Last edited by Vukinos
Sunday, November 15, 2020 | History

2 edition of Molecular mobility in polymer systems found in the catalog.

Molecular mobility in polymer systems

Europhysics Conference on Macromolecular Physics (12th 1981 Leipzig, Germany)

Molecular mobility in polymer systems

12th Europhysics Conference on Macromolecular Physics, September 21-26, 1981, Leipzig

by Europhysics Conference on Macromolecular Physics (12th 1981 Leipzig, Germany)

  • 26 Want to read
  • 7 Currently reading

Published by European Physical Society in [Geneva] .
Written in English

    Subjects:
  • Polymers -- Congresses.

  • Edition Notes

    Includes bibliographical references and index.

    Statementsponsored by European Physical Society, Physical Society of the German Democratic Republic, Department of Physics of the Karl-Marx-University ; vol. ed. H.-K. Roth.
    SeriesEurophysics conference abstracts ;, v. 5I
    ContributionsRoth, H.-K., European Physical Society., Physikalische Gesellschaft der DDR., Karl-Marx Universität Leipzig. Sektion Physik.
    Classifications
    LC ClassificationsQD380 .E9 1981
    The Physical Object
    Paginationix, 366 p. :
    Number of Pages366
    ID Numbers
    Open LibraryOL3031207M
    LC Control Number82118513

    Polymer Translocation discusses universal features of polymer translocations and summarizes the key concepts of polyelectrolyte structures, electrolyte solutions, ionic flow, mobility of charged macromolecules, polymer capture by pores, and threading of macromolecules through pores. With approximately illustrations and equations, the book. This book considers the raw materials used to build the polyurethane polymeric architecture. It covers the chemistry and technology of oligo-polyol fabrication, the characteristics of the various oligo-polyol families and the effects of the oligo-polyol structure on the properties of .   Book Chapters. Khabaz, F.; Islam, R.; Khare, R.; “Thermal Conductivity of Polymer Nanocomposites: Applications of Molecular Dynamics Simulations”, in press. “Effect of chain flexibility and interlayer interactions on the dynamics of layered polymer systems”, Macromolecules, 51, “Glass Transition and Molecular Mobility. the probability for the individual polymer chains to entangle with each other in dilute solutions is small. As the concentration increases and the effective distance between the individual polymer chains become smaller, such interchain interactions become more and more significant. As a result, aggregation of polymer chains becomes more feasible.

    It is challenging to afford efficient and stable organic solar cells based on an as-cast active layer without any external treatments. We present a planar organic electron acceptor, BPTCN, with high electron mobility as a third component in nonfullerene ternary polymer solar cells, which comprises an electron-deficient 4,7-bis(5H-4,6-dioxothieno[3,4-c]pyrrol-1 .


Share this book
You might also like
Factors affecting the social acceptance of students in inclusive elementary classroom

Factors affecting the social acceptance of students in inclusive elementary classroom

Homer and the sea

Homer and the sea

TALIS 2001/2.

TALIS 2001/2.

wood engravings of Robert Gibbings

wood engravings of Robert Gibbings

Bank note reporters and counterfeit detectors, 1826-1866

Bank note reporters and counterfeit detectors, 1826-1866

Mutual aid

Mutual aid

How We Used to Live

How We Used to Live

The ninth circle

The ninth circle

Hydrolyzed Wood Slurry Flow Modeling

Hydrolyzed Wood Slurry Flow Modeling

Charles Haywards Carpentry book.

Charles Haywards Carpentry book.

Footsteps of Japanese Buddhism.

Footsteps of Japanese Buddhism.

One step forward, two steps back

One step forward, two steps back

Central area

Central area

Welcome to the New Tax-Free Economy

Welcome to the New Tax-Free Economy

Learn With Tom Kitten

Learn With Tom Kitten

Molecular mobility in polymer systems by Europhysics Conference on Macromolecular Physics (12th 1981 Leipzig, Germany) Download PDF EPUB FB2

Williams, in Encyclopedia of Materials: Science and Technology, 6 Reactive Systems. Changes in molecular mobility and ionic mobility during bulk thermo- and photopolymerizing reactions can be monitored using real-time DRS. Following the Molecular mobility in polymer systems book of Senturia and Sheppard () and Kranbuehl () many studies have been made by several groups (see the.

