3 edition of Relaxation in polymers found in the catalog.
Relaxation in polymers
|Statement||guest editors, M. Pietralla and W. Pechhold.|
|Series||Progress in colloid & polymer science -- vol. 80 (1989), Progress in colloid & polymer science -- vol. 80.|
|Contributions||Pietralla, M., Pechhold, W., International Seminar on Polymer Physics (6th : 1989 : Gomadingen, Germany)|
|The Physical Object|
|Pagination||276 p. :|
|Number of Pages||276|
The authors describe the electric, magnetic and other relaxational processes in a wide spectrum of materials: liquid crystals, molecular magnets, polymers, high-Tc superconductors and glasses. The book summarizes the phenomenological fundamentals and the experimental methods used. A. Characteristic relaxation times and their invariance to thermodynamic conditions C. M. Roland* DOI: /bd The dynamics of molecular liquids and polymers exhibit various ‘‘transitions’’, associated with characteristic changes in properties. With decreasing temperature or increasing pressure.
Dear Colleagues, Since their early days, Nuclear Magnetic Resonance (NMR) and Polymer Science have had a strong and enduring liaison. Many times, the discovery of a new class of polymers required the development of new NMR techniques or the set-up of new interpretative paradigms, as in the case of the precise determination of the polymer tacticity. The volume concludes with discussion of semi-crystalline polymers and miscible polymer blends, including the models for miscible blend dynamics. Two appendices describe the Rouse model and site models for localized relaxation." Book News, : Richard Boyd, Grant Smith.
In polymer science and technology, the advanced development of various new polymer materials with excellent properties and functions is desirable. For this purpose it is necesary to determine the exact relationship between physical properties and molecular structure-dynamics with powerful techniques. One such technique is solid state NMR. Shear relaxation moduli G(t, s) were measured for various strains s with a relaxometer of the cone-plate type for concentrated solutions of polystyrene in chlorinated biphenyl. The strain was Cited by:
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Relaxation in Polymers (Progress in Colloid and Polymer Science (80)) Softcover reprint of the original 1st ed. Edition by M. Pietralla (Editor). Molecular motion and orientational distribution in polymer electrets as detected by nuclear magnetic resonance and relaxation.
Pages Geschke, D. (et al.). Polymer Relaxation (Polymer Science and Technology) UK ed. Edition. by Peter J. Graham (Author) ISBN ISBN Why is ISBN important. ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book.
Author: Peter J. Graham. Interrelation of phase and relaxation behavior in polymer blends and block copolymers with crystallizable components Yu. Shibanov, Yu. Godovsky Pages Its role in the physical and mechanical behavior of polymers materials and fundamentals of thermoplastics processing are discussed.
Four appendixes detail thermo-mechanical methods to study relaxation in polymers, structure of both amorphous and semi-crystalline polymers, and unified approach to describe deformation of polymeric materials.
This book connects the physics of polymer molecules to engineering applications. Ideas of intermolecular cooperativity, irreversible thermodynamics, relaxation mode coupling, free energy of stress invariants, and viscoplasticity are Range: $ - $ Relaxation Phenomena in Polymers Edited by Shiro Matsuoka With Illustrations h Hanser Publishers, Munich Vienna New York Barcelona Distributed in the United States of.
Physical properties of polymers include molecular weight, molar volume, density, degree of polymerization, crystallinity of material, and so on. Some of these are. discussedherewithinthefollowingsections. A Degree of Polymerization and Molecular Weight.
Firstofall,letusdiscussthedegree of reeofpolymerization. Stress relaxation is a time-dependent decrease in stress under a constant strain. This characteristic behavior of the polymer is studied by applying a fixed amount of deformation to a specimen and measuring the load required to maintain it as a function of time.
Stress-relaxation data have been useful in many practical applications. The amount of relaxation which takes place is a function of time, temperature and stress level, thus the actual effect it has on the system is not precisely known, but can be bounded. Stress relaxation describes how polymers relieve stress under constant strain.
Because they are viscoelastic, polymers behave in a nonlinear, non-Hookean fashion. Viscoelastic relaxation in amorphous bulk polymers.- Small-angle neutron scattering investigation of phase separation kinetics of a diblock copolymer.- The role of diffusion of free volume at volume relaxation of amorphous polymers.- Dynamics of density fluctuations in glass forming liquids and polymers as measured by light scattering The shaft-hole coupling test (SHCT) characterizes the stress relaxation mechanics of polymers through measurements of the decrease in the stress between a metallic shaft and a drilled polymeric.
Book Description. Explores the nature of relaxation phenomena in polymers on the basis of time-temperature equivalence.
Its role in the physical and mechanical behavior of polymers materials and fundamentals of thermoplastics processing are discussed. Polymer Science: A Materials Science Handbook, Volume 2 focuses on the chemical structures of polymers, as well as the processes of friction and wear, adhesion, radiation, spectroscopy, and nuclear magnetic resonance.
and interfacial and cohesive failure. The book also reviews polymer solutions and fractionation, polyelectrolytes, and. List of synthetic polymers by Synthetic polymers are human-made polymers derived from petroleum oil. This guide explains about the eight most common types of synthetic organic polymers, which are commonly found in households are: Low-density polyethylene, High-density polyethylene, Polypropylene, Polyvinyl chloride, Polystyrene, Nylon, nylon 6, nylon 6,6, Teflon.
This book covers polymerisation and polymers at a basic level, with emphasis on the delineation of the concepts and their relevance in practical terms. Highlighting the attractive features of polymers as engineering materials, it should appeal to those involved in learning and teaching as well as those working in the polymer-related industry.
Complete relaxation of the polymer was not seen for temperatures less than the bulk glass transition temperature. No evidence of enhanced mobility at the free surface was found.
A planar relaxation of the polymer was found in the first nanometer from the free surface, whereas in the first 10 nm, the dominant relaxation was normal to the by: Relaxation in Polymers contains state-of-the-art reviews on: ultrafast responses in various conjugated polymers with large optical nonlinearity; ultrafast relaxation in polysilanes; electronic properties of polysilanes; fast transient photoconductivity studies of polyacetylene and polydiacetylene; evolution of photoexcitations in polyacetylene.
Association and relaxation of supra-macromolecular polymers† Stephen C. Boothroyd, * a David M. Hoyle, a Thomas C. McLeish, b Etienne Munch, c Regis Schach. A revised molecular approach to a classic on viscoelastic behavior Because viscoelasticity affects the properties, appearance, processing, and performance of polymers such as rubber, plastic, and adhesives, a proper utilization of such polymers requires a.
Transitions and relaxations in polymers: American Chemical Society symposium, held at Atlantic City, N.J., Sept., Issues American Chemical Society Interscience Publishers, - Polymers and polymerization - pages.Various molecular motions known to occur in high polymers are described and illustrated in connection with new magnetic resonance relaxation results.
The motions include side-group reorientations, main-chain reorientation and translation and glass-transition. The acoustic parameters of longitudinal and shear wave experiments were interpreted in terms of localized segmental motions of the polymer chain, coherent subchain motion (“Rouse”-like chain modes) and effects of chain by: 7.