The mesoscopic theory of polymer dynamics
- 作者: Pokrovskii, Vladimir N.
- 出版: Dordrecht ;Boston : Kluwer Academic ©2002.
- 稽核項: 1 online resource (xiii, 231 pages) :illustrations.
- 標題: Solutions de polymère. , SCIENCE , viscoelasticity. , SCIENCE Chemistry -- Physical & Theoretical. , Viscoélasticité. , Polymer solutions. , Electronic books. , ChemistryPhysical & Theoretical. , Viscoelasticity.
- ISBN: 0306471302 , 9780306471308
- 試查全文@TNUA:
- 附註: Includes bibliographical references (pages 215-228) and index.
- 摘要: This monograph contains the fundamentals of the theory and gives a compact and consistent picture of the different relaxation phenomena in very concentrated solutions and melts of linear polymers (diffusion, neutron scattering, viscoelasticity, and optical birefringence) from a macromolecular point of view and without any specific hypotheses. It can be considered as complementary reading to the classic textbook by Doi and Edwards. The original approach taken to the problem allows us to understand why numerous attempts to find the 3.4-index law for the viscosity coefficient of linear polymers in the frame of the reptation-tube model were doomed to fail, and have failed during the last twenty years. It also helps us to derive the proper constitutive relation for polymers of different architecture. The monograph can be used as a textbook for graduate students with some background in physics and mathematics. It could provide material for a one- or two-semester graduate- level course in polymer dynamics. The monograph presents topics in a self-contained way that makes it a suitable reference book for professional researchers in the fields of rheology, polymer science, polymer engineering, and material science.
- 電子資源: https://dbs.tnua.edu.tw/login?url=https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&AN=70127
- 系統號: 005298502
- 資料類型: 電子書
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Our brutal century of atom bombs and spaceships can also be called the century ofpolymers. In any case, the broad spreading ofsynthetic polymer materials is one of thesigns of our time. A look at the various aspects of our life is enough to convince us that polymeric materials (textiles, pl- tics, rubbers) are as widely spread and important in our life as are other materials (metals and non-metals) derived from small molecules. Polymers have entered the life of the twentieth century as irreplaceable construction materials. Polymers differ from other substances by the size of their molecules which, appropriately enough, are referred to as macromolecules, since they consist of thousands or tens of thousands of atoms (molecular weight up to -4 6 10 ormore) andhave a macroscopic rectilinear length (upto 10 cm). The atoms ofa macromolecule are firmly held together by valence bonds, fo- ing a single entity. In polymeric substances, the weaker van der Waals forces have an effect on the components of the macromolecules which form the system. The structure of polymeric systems is more complicated than that oflow-molecular solids or liquids, but there are some common features: the atoms within a given macromolecule are ordered, but the centres ofmass of the individual macromolecules and parts of them are distributed randomly. Remarkably, the mechanical response of polymeric systems combines the elasticity of a solid with the fluidity of a liquid.
來源: Google Book
來源: Google Book
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