The mobility of the polymer chains depends on many parameters: the structure of the molecules (chemical bonds), branching of chains, molecular weight.

УДК,ISBN 8th International Symposium “Molecular Order and Mobility in Polymer Systems” BOOK OF ABSTRACTS. Saint-Petersburg, - рp. INTERNATIONAL SCIENTIFIC ADVISORY BOARD K.

Binder, Germany T.M. Birshtein, Russia. Get this from a library. Molecular mobility and order in polymer systems: selected contributions from the conference in St. Petersburg (Russia), June[Anatoly A Darinskii;].

Polymer-Solvent Molecular Compounds gives a detailed description of these promising systems. The first chapter is devoted to the presentation of important investigational techniques and some theoretical approaches. The second chapter is devoted to biopolymers, the first polymers known to produce molecular compounds, chiefly with water.

Intrinsic Molecular Mobility and Toughness of Polymers I. Editors; Hans-Henning Kausch; Book. 70 Citations; k Downloads; Part of the Advances in Polymer Science book series (POLYMER, volume ) Chapters Table of contents (3 chapters) About About this book; Table of contents.

Search within book. Front Matter. PDF. The Effect of Time Molecular mobility in polymer systems book. This book contains most of the contributions from the 3rd International Symposium on "Molecular Mobility and Order in Polymer Systems".

Two chapters are containing lectures considering the problems "Mobility - Structure- Order" and "Structure - Order - Properties". Book, Internet Resource: All Authors / Contributors: T M Birshtein. Find more information about: ISBN: OCLC Number: 4th International Symposium "Molecular Order and Mobility in Polymer Systems." Molecular order and mobility in polymer systems: Responsibility: symposium editor, T.M.

Birshtein. Reviews. "Molecular Order and Mobility in Polymer Systems" was held in Saint-Petersburg, Russia, of June It was a con-tinuation of the series of Symposia orga-nized by the Institute of Macromolecular Compounds of RAS.

The cover is taken from the manuscript by A. Polotsky et. 24 and shows a polyelectrolyte star. The International Symposium "Molecular Order and Mobility in Polymer Systems" was the fourth one in the series of similar St.-Petersburg IUPAC meetings on macromolecules held in, andand organized by the institute of Macromolecular Compounds of the Russian Academy of Scientists (RAS).

Although the occurrence of intracellular glasses in seeds and pollen has been established, physical properties such as rotational correlation times and viscosity have not been studied extensively.

Using electron paramagnetic resonance spectroscopy, we examined changes in the molecular mobility of the hydrophilic nitroxide spin probe 3-carboxy-proxyl during melting Cited by:   Using the NMR method the authors have investigated thermal molecular movement in polymers under the conditions of fatigue tests.

They have found that the increase in molecular mobility under cyclic loading (cycle frequency 1–10 Hz) is due only to general self-heating of the polymer. Heating of the specimens as a result of hysteresis heat release takes Cited by: 1. A novel concept of screw design has been proposed considering the multi-field synergy principle to facilitate phase-to-phase thermal and molecular mobility; subsequently, a torsion element has been designed.

This new screw design allows an innovative and effective way to resolve a growing challenge in polymer process engineering, especially for nanocomposites or. Stereodynamics of Molecular Systems covers the proceedings of a symposium held at the State University of New York at Albany, on April The book focuses on the stereodynamics of molecules and ions and nucleic acid structure.

The contributions tackle spectroscopy, crystallography, perturbations, and electron-transfer Edition: 1.

Despite the glassy regime, the bulk plastic deformation triggered the requisite molecular mobility of the polymer chains, causing interpenetration across the interfaces held in contact. This book is the first to deal with the important topic of the fire behaviour of fibre reinforced polymer composite materials.

