Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, 1995

Presented at the 1995 Joint Asme Applied Mechanics and Materia (AMD) by Mehrdad Negahban

Publisher: American Society of Mechanical Engineers

Written in English
Cover of: Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, 1995 | Mehrdad Negahban
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Subjects:

  • Materials science,
  • Material Science,
  • Technology & Industrial Arts
The Physical Object
FormatHardcover
Number of Pages184
ID Numbers
Open LibraryOL7804425M
ISBN 100791813185
ISBN 109780791813188

Sorption thermodynamics of water in two glassy polymers, polyetherimide (PEI) and polyetheretherketone (PEEK), is investigated by coupling gravimetry and on line FTIR spectroscopy in order to gather information on the total amount of sorbed water as well as on the different species of water molecules absorbed within the polymers, addressing the issue of cross- and self-interactions Cited by: 4.   Although the research was conducted with PEDOT, Ugur says, the findings “should be generalizable to all conjugated polymers.” (Polymers’ structures consist of long chains; conjugated polymers are those that have at least one “backbone” consisting of alternating double and single chemical bonds, making them conductive). Nicolet iS50 Polymers video Powerful New Identification Tools with OMNIC Specta Software technical note Identify the best product fit with the Product Selection Guide. Modelling thermorheologically complex phenomena in the post-yield response of glassy polymers Lambert C.A. van Breemen, Tom A.P. Engels, Leon E. Govaert and Han E.H. Meijer Materials Technology (MaTe), Eindhoven University of Technology, WH , PO box , MB Eindhoven, The Netherlands, [email protected]

Commercially available shape memory polymer (SMP) Estane (designation: ETE75DT3 NAT) is investigated by means of dynamic mechanical thermal analysis (DMTA) technique in torsion mode using the Modular Compact Rheometer MCR (Anton Paar GmbH). Amplitude sweep tests have been run below and above the glass transition temperature to establish the linear viscoelastic range (LVR) in Cited by: 9. Measure directly using single-bounce Diamond, ZnSe or Ge* ATR; May require cutting away top surface to expose interior *Ge for carbon-filled polymers.   Sorption thermodynamics of water in two glassy polymers, polyetherimide (PEI) and polyetheretherketone (PEEK), is investigated by coupling gravimetry and on line FTIR spectroscopy in order to gather information on the total amount of sorbed water as well as on the different species of water molecules absorbed within the polymers, addressing the issue of cross- and self-interactions Cited by: 4. Self-healing polymers have a wide range of uses, from paints to impact resistant coatings for mobile devices. Now researchers from the universities of Reading and Oxford have developed an adhesive and elastic polymer that repairs itself at body temperature, which could find use in biomedicine.

Introduction. The glass transition of a liquid to a solid-like state may occur with either cooling or compression. The transition comprises a smooth increase in the viscosity of a material by as much as 17 orders of magnitude within a temperature range of K without any pronounced change in material structure. The consequence of this dramatic increase is a glass exhibiting solid-like. Selected studies on the thermal and mechanical responses of amorphous glassy polymers at different length scales. Emmett D., "Selected studies on the thermal and mechanical responses of amorphous glassy polymers at different length scales." ().Doctoral Dissertations rangefromintrinsicproperties Author: Emmett Dudley Crawford.

Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, 1995 by Mehrdad Negahban Download PDF EPUB FB2

Get this from a library. Current research in the thermo-mechanics of polymers in the rubbery-glassy range, presented at the Joint ASME Applied Mechanics and Materials Summer Meeting, Los Angeles, California, June[Mehrdad Negahban; American Society of Mechanical Engineers.

Applied Mechanics Division.;]. Current research in the thermo-mechanics of polymers in the rubbery-glassy range, presented at the Joint ASME Applied Mechanics and Materials Summer Meeting.

Morman, Morman, K.N., A thermomechanical model for amorphous polymers in 1995 book glassy, transition, and rubber regions. AMD-vol. Current research in the thermo-mechanics of polymers in the rubbery-glassy range. ASMECited by: In: Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, AMD-vol.

ASME, New York. Fully coupled thermo-mechanical micromechanics modelAuthor: Jacob Aboudi. Abstract. This article reviews recent developments in polymer thermomechanics both in theory and experiment. The first section is concerned with theories of thermomechanics of polymers both in rubbery and solid (glassy and crystalline) states with special emphasis on relationships following from the thermomechanical equations of by: Bushko, W.

C., and Stokes, V. K., c, “The Effects of Boundary Conditions on the Shrinkage and Residual Stresses in Injection-Molded Parts,” in Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, M. Negahban, ed., AMD-Vol.American Society of Mechanical Engineers, New York, pp.

–(to appear in Polymer Engineering and Science).Cited by: R.J. Young, in Encyclopedia of Materials: Science and Technology, 7 Conclusions. Glassy polymers are generally thought to be rather brittle solids but it has been shown that under many circumstances they are capable of undergoing considerable levels of plastic deformation.

Even though they do not have well-defined arrangements of atoms or molecules in their microstructure, there has. Modelling Damage, Fatigue and Failure of Composite Materials provides the latest research on the field of composite materials, an area that has attracted a wealth of research, with significant interest in the areas of damage, fatigue, and failure.

The book is a comprehensive source of physics-based models for the analysis of progressive and critical failure phenomena in composite materials. Morman, K.N. []: A thermo-mechanical model for amorphous polymers in the glassy, transition, and rubbery regions, Recent Research in Thermo-mechanics of Polymers in The Rubbery-Glassy Range (M.

