhammad Ali, Sadia Hafeez Kazi, Sofia Ahmed, Zubair Anwar, and Iqbal Ahmad. "Photo, thermal and chemical degradation of riboflavin." Beilstein Journal of Organic Chemistry 10 (August 26, 2014): 1999–2012. http://dx.doi.org/10.3762/bjoc.10.208.

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Riboflavin (RF), also known as vitamin B2, belongs to the class of water-soluble vitamins and is widely present in a variety of food products. It is sensitive to light and high temperature, and therefore, needs a consideration of these factors for its stability in food products and pharmaceutical preparations. A number of other factors have also been identified that affect the stability of RF. These factors include radiation source, its intensity and wavelength, pH, presence of oxygen, buffer concentration and ionic strength, solvent polarity and viscosity, and use of stabilizers and complexin

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23

Prasad, Nirupama, Vijay Kumar Agarwal, and Shishir Sinha. "Thermal degradation of coir fiber reinforced low-density polyethylene composites." Science and Engineering of Composite Materials 25, no. 2 (2018): 363–72. http://dx.doi.org/10.1515/secm-2015-0422.

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AbstractIn the present study, the effect of fiber surface treatments (alkali and acrylic acid) on the thermal degradation behavior of coir fiber (CF)-low-density polyethylene (LDPE) composites with or without compatibilizer (maleic anhydride grafted LDPE, MA-g-LDPE) using thermogravimetric and derivative thermogravimetric analyses (TG/DTG) was analyzed and compared with those of untreated fiber composites. The TG/DTG results revealed that the thermal stability of the CF improved after the chemical treatments. However, the composite containing treated fiber showed lower thermal stability and st

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24

Ketata, N., C. Sanglar, H. Waton, et al. "Thermal Degradation of Polyurethane Bicomponent Systems in Controlled Atmospheres." Polymers and Polymer Composites 13, no. 1 (2005): 1–26. http://dx.doi.org/10.1177/096739110501300101.

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Although the thermal degradation of polyurethanes has been extensively studied in the past, the use of a panoply of recent analytical techniques has provided more detailed data and enabled us to confirm prior findings on the thermal degradation of bicomponent polyurethanes. The thermal behaviour of bicomponent polyurethanes in conditions of controlled atmosphere and temperature was characterized by determining their heat stability by on-line TGA/FT-IR coupling and off-line TGA/TCT/GC/MS coupling in order to identify the volatile compounds released. Degradation residues were analyzed by FT-IR a

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25

Luca Motoc, Dana, Santiago Ferrándiz Bou, and Adrian Petru Pop. "Thermal degradation and stability of wood particle composites deployed as decorative components." MATEC Web of Conferences 184 (2018): 01016. http://dx.doi.org/10.1051/matecconf/201818401016.

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The contribution aims to design, deliver and debate on thermal degradation and thermal stability of several wood/PP composite materials. The wood polymer-based composites (n. WPCs) were manufactured through injection moulding by deploying various wood species under 10% and 40% weight fraction within the thermoplastic matrix. Thermal degradation of WPC specimens revealed similarities in characteristics, small discrepancies in the degradation temperatures but higher contents in the char formation, between 10% to 35% with wood content increase.

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26

Oancea, S., and O. Drághici. " pH and thermal stability of anthocyanin-based optimised extracts of Romanian red onion cultivars." Czech Journal of Food Sciences 31, No. 3 (2013): 283–91. http://dx.doi.org/10.17221/302/2012-cjfs.

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Total phenolics and anthocyanins in ten samples of Romanian red onion cultivars, extraction optimisation and pH/thermal stability were investigated. Extraction with 80% aqueous ethanol leads to an increased anthocyanin yield. The level of phenolics and anthocyanins in bulbs is highly variable and was found higher in the Red of Turda cultivar. The highest value of 99.66 mg/100 g FM was obtained for red onion dry skins. Strong acidic conditions favoured the better stability of anthocyanin extracts during 10-day storage. The first order rate constant value of anthocyanin degradation during storag

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27

E, Yan Peng, Li Qiang Wan, Fa Rong Huang, and Lei Du. "Thermal Stability of a Novel Polytriazoleimide." Advanced Materials Research 557-559 (July 2012): 991–95. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.991.