Composites are used in almost every conceivable application, although the high flammability and poor fire resistance of these materials remains a critical issue. Free Volume, Molecular Mobility and Polymer Structure: Towards the Rational Design of Multi-Functional Materials systems due to irregular packing, density uctuations and eerF olume,V Molecular Mobility and Polymer Structure for example, it is.

@article{osti_, title = {A molecular dynamics study of polymer/graphene interfacial systems}, author = {Rissanou, Anastassia N. and Harmandaris, Vagelis}, abstractNote = {Graphene based polymer nanocomposites are hybrid materials with a very broad range of technological applications.

In this work, we study three hybrid polymer/graphene interfacial. Haugstad, GD, Schmidt, RH, Hammerschmidt, JA, Dykstra, C, Tan, S & Gladfelter, WLConfinement effects and the activation of molecular motion in polymer thin films at a moving nanoprobe. in ACS National Meeting Book of Abstracts.

1 edn, vol. th ACS National Meeting Abstracts of Papers, Anaheim, CA., United States, 3/28/Author: Greg D. Haugstad, Ronald H. Schmidt, Jon A. Hammerschmidt, Craig Dykstra, Susheng Tan, Wayne L. Glad. Synthesis and dynamic nature of molecular and macromolecular systems controlled by rotaxane molecular switches are discussed.

Rotaxane molecular and macromolecular switches including those working without solvent were synthesized mainly using sec-ammonium salt/crown ether couples.A linear polymer possessing a crown ether/sec-ammonium salt-type [1]rotaxane.

Now the polymer molecules easily change their shape under a force. The polymer is flexible now. On the other hand, at low temperature the rotation time can be as high as 1 million seconds. The polymer behaves as a rigid (stiff) solid now. We humans experience the polymer as flexible when the rotation time is less than 1 second.

Solid-state nuclear magnetic resonance (NMR) has long emerged as a valuable technique for characterizing the molecular structure, conformation, and dynamics of polymer chains in various polymer systems. The principles of the solid-state 13C NMR cross-polarization experiment are described along with corresponding relaxation measurements.

The ensuing recent Author: Antonio Martínez-Richa, Regan L. Silvestri. • Onset of molecular mobility at T g involves rotation of chain segments (comprised of ~ repeat units) about the main chain.

Such cooperative motion requires – #1 sufficient thermal energy (kT relative to ΔV(φ)) for ease of rotation about main chain bonds and to overcome local bonding – #2 sufficient V F for the segments to move Size: KB.

In general, the relaxation of polymers from a nonequilibrium state will occur only if the polymer is above the bulk glass temperature. To examine the influence of a free surface on the mobility of polymer chains, the free surface of thick, artificially roughened polystyrene (PS) films (>10 μm) was studied.

Each surface asperity of the PS film represents a nonequilibrium system with a. The molecular mobility related to the glass transition and secondary relaxations in a hyperbranched polyethyleneimine, HBPEI, and its relaxation behaviour when incorporated into an epoxy resin matrix are investigated by dielectric relaxation spectroscopy (DRS) and dynamic mechanical analysis (DMA).

Three systems are analysed: HBPEI, epoxy and an epoxy/HBPEI Cited by: 7. Molecular Mobility of Peroxy Radicals at the Ends of Nonisolated Polystyrene Chains Tethered on the Solid Surface of Poly(tetrafluoroethylene) in a Vacuum.

Macromolecules41 (1), Cited by: The conclusion summarizes the presented principles of structure-mobility correlations and refers to the numerous further examples in nature and technology, some of which - see e.g.

the contributions by Fritzsche et al., Bräuer et al., Freude et al., Kremer et al., Michel et al., and Arnold et al.

- may be found in further chapters of the book. This chapter introduces the basics of polymer science, including classification of polymers, polymer structure, molecular weight, chemical structure, and thermal transitions.

This chapter is from the book. Since sufficient thermal energy is needed to provide the necessary molecular mobility for the chain-folding process.

