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T. Chinnadurai S. Arungalai Vendan 《Journal of Thermal Analysis and Calorimetry》2017,127(3):1995-2003
PC/ABS thermoplastic blends are widely employed in manufacturing sectors, as it yields good mechanical behavior when subjected to dynamic loading conditions. While investigating the fundamental nature of PC/ABS blends, ultrasonic welding process appears to suit their joining as compared to other conventional techniques. This paper focuses on PC/ABS welding using ultrasonic and the subsequent investigation from the insight of thermal science. It is imperative for the materials to retain key properties after subjecting it to welding. Examinations to evaluate these properties through DSC reveal a lower onset temperature change and a small variation of glass transition temperature, respectively, for parts which indicate minimal changes in thermal properties in welded and non-welded specimens. Apparent activation energies determined from TG data are practically independent of heating rates, which suggests that the most important process in the degradation of these materials corresponds to ABS. Those mixtures with high PC content show a clear increase in apparent activation energies with heating rate, suggesting that the thermal degradation mechanism of these samples is composed of several complex processes, each predominant during different stages of the overall process. SEM is used to investigate the structural morphology of the welded parts. 相似文献
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Murugesan Dinesh Subramanyam Deepika Rajendran HarishKumar Chinnadurai Immanuel Selvaraj Selvaraj Mohana Roopan 《Applied biochemistry and biotechnology》2018,185(2):450-463
The current study indicates that octyl-β-D-glucopyranoside (OGP) as a detergent which has the ability to make the lipid layer stiff. OGP was subjected for toxicity studies and in vitro cytotoxicty assays on cancerous HeLa and non-cancerous myoblasts H9c2 cell lines. Test against aquatic organisms were carried out in Artemia salina and LC50 values were calculated. Hemolytic activity tested for blood bio-compalibity showed hemolysis rate of 10–16%, followed by thrombolytic activity to burst the clots in blood. Also, the samples showed good lysis when compared to the standard streptokinase. Furthermore, α-amylase activity has been carried out to check the inhibition of α-amylase by the OGP. Finally, antibacterial activity has been tested against four different pathogens and their MIC values have been calculated. 相似文献
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Chinnadurai Amutha 《合成通讯》2013,43(3):328-337
Nucleophilic addition of 1‐methyl‐2‐arylethylhydroxylamine to substituted β‐nitrostyrene under solvent‐free conditions has led to unexpected nitrones via a tandem process involving 1,4‐addition and elimination. 相似文献
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Chinnadurai T. Prabaharan N. Raj N. Mohan Pandian M. Karthigai 《Journal of Thermal Analysis and Calorimetry》2018,132(3):1813-1824
Journal of Thermal Analysis and Calorimetry - Automobile industries are focusing toward the reduction in the weight of vehicle that leading to cost reduction and improving the fuel efficiency.... 相似文献
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Avija Ajayakumar Chinnadurai Muthu Amarjith V. Dev Johnpaul K. Pious Chakkooth Vijayakumar 《化学:亚洲杂志》2022,17(1):e202101075
Three-dimensional (3D) halide perovskites (HPs) are in the spotlight of materials science research due to their excellent photonic and electronic properties suitable for functional device applications. However, the intrinsic instability of these materials stands as a hurdle in the way to their commercialization. Recently, two-dimensional (2D) HPs have emerged as an alternative to 3D perovskites, thanks to their excellent stability and tunable optoelectronic properties. Unlike 3D HPs, a library of 2D perovskites could be prepared by utilizing the unlimited number of organic cations since their formation is not within the boundary of the Goldschmidt tolerance factor. These materials have already proved their potential for applications such as solar cells, light-emitting diodes, transistors, photodetectors, photocatalysis, etc. However, poor charge carrier separation and transport efficiencies of 2D HPs are the bottlenecks resulting in inferior device performances compared to their 3D analogs. This minireview focuses on how to address these issues through the adoption of different strategies and improve the optoelectronic properties of 2D perovskites. 相似文献
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Chinnadurai Karunanithy Kasiviswanathan Muthukumarappan 《Applied biochemistry and biotechnology》2010,162(1):264-279
Pretreatment is being the first and most expensive step, it has pervasive impacts on all other steps in overall conversion
process. There are several pretreatment methods using physical, chemical, and biological principles which are under various
stages of investigation. Extrusion can be used as one of the physical pretreatment methods towards biofuel production. The
objective of this study was to evaluate the effect of barrel temperature and screw speed on sugar recovery from corn stover,
to select a suitable enzyme combination and its ratio. Corn stover was pretreated in a single screw extruder with five screw
speeds (25, 50, 75, 100, and 125 rpm) and five barrel temperatures (25, 50, 75, 100, and 125 °C). In order to select a suitable
enzyme combination and ratio, different levels of cellulase and β-glucosidase, multienzyme complex and β-glucosidase were
used during saccharification of pretreated corn stover. From the statistical analysis, it was found that screw speed and temperature
had a significant effect on sugar recovery from corn stover. Higher glucose, xylose, and combined sugar recovery of 75, 49,
and 61%, respectively, were recorded at 75 rpm and 125 °C. This pretreatment condition resulted in 2.0, 1.7, and 2.0 times
higher than the control sample using 1:4 cellulase and β-glucosidase combination. 相似文献
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Perumal Rajakumar Chinnadurai Satheeshkumar Sebastian Raja 《Tetrahedron letters》2010,51(39):5167-5172
Fréchet-type dendrimers with hole-transporting diphenylamine as surface group and electron-transporting triazole moiety as building block have been synthesized by convergent synthetic strategy through ‘click chemistry’ methodology. First generation dendrimer exhibits longer relaxation time, higher quantum yield in the fluorescence spectrum, and better thermal stability than the zero and second generation dendrimers. CV studies showed irreversible reduction potential and the formation of radical cation due to diphenylamine moiety. 相似文献
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Sadhasivam Velu Mathappan Mariyappan Harikrishnan Muniyasamy Chithiraikumar Chinnadurai Murugesan Sepperumal Siva Ayyanar 《Research on Chemical Intermediates》2018,44(4):2853-2866
Research on Chemical Intermediates - A template consisting of Pd(OAc)2 immobilized on imine-functionalized microporous covalent triazine polymer network (Pd/TATAE) was synthesized and found to be... 相似文献
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