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A new polytriazoleimide (PTAI) was prepared from 1,2,3-triazole-containing diamine and 4,4’-(hexafluoroisopropylidene) diphthalic anhydride by polycondensation. The thermal stability was investigated. The PTAI was pyrolyzed at 400 °C and 750 °Cseparately and the pyrolysis was traced by the Py/GC/MS combined technique. Nitrogen and related compounds which result from the cleavage of C-N and N-N bonds in the polymer are found in the pyrolysis products at 400 °C. The further decomposition of PTAI would take place at imide rings and the chain units between imide rings at 750 °C. A degradation mech

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28

Fabrizi, A., Marcello Cabibbo, R. Cecchini, et al. "Thermal Stability of Nanostructured Coatings." Materials Science Forum 653 (June 2010): 1–22. http://dx.doi.org/10.4028/www.scientific.net/msf.653.1.

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This paper is a review of the thermal stability of nanostructured nitride coatings synthesised by reactive magnetron sputtering technique. In the last three decade, nitride based coatings have been widely applied as hard wear-protective coatings in mechanical components. More recently, a larger interest has been addressed to evaluate the thermal stability of such coatings, as their mechanical and tribological properties are deteriorated at high working temperatures. This study describes the microstructural, mechanical and compositional stability of nano-crystalline Cr-N and nano-composited Ti-

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29

Ye, Xiaochuan, Liming Zeng, and Tao Liu. "Thermal stability and thermal degradation kinetic study of bismaleimide-epoxy modified novolac resin." Composite Interfaces 19, no. 7 (2012): 461–73. http://dx.doi.org/10.1080/15685543.2012.760928.

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30

Zou, Hantao, Luoxin Wang, Changhai Yi, and Houlei Gan. "Thermal Stability and Thermal Degradation Kinetics of Poly(Trimethylene-co-Butylene Terephthalate) Copolymers." Journal of Macromolecular Science, Part B 50, no. 8 (2011): 1559–70. http://dx.doi.org/10.1080/00222348.2010.541841.

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31

ARSHAD, M. A., A. MAAROUFI, G. PINTO, S. EL-BARKANY, and A. ELIDRISSI. "Morphology, thermal stability and thermal degradation kinetics of cellulose-modified urea–formaldehyde resin." Bulletin of Materials Science 39, no. 6 (2016): 1609–18. http://dx.doi.org/10.1007/s12034-016-1304-x.

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32

Domínguez, JC, B. del Saz-Orozco, M. Oliet, MV Alonso, and F. Rodriguez. "Thermal properties and thermal degradation kinetics of phenolic and wood flour-reinforced phenolic foams." Journal of Composite Materials 51, no. 1 (2016): 125–38. http://dx.doi.org/10.1177/0021998316636672.

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In the present work, the thermal stability, changes in chemical structure during thermal degradation, and the kinetics of thermal degradation of a phenolic foam were studied. An 8.5 wt% of Pinus radiata wood flour reinforcement was added to the phenolic foam. A commercial phenolic resol was used as the matrix for the foam. The wood flour-reinforced foam showed a structure similar to the phenolic foam according to the Fourier transform infrared spectroscopy results. The wood flour increased the thermal stability of the phenolic foam in the first stage of thermal degradation ( T 5%), decreased i

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33

Mondal, S., and J. L. Hu. "Thermal Degradation Study of Functionalized MWNT Reinforced Segmented Polyurethane Membrane." Journal of Elastomers & Plastics 38, no. 3 (2006): 261–71. http://dx.doi.org/10.1177/0095244306064237.

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The thermal degradation of polytetramethylene glycol (PTMG, Mn 1/42900) based polyurethane (PU), along with four different weight contents (such as 0.25, 0.50, 1.0, and 2.5 wt%) of functionalized multiwalled nanotube (MWNT) reinforced PUs are studied in air as well as in nitrogen atmosphere. The degradation results are reported in 10 and 50% weight loss and derivative of thermogravimetry (DTG). As expected, PUs are thermally more stable in nitrogen than in air. However, the influence of MWNT content on thermal stability is unclear. At 0.25 and 0.50 wt% of MWNT content, thermal stability declin

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34

Liu, Yang, Zhaodong Ding, Xuejiao Liu, Xuan Wang, and Liping Zhang. "High thermodynamic stability study of PLA/LCNF composite." Journal of Thermoplastic Composite Materials 32, no. 8 (2018): 1017–30. http://dx.doi.org/10.1177/0892705718779120.

