Constitutive Equations for Polymer Solutions Derived from the Bead/Sring Model of Rouse and Zimm PDF Download

Author: A.S. Lodge
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: A. S. Lodge
Publisher:
ISBN:
Category :
Languages : en
Pages : 47

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Constitutive equations are derived for the Rouse/Zimm model without restriction on the number of springs per molecule or on the strength of bead-bread hydrodynamic interaction. The equations are of the same form as the constitutive equations for a network model, but the memory function is determined to within three arbitrary constants. (Author).

Author: Arthur S. Lodge
Publisher:
ISBN:
Category : Polymer solutions
Languages : en
Pages : 41

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Author: Yeen-jing Wu
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 184

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Author: Arthur S. Lodge
Publisher:
ISBN:
Category : Polymer solutions
Languages : en
Pages : 20

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It is shown that the Rouse/Zimm 'bead-spring' model (for the case of one spring per molecule and zero bead-bead hydrodynamic interaction) and the network model (for the case in which all junction loss probabilities are equal and constant) yield constitutive equations which are of the same form and differ only in the interpretations given to constant coefficients; an explanation is given. (Author).

Author: Anil Kumar
Publisher: CRC Press
ISBN: 9780203911891
Category : Technology & Engineering
Languages : en
Pages : 720

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Exploring the characterization, thermodynamics and structural, mechanical, thermal and transport behavior of polymers as melts, solutions and solids, this text covers essential concepts and breakthroughs in reactor design and polymer production and processing. It contains modern theories, end-of-chapter problems and real-world examples for a clear understanding of polymer function and development. Fundamentals of Polymer Engineering, Second Edition provides a thorough grounding in the fundamentals of polymer science for more advanced study in the field of polymers. Topics include reaction engineering of step-growth polymerization, emulsion polymerization, and polymer diffusion.

Author: Anil Kumar
Publisher: CRC Press
ISBN: 042967631X
Category : Technology & Engineering
Languages : en
Pages : 598

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Exploring the chemistry of synthesis, mechanisms of polymerization, reaction engineering of step-growth and chain-growth polymerization, polymer characterization, thermodynamics and structural, mechanical, thermal and transport behavior of polymers as melts, solutions and solids, Fundamentals of Polymer Engineering, Third Edition covers essential concepts and breakthroughs in reactor design and polymer production and processing. It contains modern theories and real-world examples for a clear understanding of polymer function and development. This fully updated edition addresses new materials, applications, processing techniques, and interpretations of data in the field of polymer science. It discusses the conversion of biomass and coal to plastics and fuels, the use of porous polymers and membranes for water purification, and the use of polymeric membranes in fuel cells. Recent developments are brought to light in detail, and there are new sections on the improvement of barrier properties of polymers, constitutive equations for polymer melts, additive manufacturing and polymer recycling. This textbook is aimed at senior undergraduate students and first year graduate students in polymer engineering and science courses, as well as professional engineers, scientists, and chemists. Examples and problems are included at the end of each chapter for concept reinforcement.

Author: Ronald G. Larson
Publisher: Butterworth-Heinemann
ISBN: 1483162869
Category : Science
Languages : en
Pages : 381

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Constitutive Equations for Polymer Melts and Solutions presents a description of important constitutive equations for stress and birefringence in polymer melts, as well as in dilute and concentrated solutions of flexible and rigid polymers, and in liquid crystalline materials. The book serves as an introduction and guide to constitutive equations, and to molecular and phenomenological theories of polymer motion and flow. The chapters in the text discuss topics on the flow phenomena commonly associated with viscoelasticity; fundamental elementary models for understanding the rheology of melts, solutions of flexible polymers, and advanced constitutive equations; melts and concentrated solutions of flexible polymer; and the rheological properties of real liquid crystal polymers. Chemical engineers and physicists will find the text very useful.

Author: Daniel Joseph Segalman
Publisher:
ISBN:
Category : Molecular theory
Languages : en
Pages : 560

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Author: Antony N. Beris
Publisher: Oxford University Press
ISBN: 9780195344882
Category : Science
Languages : en
Pages : 704

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This much-needed monograph presents a systematic, step-by-step approach to the continuum modeling of flow phenomena exhibited within materials endowed with a complex internal microstructure, such as polymers and liquid crystals. By combining the principles of Hamiltonian mechanics with those of irreversible thermodynamics, Antony N. Beris and Brian J. Edwards, renowned authorities on the subject, expertly describe the complex interplay between conservative and dissipative processes. Throughout the book, the authors emphasize the evaluation of the free energy--largely based on ideas from statistical mechanics--and how to fit the values of the phenomenological parameters against those of microscopic models. With Thermodynamics of Flowing Systems in hand, mathematicians, engineers, and physicists involved with the theoretical study of flow behavior in structurally complex media now have a superb, self-contained theoretical framework on which to base their modeling efforts.