Some aspects of the crystallization of high polymers.

  • 87 Pages
  • 3.20 MB
  • English
D. B. Centen , Amsterdam
Polymers and polymerization., Crystalliza
LC ClassificationsQD281.P6 S35
The Physical Object
Pagination87 p.
ID Numbers
Open LibraryOL6194179M
LC Control Number56000502

Get this from a library. Some aspects of the crystallization of high polymers. [Gerrit Schuur]. This chapter introduces the basic aspects of polymer crystallization in complex systems in terms of thermodynamics and kinetics. Various methods to describe the crystallization behavior under both isothermal and nonisothermal conditions are introduced.

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Morphology of polymers created by crystallization in complex systems is discussed. At this stage the subject divides into Some aspects of the crystallization of high polymers. book aspects according to the interest of the parties concerned: a) production method for high modulus, high strength fibres,b) the origin of gel Some New Aspects of Crystallization Modes in Polymers nm Fig.

Cited by: 1. Crystallization of polymers is a process associated with partial alignment of their molecular chains.

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These chains fold together and form ordered regions called lamellae, which compose larger spheroidal structures named spherulites. Polymers can crystallize upon cooling from melting, mechanical stretching or solvent evaporation.

Crystallization affects optical, mechanical, thermal and chemical. Some aspects of nonisothermal crystallization of polymers. a cooling condition under which heat transfer occurs at a rate proportional to the difference in temperature between polymer and the environment.

A rough estimation of the increase in the rate of crystallization under molecular orientation was carried out for very high Cited by: Since the discovery that polymer single crystals are composed of chain folded macromolecules inthe crystallization of polymers has attracted considerable interest and still provides fascinating and fruitful areas of research.

Only a few books have been fully devoted to the crystallization of polymers. In-situ tracking polymer crystallization during film blowing by synchrotron radiation X-ray scattering: The critical role of network Qianlei Zhang, Wei Chen, Haoyuan Zhao, Youxin Ji, Liangbin Li.

The classical view on polymer crystallization basically focused on the expla- tion of a few macroscopically observable parameters like the thickness of the resulting lamellar structure and the corresponding growth rates.

However, the emerging paradigm for the description of chain crystals is too. The crystallization rate constant K can be empirically expressed in terms of Arrhenius equation: () K 1 / n = K 0 exp (− Δ E R T c) where K 0 is the preexponential factor, R is the universal gas constant, and ΔE is the activation energy.

The activation energy can be determined from the lineal region of the plots of (1/n)lnK versus 1/T c, as shown in Fig. It is noted that plots of. Theoretical aspects of polymer crystallization in multiphase systems 3. Developments of experimental techniques in understanding the polymer crystallization 4.

Effects of Mass Transport on Crystallization from Miscible Polymer Blends 5. Crystallization behavior of crystalline-amorphous and crystalline-crystalline block copolymers containing. The Handbook of Polymer Crystallization is the right book for all researchers in this field.

It brings 13 selected topics that are representative of active research in polymer crystallization. They are all well organized by active scientists in the field and provide readers a glimpse of the broad landscape of polymer crystallization without the.

Polymer Crystallization I From Chain Microstructure to Processing. and each review critically surveys one aspect of that topic, to place it within the context of the volume.

Crystallization of Polymers Epitaxial Effects High Supercooling Crystallization Isotactic Polypropylene Molecular Crystallization Precision Ethylene Copolymers Self. About this book. Polymeric crystals are more complex in nature than other materials' crystal structures due to significant structural disorder present.

The only comprehensive reference on polymer crystallization, Handbook of Polymer Crystallization provides readers with a broad, in-depth guide on the subject, covering the numerous problems. Some aspects of the crystallization of high polymers () Pagina-navigatie: Main; Save publication. Save as MODS; Export to Mendeley; Save as EndNote.

Theoretical aspects of polymer crystallization with chain folds: Bulk polymers. Polymer Engineering and Science4 (4), DOI: /pen Preface. Morphology and structure of polymer crystals.

