Synthesis and Physical Properties of Novel 7, 12-Diaryl-N-phenylbenzo[k]fluoranthene-9, 10-dicarbox- imides
Yuki Nakahara,
Haruki Shimosasa,
Ryuta Miyatake,
Naoki Kobayashi,
Mitsunori Oda
Issue:
Volume 4, Issue 6, December 2016
Pages:
52-58
Received:
14 December 2016
Accepted:
22 December 2016
Published:
16 January 2017
Abstract: The title arene-dicarboximides 8a–8d, having a benzo[k]fluoranthene skeleton, were synthesized in two steps from N-phenyl-1, 3-diarylisobenzofuran-5, 6-dicarboximides 4a–4d by the Diels-Alder reaction with acenaphthylene and subsequent dehydration with trifluoromethanesulfonic acid. Under photo-excitation these dicarboximides emit blue light, notably, with high quantum yields.
Abstract: The title arene-dicarboximides 8a–8d, having a benzo[k]fluoranthene skeleton, were synthesized in two steps from N-phenyl-1, 3-diarylisobenzofuran-5, 6-dicarboximides 4a–4d by the Diels-Alder reaction with acenaphthylene and subsequent dehydration with trifluoromethanesulfonic acid. Under photo-excitation these dicarboximides emit blue light, notab...
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Utilization of Recycled Polypropylene for Production of Eco-composite Reinforced with Leaf Sheath Fiber of Betel-Nut Plant
Pathik Shah,
Rataram Prajapati,
Bornali Dey,
Dipsankar Maiti
Issue:
Volume 4, Issue 6, December 2016
Pages:
59-66
Received:
27 October 2016
Accepted:
3 December 2016
Published:
17 January 2017
Abstract: The interface modification of leaf sheath fiber of betel nut was accomplished by NaOH & Silane coupling agent. The chemically treated (alkaline and silane) fibers are analyzed by FT-IR. The incorporation of these bio-fibers with Recycled Polypropylene (5-20%wt fiber) was carried out by twin screw extruder. The standard test specimens were prepared by injection molding. Mechanical and thermal characteristics of the blends systems were studied to evaluate the effect of chemically treated fibers content on recycled polypropylene. It has been found that as there is a decrease in tensile strength and elongation, the tensile modulus was found to be increased with the chemically treated fiber content. There is a good dispersion of both type treated fibers materials in recycled PP matrix result in an expansion in their use into more diverse, and technically demanding, application areas. Biodegradability (Soil Burial Test), properties of green composite is also tested. It suggest that these Eco-composite moderately biodegradable. This research paper seeks to provide use of recycled pp with non-food renewable material and consider the environmental and economic benefits of the materials.
Abstract: The interface modification of leaf sheath fiber of betel nut was accomplished by NaOH & Silane coupling agent. The chemically treated (alkaline and silane) fibers are analyzed by FT-IR. The incorporation of these bio-fibers with Recycled Polypropylene (5-20%wt fiber) was carried out by twin screw extruder. The standard test specimens were prepared ...
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Quantum-Chemical Study the Nature of Coordination Bond in SiCl4←N(CH3)3 Complex
Valentin Petrovich Feshin,
Elena Valentinovna Feshina
Issue:
Volume 4, Issue 6, December 2016
Pages:
67-72
Received:
27 September 2016
Accepted:
20 October 2016
Published:
18 January 2017
Abstract: Quantum-chemical calculations were performed for the system SiCl4←N(CH3)3 using the MP2/6-31+G(d) level with total optimization of its geometry and at different fixed Si…N distances (from 1.9 to 4.5 Å). The coordination bond in the complex is a result of participation ofdifferent AO’s of N and Si atoms (along with orbitals of other atoms of the molecule) in the formation of a series of MO’s, the number of which increases on convergence of coordination centers. This coordination bond is of the same nature as covalent bond is. Formation of such bond results in variations in partial charges of atoms and in populations of their orbitals.
Abstract: Quantum-chemical calculations were performed for the system SiCl4←N(CH3)3 using the MP2/6-31+G(d) level with total optimization of its geometry and at different fixed Si…N distances (from 1.9 to 4.5 Å). The coordination bond in the complex is a result of participation ofdifferent AO’s of N and Si atoms (along with orbitals of other atoms of th...
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