9781926895000

This book covers a collection of topics that reflect the diversity of modern trends in chemistry and chemical engineering. It presents leading-edge research from some of the brightest and most well known scientists from around the world. Contributions range from new methods to novel applications of existing methods to give readers an understanding of the material and/or structural behavior of new and advanced systems. The book offers a broad scope of new research for academics, researchers, and engineering professionals, which has potential for applications in several disciplines of engineering and science. Topics include: Time evolution of the electronegativity and its various scales and the interrelationship between electronegativity and other periodic parameters The starch nanocomposite and nanoparticles and its biomedical applications The lamination of nanofiber at different temperatures Electrospinning of chitosan (CHT) and how it can be improved by the addition of synthetic materials including carbon nanotubes (CNTs) Smart nanofibers based on nylon 6,6/polyethylene glycol blend Nano-biocomposites with chitosan matrix and carbon nanotubes (CNTs) Polypyrrole-coated polyacrylonitrile electrospun nanofibers Semi-empirical AM-1 studies on porphyrin, which include global reactivity parameters, local reactivity parameters, and atomic charge

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Dr. A.K. Haghi holds a BSc in urban and environmental engineering from the University of North Carolina (USA); and MSc in mechanical engineering from North Carolina AT State University (USA); a DEA in applied mechanics, acoustics, and materials from the Universit de Technologie de Compigne (France); and a PhD in engineering sciences from the Universit de Franche-Comt (France). He has written about 1000 original articles, 250 monographs, and 170 chapters in 40 volumes. It is apparent from this work that he has made valuable contributions to the theory and practice of chemical engineering, heat and mass transfer, porous media, industrial drying, polymers, nanofibers, and nanocomposites. Dr. Haghi is Editors-In-Chief of the International Journal of Chemoinformatics and Chemical Engineering and Editor-in-Chief of the Polymers Research Journal. He is an editorial board member for many US and internationally published journals and is also a Senior Editor for Apple Academic Press (US and Canada). He served as an associate member of the University of Ottawa and was a member of the Canadian Society of Mechanical Engineering. He currently serves as a faculty member at the University of Guilan (Iran).

List of Contributors	p. ix
List of Abbreviations	p. xi
Preface	p. xv
Time Evolution of the Electronegativity Part-1: Concepts and-Scales	p. 1
Introduction	p. 1
Various Scales of Electronegativity	p. 2
Common Proposition Regarding Electronegativity	p. 20
Unit of Electronegativity	p. 21
Inter-relationship Between the Electronegativity and Other Periodic Parameters	p. 21
Conclusion	p. 22
Acknowledgment	p. 22
Keywords	p. 23
The Time Evolution of the Electronegativity Part-2: Applications	p. 24
Introduction	p. 24
The Electronegativity Equalization Principle	p. 25
Justification of the Reaction Surface in Terms of Electronegativity	p. 28
Electronegativity and Molecular Orbital Theory	p. 28
The Dipole Charge and Dipole Moment in Terms of Electronegativity	p. 29
Computation of Bond Moment	p. 31
Computation of Hetero Polar Bond Length in Terms of Electronegativity	p. 33
Atomic Polar Tensor	p. 34
Bond Stretching Frequency and Force Constant	p. 35
Standard Enthalpies of Formation and Bond Dissociation Energy	p. 36
Stability Ratio	p. 38
Lewis Acid Strength	p. 39
Electronegativity and the Work Function	p. 40
Calculation of Other Periodic Parameters	p. 40
Electronegativity and the HSAB Principle	p. 42
The Concept of Group Electronegativity	p. 44
Some Other Applications of Electronegativity	p. 45
Conclusion	p. 47
Acknowledgments	p. 47
Keywords	p. 47
Starch Nanocomposite and Nanoparticles: Biomedical Applications	p. 48
Introduction	p. 48
Starch	p. 50
Starch Nanocomposites	p. 60
Synthesis and Characterization of New Electrorheological Fluids by Carboxymethyl Starch Nanocomposites	p. 72
Keywords	p. 73
Updates on Lamination of Nanofiber	p. 74
Introduction	p. 74
Experimental	p. 76
Results and Discussion	p. 77
Conclusion	p. 81
Acknowledgment	p. 81
Keywords	p. 81
Electrospinning of Chitosan (CHT)	p. 82
Introduction	p. 82
Experimental	p. 84
Results and Discussion	p. 86
Conclusion	p. 94
Acknowledgment	p. 94
Keywords	p. 94
Smart Nanofiber Based on Nylon 6,6/Polyethylene Glycol Blend	p. 95
Introduction	p. 95
Experimental	p. 96
Results and Discussion	p. 97
Conclusion	p. 103
Keywords	p. 103
Recent Advances of Carbon Nanotube/Biopolymers Nanocomposites: A Technical Review	p. 104
Introduction	p. 104
Biopolymers	p. 104
Carbon Nanotubes	p. 107
Chitosan/Carbon Nanotube Composites	p. 113
Conclusion	p. 119
Keywords	p. 119
Polypyrrole Coated Polyacrilonitril Electrospun Nanofibers	p. 120
Introduction	p. 120
Experimental and Methods	p. 121
Results and Discussion	p. 121
Conclusion	p. 123
Keywords	p. 123
Semi-empirical AM-1 Studies on Porphyrin	p. 124
Introduction	p. 124
The Global Reactivity Parameters	p. 126
The Local Reactivity Parameters	p. 127
The Atomic Charge	p. 128
Method of Computation	p. 130
Conclusion	p. 335
Keywords	p. 136
References	p. 137
Index	p. 162
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Modern Trends in Chemistry and Chemical Engineering

Modern Trends in Chemistry and Chemical Engineering

1926895002

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