This topic is presented in Chapters 10 and 11. Macromolecules are not always the final goal of the chemist-they may act as intermediates, reactants, or catalysts. More-detailed considerations are given to certain particularly important and critical properties such as the solubility and permeability of polymeric systems. Chapters 4 through 9 describe how such properties are rooted in and dependent on the chemical structure. 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. The following chapters go into more detail. 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 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 first chapter is devoted to this broad objective.
#TRANSLUCENT CELLS CONTAINING KERATIN FIBRILS SKIN#
What is dust made of Mostly dead skin cells. dermal layer responsible for fingerprints 4. Various cells are embedded in a matrix containing fibers and amorphous ground. 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. What skin area has translucent cells containing keratin fibrils in thick skin stratum lucidum. translucent cells in thick skin containing keratin fibrils 2. of a basal layer of cuboidal to columnar cells, the stratum basale. 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.
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