Structure—Property Relationships in PolymersThe 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. |
Contents
Chemical Structure of Polymers | 1 |
Physical Structure of Polymers | 19 |
Tests for Properties of Polymers | 31 |
Copyright | |
18 other sections not shown
Other editions - View all
Structure—Property Relationships in Polymers Charles E. Carraher Jr.,R.B. Seymour Limited preview - 2012 |
Structure-Property Relationships in Polymers Charles E Carraher Jr,R B Seymour No preview available - 1984 |
Common terms and phrases
acetate acrylate addition adhesives aliphatic alkalis alkyl amorphous polymers aromatic atactic carbon atoms cellulose CH₂-CH chemical coefficient of linear commercial Compressive strength kPa continuous heat cross-linked crystalline polymer decreases degradation density dielectric diffusion elastomers electric Elongation energy esters ethylene fibers fillers film flexible Flexural strength kPa following repeating unit gases HDPE heat deflection temperature hydrocarbon hydrogen bonding hydroxyl groups Impact strength Izod increases index of refraction intermolecular forces LDPE linear expansion cm/cm liquid Maximum resistance methacrylate modulus molecular weight N/cm of notch nonoxidizing acids nonpolar nylon 66 oxide oxygen pendant groups permeability phenolic physical properties PMMA polyamides polyesters polyethylene polymer chain polymeric materials polyolefins polyphenylene polystyrene polyvinyl chloride presence produced Properties of Polymers PTFE R. B. Seymour repeating unit resins resistance to continuous rubber solubility parameter solvents specific gravity stress structure styrene surface Tensile strength Tensile strength kPa Thermal and physical thermoplastic vinyl viscosity York