Order and Mobility in Polymers


Book Description







Molecular Order and Mobility in Polymer Systems


Book Description

Take an in-depth look at the modern problems of the equilibrium state in polymer science. The lectures published in this book reflect the progress of the investigators' interests towards more complicated systems with the elements of nanostructure organization. Topics include Copolymers and Polymer Blends, Macromolecules in Solution, Polymer Brushes, Micelles and Complexes,Polymer Networks, Bulk Polymers, and LC Polymer Systems. The Fourth International Symposium "Molecular Order and Mobility in Polymer Systems" held in June 2002 continued the series of St.-Petersburg IUPAC meetings organized by the institute of Macromolecular Compounds of the Russian Academy of Scientists (RAS).




Molecular Mobility in Deforming Polymer Glasses


Book Description

This book bridges disparate fields in an exploration of the phenomena and applications surrounding molecular mobility in glassy materials experiencing inelastic deformation. The subjects of plastic deformation and polymer motion/interdiffusion currently belong to the two different fields of continuum mechanics and polymer physics, respectively. However, molecular motion associated with plastic deformation is a key ingredient to gain fundamental understanding, both at the macroscopic and microscopic level. This short monograph provides necessary background in the aforementioned fields before addressing the topic of molecular mobility accompanied by macroscopic inelastic deformation in an accessible and easy-to-understand manner. A new phenomenon of solid-state deformation-induced bonding in polymers is discussed in detail, along with some broad implications in several manufacturing sectors. Open questions pertaining to mechanisms, mechanics, and modeling of deformation-induced bonding in polymers are presented. The book’s clear language and careful explanations will speak to readers of diverse backgrounds.







Molecular Mobility and Order in Polymer Systems


Book Description

Molecular Mobility and Order in Polymer Systems. The 5th International Symposium "Molecular Mobility and Order in Polymer Systems" was held in June 2005 as part of the series of St. Petersburg IUPAC meetings organized by the Institute of Macromolecular Compounds of the Russian Academy of Sciences. These meetings are the most important international gathering of polymer scientists in Russia. Main attention was paid to problems of structure and dynamics of polymer systems which combine order and pronounced molecular mobility, i.e., systems with so-called "soft" order. The lectures presented in this book demonstrate the growing interest in more and more complex polymer systems and reflect of progress in the understanding of the interconnection between their structure and dynamics. Experimental, theoretical and simulation works are presented.







Intrinsic Molecular Mobility and Toughness of Polymers I


Book Description

Ce livre historique peut contenir de nombreuses coquilles et du texte manquant. Les acheteurs peuvent generalement telecharger une copie gratuite scannee du livre original (sans les coquilles) aupres de l'editeur. Non reference. Non illustre. 1838 edition. Extrait: ...a tetat naissant, et particularite relative a ce principe dans quelques legumineuses. Afin de rechercher si les memes proprietes existaient dans l'amidon, a l'etat naissant ou tres jeune, j'examinai cette secretion au moment ou elle se montre dans les cotyledons encore baignes par le liquide sucre de l'ovule du pisum sativum. Ses grains tres petits alors, offrent aussi les caracteres physiques et chimiques qui precedent, et ceux que nous exposerons plus loin; une particularite remarquable dans leurs formes a ete decrite et figuree pi. 4 fig-' ' ' Dans les cotyledons de la feve commune, on trouve des grains d'amidon plus sinueux encore. L'amidon extrait des haricots et des lentilles presente des grains qui se dessinent par des contours moins sinueux que les precedens. Enfin, l'amidon en tres petite quantite dans les-graines de Colutea arborescens (Baguenaudier), est en grains excessivement petits, qui sont arrondis quoique plus ou moins irreguliers. X. Botak.--Stptrmlre. i La configuration sinueuse, contournee ou vermiforme, observee dans plusieurs graines des legumineuses, ne se retrouve donc pas dans toutes au meme degre; elle offrfun exemple de plus des varietes de formes que peut affecter l'amidon dans les circonstances legerement variables, ou se produit cette secretion, sans que les caracteres physiques essentiels ni la composition chimique soient differentes.;; ..., r..', ', ., Amidon completement epure, ...







Structural Order in Polymers


Book Description

Structural Order in Polymers presents the increasing importance of the relationships between order in the chemical constitution and in the steric structure of the macromolecules and physical and chemical properties of the polymers. This book discusses the simple types of steric order found in biopolymers. Organized into three parts encompassing 16 chapters, this book begins with an overview of the structural regularity as a primary requisite for the crystallization of a polymer. This text then examines the structure of cellulose, which is the most significant structural stereoregular polymer. Other chapters consider the major concepts of the stereoregulation of propylene catalytic polymerization. This book discusses as well the factors that determine microstructure and stereospecifity in polymerization. The final chapter deals with the significant role that membranes and membrane-related processes play in solving many ecological problems. This book is a valuable resource for chemical engineers, chemists, physicists, scientists, and research workers.