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Thermal degradation behaviors of one composite constituted by poly(lactic acid) (PLA), cellulose nanofibrils (CNF), and lignin–cellulose nanofibrils (LCNF) in a nitrogen atmosphere were studied using thermogravimetric analysis (TGA). It was found that the thermal degradation stability of the PLA/LCNF composite was improved when compared to PLA and PLA/CNF. The Flynn–Wall–Ozawa method was used to determine the apparent activation energy of the composite samples which was based on a set of TGA data obtained at different heating rates. It was shown that the conversion functions calculated by mean

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35

Chiang, Ming Feng, and Tzong Ming Wu. "Thermal Degradation of Novel Exfoliated PLLA/LDH Nanocomposites." Advanced Materials Research 47-50 (June 2008): 415–18. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.415.

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In this article, we report the fabrication of novel poly(L-lactide) (PLLA) nanocomposites based on PLLA and magnesium-aluminium layered double hydroxides (MgAl-LDH) which were mixed the polylactide with carboxyl end group (PLA-COOH) in acetone . Both the X-ray diffraction data and transmission electron microscopy images of the PLLA/LDH nanocomposites indicate that most of the LDH layers were disorderly exfoliated into the PLLA matrix. The thermal degradation behaviors of PLLA and its nanocomposites were studied using thermal gravimetric analysis (TGA) under nitrogen atmosphere at heating rates

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36

Mu, Qiu Hong, Dan Peng, Feng Wang, Jin Hui Li, and Shuo Zhang. "Thermal Stability and Kinetics of the Thermal Degradation of Thermal Conductive Silicone Rubber Filled with Al₂O₃ and ZnO." Materials Science Forum 926 (July 2018): 45–50. http://dx.doi.org/10.4028/www.scientific.net/msf.926.45.

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The kinetics of the thermal degradation and thermal stability of thermal conductive silicone rubber filled with Al2O3 and ZnO were investigated by thermogravimetric analysis in a flowing nitrogen atmosphere at a heating rate of 10°C/min. The rate parameters were evaluated by the method of Freeman–Carroll. The results show that the thermal degradation of silicone rubber begins at about 350°C and ends at about 600°C. The thermal degradation is multistage, in which zero-order reactions are principal. The kinetics of the thermal degradation of thermal conductive silicone rubber has relevance to it

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37

Janković, Bojan, and Slavko Mentus. "Thermal stability and nonisothermal kinetics of Folnak® degradation process." Drug Development and Industrial Pharmacy 36, no. 8 (2010): 980–92. http://dx.doi.org/10.3109/03639041003628890.

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38

El-Halwany, M., M. Diab, A. EI-Sonbati, and D. D. "Thermal Stability and Degradation of Chitosan Modified by Benzophenone (Dept.P)." MEJ. Mansoura Engineering Journal 35, no. 1 (2020): 17–25. http://dx.doi.org/10.21608/bfemu.2020.124740.

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39

Diab, Mostafa Amin, Adel Zak El-Sonbati, Mohamed Mohamed Al-Halawany, and Dina Mohamed Diaa Bader. "Thermal Stability and Degradation of Chitosan Modified by Cinnamic Acid." Open Journal of Polymer Chemistry 02, no. 01 (2012): 14–20. http://dx.doi.org/10.4236/ojpchem.2012.21003.

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40

Gupta, Tarakranjan, and Basudam Adhikari. "Thermal degradation and stability of HTPB-based polyurethane and polyurethaneureas." Thermochimica Acta 402, no. 1-2 (2003): 169–81. http://dx.doi.org/10.1016/s0040-6031(02)00571-3.

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41

Shiojima, Kenji. "Thermal stability and degradation mechanism of WSiN/InGaP Schottky diodes." Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures 14, no. 2 (1996): 652. http://dx.doi.org/10.1116/1.589152.

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42

Junnarkar, G., and S. Stavchansky. "Thermal Degradation of Famotidine in Aqueous Solution Stability Indicating Assay." Analytical Letters 25, no. 10 (1992): 1907–13. http://dx.doi.org/10.1080/00032719208018261.

