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Author: Christopher Brittain Cooper
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Many emerging applications including wearable electronics and e-skins, soft robotics and actuators, and biomaterials, require material platforms with precisely controlled mechanical, electrical, thermal, and optical properties. The practical realization of devices for these applications is often restricted not by the lack of novel designs, but rather by the sparsity of materials with the required properties. Dynamic polymers, which employ both permanent and reversible linkages, offer a promising platform for the design of new materials due to their highly tunable and responsive chemical structures. This dissertation explores structure-property relationships in different dynamic polymer networks with well-defined polymer design and is structured as follows. Chapter 1 introduces the concept of dynamic polymers, provides comparisons to supramolecular polymers and segmented block copolymers, and concludes with emerging applications for these systems. Chapter 2 examines the molecular design rules for spontaneous self-assembly of periodic dynamic polymers into supramolecular nanofibers. Chapter 3 discusses the phenomenon of strain-induced supramolecular structures exhibited by entangled periodic dynamic polymers. Chapter 4 highlights how the clustered nanomorphology exhibited by periodic dynamic polymers can be used to design recyclable underwater adhesives. Chapter 5 explains how immiscible dynamic polymers can be used to achieve autonomous alignment of multilayered soft electronics. Chapter 6 concludes with key observations and on the future outlook of next-generation materials.
Author: Christopher Brittain Cooper
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Many emerging applications including wearable electronics and e-skins, soft robotics and actuators, and biomaterials, require material platforms with precisely controlled mechanical, electrical, thermal, and optical properties. The practical realization of devices for these applications is often restricted not by the lack of novel designs, but rather by the sparsity of materials with the required properties. Dynamic polymers, which employ both permanent and reversible linkages, offer a promising platform for the design of new materials due to their highly tunable and responsive chemical structures. This dissertation explores structure-property relationships in different dynamic polymer networks with well-defined polymer design and is structured as follows. Chapter 1 introduces the concept of dynamic polymers, provides comparisons to supramolecular polymers and segmented block copolymers, and concludes with emerging applications for these systems. Chapter 2 examines the molecular design rules for spontaneous self-assembly of periodic dynamic polymers into supramolecular nanofibers. Chapter 3 discusses the phenomenon of strain-induced supramolecular structures exhibited by entangled periodic dynamic polymers. Chapter 4 highlights how the clustered nanomorphology exhibited by periodic dynamic polymers can be used to design recyclable underwater adhesives. Chapter 5 explains how immiscible dynamic polymers can be used to achieve autonomous alignment of multilayered soft electronics. Chapter 6 concludes with key observations and on the future outlook of next-generation materials.
Author: Charles E. Carraher Jr.
Publisher: Springer Science & Business Media
ISBN: 1468447483
Category : Science
Languages : en
Pages : 234
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Book Description
The first concern of scientists who are interested in synthetic polymers has always been, and still is: How are they synthesized? But right after this comes the question: What have I made, and for what is it good? This leads to the important topic of the structure-property relations to which this book is devoted. Polymers are very large and very complicated systems; their character ization has to begin with the chemical composition, configuration, and con formation of the individual molecule. The first chapter is devoted to this broad objective. The immediate physical consequences, discussed in the second chapter, form the basis for the physical nature of polymers: the supermolecular interactions and arrangements of the individual macromolecules. The third chapter deals with the important question: How are these chemical and physical structures experimentally determined? The existing methods for polymer characterization are enumerated and discussed in this chapter. The following chapters go into more detail. For most applications-textiles, films, molded or extruded objects of all kinds-the mechanical and the thermal behaviors of polymers are of pre ponderant importance, followed by optical and electric properties. Chapters 4 through 9 describe how such properties are rooted in and dependent on the chemical structure. More-detailed considerations are given to certain particularly important and critical properties such as the solubility and permeability of polymeric systems. Macromolecules are not always the final goal of the chemist-they may act as intermediates, reactants, or catalysts. This topic is presented in Chapters 10 and 11.
Author: Michael Taylor
Publisher:
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Category :
Languages : en
Pages :
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Author: Dongkyu Park
Publisher:
ISBN:
Category : Copolymers
Languages : en
Pages : 308
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Author: Willi Schmolke
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Burak Erman
Publisher: Oxford University Press, USA
ISBN: 0195082370
Category : Science
Languages : en
Pages : 385
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Book Description
Rubber elasticity is an important sub-field of polymer science. This book is in many ways a sequel to the authors' previous, more introductory book, Rubberlike Elasticity: A Molecular Primer (Wiley-Interscience, 1988), and will in some respects replace the now classic book by L.R.G. Treloar, The Physics of Rubber Elasticity (Oxford, 1975). The present book has much in common with its predecessor, in particular its strong emphasis on molecular concepts and theories. Similarly, only equilibrium properties are covered in any detail. Though this book treats much of the same subject matter, it is a more comprehensive, more up-to-date, and somewhat more sophisticated treatment.
Author: Katharina Breul
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Willi Schmolke
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Katharina Breul
Publisher:
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Category :
Languages : en
Pages :
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Author: A. Chompff
Publisher: Springer Science & Business Media
ISBN: 1475762100
Category : Technology & Engineering
Languages : en
Pages : 494
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Book Description
For several decades, polymer science has sought to rationalize the mechanical and thermodynamic properties of polymer networks largely within the framework of statistical thermodynamics. Much of this effort has been directed toward the rubbery rather than the glassy state. It is generally assumed that networks possess an av erage composition to which average properties may be assigned; from such a continuum view, a powerful analysis of such properties as modulus, swelling, birefringence and thermoelasticity has emerged. In the years following the rise of polymer characterization (the late 40's and early 50's), many scientists began to study ap parent relations between the properties of linear polymer molecules and the networks obtainable therefrom. This search was also stimu lated by the wide range of applications of polymer networks in com mercial elastomers, thermosets and coatings. Frequently, these data were confidently matched with curves obtained from statisti cally describable models of networks of ghost chains, uniformly distributed in space. More recently, it has become apparent that polymer chains in networks are not as ideal as assumed in the formulation of statis tical models, and there has been a shift in emphasis towards the less than ideal, perturbed and possibly inhomogeneous networks which are more frequently encountered in practice. The continuum approach, however, had to be developed before inhomogeneous systems could be described; the present volume, therefore, contains both views.