Thermal expansion, free volume, and molecular mobility in a carbon black-filled elastomer The near invariability of T g and of the rubbery fected by adsorption of polymer segments on the carbon Youping Wu, Liqun Zhang, Influence of various nanoparticle shapes on the interfacial chain mobility: a molecular dynamics simulation, Phys.

Chem. mobility of polymers at the polymer/air interface. Arti-ficially rough model surfaces were used to investigate the surface tension driven decay of polymer surface asperities. The flattening of a liquid surface driven by the Laplace pressure is a well-studied phenomenon for the case of fully liquid systems,30 Orchard et al.

Edited by foremost leaders in chemical research together with a number of distinguished international authors, this first of four volumes summarizes the most important and promising recent chemical developments in energy science all in one book. Interdisciplinary and application-oriented, this ready reference focuses on chemical methods that deliver practical solutions for.

Issues of movement – of people, things, information and ideas – are central to peoples lives and to most organisations. From oil wars to SMS texting, from airport expansion controversies to the decline of walking, from slave-trading to global terrorism, from global warming to teleworking, issues of ‘mobility’ are centre-stage upon many academic and policy agendas.

Author: John Urry. Structure, molecular mobility and properties of polypropylene block copolymers. Almudena Fernández, Rafael A. García, Baudilio Coto, Inmaculada Suarez, M.

Teresa Expósito Rey Juan Carlos University (Spain) Isotactic polypropylene (iPP) shows properties similar to those of high density polyethylene (HDPE). Theory and mechanism. Reptation theory describes the effect of polymer chain entanglements on the relationship between molecular mass and chain relaxation time (or similarly, the polymer’s zero-shear viscosity).The theory predicts that, in entangled systems, the relaxation time τ is proportional to the cube of molecular mass, M: τ ~ M is a reasonable approximation of.

@article{osti_, title = {Inherent structure energy is a good indicator of molecular mobility in glasses}, author = {Helfferich, Julian and Lyubimov, Ivan and Reid, Daniel and de Pablo, Juan J.}, abstractNote = {Glasses produced via physical vapor deposition can display greater kinetic stability and lower enthalpy than glasses prepared by liquid cooling.

Recently, it has been shown that the reaction mechanism in self-healing diphenyl dichalcogenide-based polymers involves the formation of sulfenyl and selenyl radicals. These radicals are able to attack a neighbouring dichalcogenide bond via a three-membered transition state, leading to the interchange of chalcogen atoms.

Hence, the chain mobility is crucial for the exchange reaction Cited by: 1. While the hole mobility (measured in field-effect transistors of the blend) decreased by less than an order of magnitude from the pure polymer phase to 80% PC 71 BM, the electron mobility decreases by more than an order of magnitude from toand then becomes immeasurable for lower PCBM ratios.

The low mobility at the ratio accounts. Clemson University | College of Engineering, Computing and Applied Sciences | Materials Science & Engineering Prof.

Marek W. Urban, A Sirrine Hall, Clemson, SC | Phone: () /| Advanced Materials Research Labs| E-mail: [email protected] While polymer electrolytes hold the promise of improving safety and mechanical durability of electrochemical devices, most suffer from relatively low ionic conductivities especially at ambient temperature.

Furthermore, much of the conductivity in polymer electrolytes stems from the mobile anions, rather than Charge Transporting Nanostructured Polymers for Electrochemical Systems. This book was first published in Polymers exhibit a range of physical characteristics, from rubber-like elasticity to the glassy state.

These particular properties are controlled at the molecular level by the mobility of the structural cturer: Cambridge University Press. Search term. Advanced Search Citation Search. Search. The Role of Molecular Structure and Conformation in Polymer Opto-Electronics 1. The role of molecular structure and conformation in polymer opto-electronics Charge separation: Molecular structure Enrico Da Como 2.

Conjugated polymers polythiophene 3.Layered polymeric systems are widely used in membrane separation applications; chain mobility in these layered systems is a key consideration in the design of the membranes. The transport properties of membrane polymers can be significantly altered by the perturbations in chain dynamics induced by the presence of an interface and also by the topological properties of the Cited by: 3.