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43

Liu, Xingxun, Yanfei Wang, Long Yu, et al. "Thermal degradation and stability of starch under different processing conditions." Starch - Stärke 65, no. 1-2 (2012): 48–60. http://dx.doi.org/10.1002/star.201200198.

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44

Caspersen, Mikael Bjerg, Johannes P. Roubroeks, Liu Qun, et al. "Thermal degradation and stability of sodium hyaluronate in solid state." Carbohydrate Polymers 107 (July 2014): 25–30. http://dx.doi.org/10.1016/j.carbpol.2014.02.005.

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45

Diab, Mostafa Amin, Adel Zaki El-Sonbati, Ibrahim Mohi El-dien, and Dina Mohamed Diaa Bader. "Thermal stability and degradation of chitosan modified with phenylacetic acid." Korean Journal of Chemical Engineering 30, no. 10 (2013): 1966–71. http://dx.doi.org/10.1007/s11814-013-0134-4.

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46

Mendez, Andreas, Pedro Chagastelles, Eduardo Palma, Nance Nardi, and Elfrides Schapoval. "Thermal and alkaline stability of meropenem: Degradation products and cytotoxicity." International Journal of Pharmaceutics 350, no. 1-2 (2008): 95–102. http://dx.doi.org/10.1016/j.ijpharm.2007.08.023.

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47

Kang, E. T., K. G. Neoh, Y. K. Ong, K. L. Tan, and B. T. G. Tan. "Thermal stability and degradation of some chemically synthesized polypyrrole complexes." Thermochimica Acta 181 (May 1991): 57–70. http://dx.doi.org/10.1016/0040-6031(91)80412-c.

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48

RAJINI, P. SUJA PREMA, R. MURUGESAN, and S. PERUMAL. "ROLE OF MOLYBDENUM TRIOXIDE ON THERMAL STABILITY OF POLYANILINE NANOCOMPOSITE." International Journal of Nanoscience 11, no. 03 (2012): 1250025. http://dx.doi.org/10.1142/s0219581x12500251.

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Molybdenum trioxide (MoO3) grains were coated with conducting organic polymer of polyaniline. The as-prepared nanocomposite samples were characterized by Fourier transformed infrared (FTIR) spectra, X-ray diffraction (XRD) and Thermogravimetry (TGA). The XRD curves shows that, [Formula: see text] have high crystallinity due to the presence of large number of sharp peaks. From the XRD pattern the particle size is evaluated by using Debye-Scherrer's formula and the average particle size of [Formula: see text] and [Formula: see text] nanocomposites are found to be 46 and 32 nm, respectively. This

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49

He, Can Zhong, Zheng Peng, Jie Ping Zhong, et al. "Thermal and Thermo-Oxidative Degradations of Deproteinized Natural Rubber and Natural Rubber." Advanced Materials Research 306-307 (August 2011): 50–57. http://dx.doi.org/10.4028/www.scientific.net/amr.306-307.50.

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Deproteinization of natural rubber was achieved in the latex stage. The structure of deproteinized natural rubber (DPNR) was characterized by fourier transform infrared spectroscopy (FTIR). The thermo degradation of DPNR was studied by thermogravimetry analysis (TG) under air atmosphere and nitrogen atmosphere. The kinetic parameters apparent activation energies (Ea) of the thermal decomposition reaction been calculated from the TG curves using the method described by Broido. And the results were compared with the thermo degradation of natural rubber (NR) under the same conditions. The effect

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Paulsdorf, Jürgen, Hans-Dieter Wiemhöfer, Andrej Orinák, Petr Zámostný, Zdeněk Bělohlav, and David Baxter. "Application of pyrolysis-capillary gas chromatography with NPD detection in thermal degradation of polyphosphazenes study." Open Chemistry 5, no. 1 (2007): 271–90. http://dx.doi.org/10.2478/s11532-006-0047-8.

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Abstract:

AbstractPolyphosphazenes represent a unique class of polymers with a backbone composed of alternating phosphorous and nitrogen atoms. The thermal behaviour and decomposition of a variety of polyphosphazenes depends on the type of side groups present. Especially those that bear aryloxy side groups, possess a high temperature stability as well as excellent flame resistance. Pyrolysis-capillary gas chromatography has been used in a study of three polyphosphazene samples for thermal stability characterisation. Degradation products were detected with three single detectors for flame ionisation (FID

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