Lamellar and supralamellar organization. Polymer crystal growth. Molecular and submolecular organization in polymer crystals. Polymer crystal melting and growth. Experimental aspects (I). Morphology and structure of polymer crystals. Liquid crystals and solvent effects. A theory of oriented crystallization in elongated polymers having network structures (e.g., in vulcanized rubber) is developed through the application of statistical mechanical procedures similar to those employed in rubber elasticity theory.

Expressions are derived which, within the limitation imposed by the simplifying assumptions, relate the incipient crystallization temperature with the. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link).

Because the properties of polymeric materials are strongly dependent on the crystallization behavior and morphology, polymer crystallization is the most fundamental problem of polymer physics. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link); http://oai.

Some fundamental aspects of the kinetics of flow-induced crystallization of polymers Article in Colloid and Polymer Science (16) November with 11 Reads How we measure 'reads'. From the reviews: "This book is a monograph in Springer’s Mathematics in Industry series.

It is a merit of the book that it can be read without much knowledge of the application area as such, but at the same time contains very useful analyses for researchers.

it is certainly very well suited for a first encounter with a variety of mathematical modeling aspects. For making fibers, we like our polymers to be as crystalline as possible. This is because a fiber is really a long crystal.

Many polymers are a mix of amorphous and crystalline regions, but some are highly crystalline and some are highly amorphous. Here are some of the polymers that tend toward the extremes: Polyketones Polybutadiene.

In the context of polymer crystallization there are several still open and often controversially debated questions. The present volume addresses issues such as novel general views and concepts which help to advance our understanding of polymer crystallisation, nucleation phenomena, long living melt.

This book contains the proceedings of the NATO ARW devoted to the \'Crystallization of Polymers\' which took place in September at the University of Mons-Hainaut (Belgium). In view of the variety of papers devoted to the crystallization of polymers, this book will be used in the next few years as a reference book for scientists concerned.

The crystallization behavior of some immiscible systems is reviewed. The fourth section deals with compatibilized blends. The main compatibilization methods, including addition of copolymers and reactive mixing methods, are reported. The last section is dedicated to polymer blends containing liquid‐crystalline components.

CRYSTALLIZATION OF POLYMERS, SECOND EDITION In Crystallization of Polymers, second edition, Leo Mandelkern provides a self-contained, comprehensive, and up-to-date treatment ofpolymer crystallization. All classes ofmacro-molecules are included and the approach is through the basic disciplines ofchemistry and physics.

The book discusses the.

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It is the aim of this article to review the major theories of polymer crystallization since up to now we still have not completely comprehended the underlying mechanism in a unified framework. A lack of paradigm is an indicator of immaturity of the field itself; thus, the fundamental issue of polymer crystallization remains unsolved.

This paper provides an understanding of the basic hypothesis. The problems related to crazing in polymers are of special interest to polymer scientists since only polymers display this universal phenomenon and no analogues are available for low-molecular-mass compounds.

The important problems of solvent crazing and the development of a universal description of polymer structure and properties have received much attention from many. Polymer Crystallization – Literature review Introduction While it is not possible to cover the subject of polymer crystallization in a review of this size, it is important in light of author’s research to review the fundamental features that are essential to the study of polymer crystallization.

The topic itself is. The Crystallization of Polymers 2nd Edition provides a self-contained, comprehensive, and up-to-date treatment of polymer crystallization. Volume I is a presentation of the equilibrium concepts that serve as a basis for the subsequent volumes. Shin EJ, Jeong W, Brown HA, Koo BJ, Hedrick JL, Waymouth RM () Crystallization of cyclic polymers: synthesis and crystallization behavior of high molecular weight cyclic poly(ε-caprolactone)s.

Macromolecules 44(8)– CrossRef Google Scholar.Get this from a library! Crystallization modalities in polymer melt processing: fundamental aspects of structure formation.

[H Janeschitz-Kriegl] -- "The first book to explicitly focus on the processing of crystallizing polymers, it presents innovative research on diverse interfering processes to help clarify the subject. The first to address the.