Negahban, ed.) ASME AMD Cited by: 9. Cyclic Viscoplastic-Viscodamage Analysis of Shape Memory Polymers Fibers With Application to Self-Healing Smart Materials Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, ASME, New York. Shojaei, by: Arrhenius-type temperature dependence of the segmental relaxation below T g.

Chem. Phys.Time–Temperature and Time-Aging Time Superposition in Polycarbonate,” in Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, edited by M. Negahban (American Society of Mechanical Engineers, New York, Cited by:   Thermal conductivity is an important property for polymers, as it often affects product reliability (for example, electronics packaging), functionality (for example, thermal interface materials Cited by: M Negahbany, \A thermodynamic theory for characterizing thermo-mechanical response of polymers during crystallization," ASME AMD-Vol.: Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range,().

M Negahbany, \Preliminary results on an e ort to characterize the thermo-mechanical response of amorphous polymers in the glass. High‐performance thermosets: Chemistry, Properties, Applications, by Shiow‐Ching Lin and Eli M.

Pearce, Hanser publishers, Munich,pp. Effect of Temperature on the Mechanical Properties of Polymer Mortars The relationships between the test temperature and flexural strength of both formulations of polymer mortar are presented in Figures 4 and 5.

According to Figure 4, between room temperature and 50 °C, only a loss in the ultimate flexural strength is observed.

Chadwick, P., ‘Thermo-mechanics of rubberlike materials’, Philosophical Transactions of the Royal Society of London, Series A, – zbMATH ADS Google Scholar Chadwick, P. and Creasy, C.F.M., ‘Modified entropic elasticity of rubberlike materials’, Journal of the Mechanics and Physics of Sol– zbMATH Cited by: This Third Edition of the classic, best-selling polymer science textbook surveys theory and practice of all major phases of polymer science, engineering, and technology, including polymerization, solution theory, fractionation and molecular-weight measurement, solid-state properties, structure-property relationships, and the preparation, fabrication and properties of commercially-important.

Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, ASME, pages M. Negahban, \A thermodynamic theory for characterizing thermo-mechanical response of polymers during crystallization," AMD-Vol.

Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, ASME, pages M. Mechanical)Properties)of) Polymers) Kamyar)Davoudi) October, Materials)Science)SeminarFile Size: 2MB. Presents a solid introduction to thermal analysis, methods, instrumentation, calibration, and application along with the necessary theoretical background.

Useful to chemists, physicists, materials scientists, and engineers who are new to thermal analysis techniques, and to existing users of thermal analysis who wish expand their experience to new techniques and applications Topics covered.

crystallization,” AMD-Vol. Current Research in the Thermo-Mechanics of Polymers in the Rubbery-Glassy Range, ASME, pages M. Negahban, “Preliminary results on an effort to characterize the thermo-mechanical response of amorphous polymers in the glass-transition range,” MD-Vol.

68/AMD-Vol. Mechanics of Plastics and Plastic Composites, ASME. Finite Thermoelasticity of Constrained Elastomers Subject to Biaxial Loading 1 2 J.D. HUMPHREY and K.R. RAJAGOPAL Biomedical Engineering Program, Texas A&M University, College Station, TXU.S.A.

Department of Mechanical Engineering, Texas A&M University, College Station, TXU.S.A. Received 14 November ; in revised form “A Thermo-mechanically-coupled Large-deformation Theory for Amorphous Polymers in a Temperature Range Which Spans Their Glass Transition.” International Journal of Plasticity (): Cited by: The papers represent the research results which are oriented on materials and chemical technologies and cover a broad range of related disciplines: development of composites and biodegradable polymers materials, the study on properties of organic semiconductors and building materials, etc.

Thermoresponsive polymers that undergo reversible phase transition by responding to an environmental temperature change, in particular polymers showing lower critical solution temperature (LCST), are frequently used as smart materials that have found increasing applications.

Recently, there has been a rapid Focus article collectionCited by:   The glassy polymers exhibit plastic yielding in compression. The dependence of compressive yield strength on factors such as tensile modulus, glass transition temperature, density, and free volume has been examined.

Failure theories for yielding in glassy polymers have been by: This volume represents a continuation of the Polymer Science and Technology series edited by Dr. Brewis and Professor D.

Briggs. The theme of the series is the production of a number of stand alone volumes on various areas of polymer science and : Hardcover. Thermal studies of conducting electroactive polymers Reza Ansari University of Wollongong Research Online is the open access institutional repository for the University of Wollongong.

For further information contact the UOW Library: [email protected] Recommended Citation. A theory of tensile strength, based on the observation of cracks in specimens strained to breaking, is formulated.

The treatment involves the assumption that a crack grows to a critical size by a nucleation. Spanning a broad range of technology applications, precision engineering principles frequently bring together scientific ideas drawn from mechanics, materials, optics, electronics, control, thermo-mechanics, dynamics, and software engineering.

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Books. Sciendo can meet all publishing needs for authors of academic and.Morman, K.N. []: A thermo-mechanical model for amorphous polymers in the glassy, transition, and rubbery regions, Recent Research in Thermo-mechanics of Polymers in The Rubbery-Glassy Range (M. Negahban, ed.) ASME AMD   Morman, K.N.

[]: A thermo-mechanical model for amorphous polymers in the glassy, transition, and rubbery regions, Recent Research in Thermo-mechanics of Polymers in The Rubbery-Glassy Range (M. Negahban, ed.) ASME AMD