Stereospecific polymerization of isoprene / by Elena Ceauşescu

Author: Ceauşescu, Elena
Uniform Title: Polímerizarea stereospecifică a izoprenului. English
Published: Oxford [Oxfordshire] ; New York : Pergamon, 1983.
Edition: First English edition.
Physical Description: 1 online resource (x, 280 pages)

Access Online

ezaccess.libraries.psu.edu

Availability

Finding items...

Contents

Front Cover; Stereospecific Polymerization of Isoprene; Copyright Page; Foreword; Preface; Table of Contents; PART I: DISSERTATION FOR THE DEGREE OF DOCTOR OF CHEMICAL ENGINEERING; LITERATURE DATA; Introduction; Chapter I. General comments on stereospecific polymerization; 1. Research prior to the discovery of stereospecific polymerization; 2. Structural characteristics; 3. The main types of stereoregular polymers; 4. General methods for the synthesis of stereoregular polymers; Chapter II. Stereospecific catalysts; A. Heterogeneous catalyst systems; B. Homogeneous catalyst systems, C. Catalysts effective in polar media Chapter III. Mechanisms of stereospecific polymerization; A. Free radical mechanisms; B. Ionic mechanisms; C. Mechanisms of polymerization using Ziegler-Natta catalyst systems; Chapter IV. Kinetics of stereospecific polymerization; EXPERIMENTAL PART; Chapter I. Purification of the reagents used in the stereospecific polymerization of isoprene; A. Purification of isoprene; B. Solvent purification; C. Purification of catalyst components; D. Purification of nitrogen, Chapter II. Research on the stereospecific polymerization of isoprene with heterogeneous catalyst systems of the A1R3 + TiCl4 type A. Polymerization of isoprene of over 99% purity; B. Polymerization of the ca. 25 % isoprene fraction; C. Some aspects of the kinetics of the stereospecific polymerization of isoprene; Chapter III. Characterization of cis-1,4-polyisoprene; A. Physico-chemical characterization; B. Physico-mechanical characterization; Conclusions; PART II; Introduction; Chapter I. Pre-formed Ziegler-Natta-typecatalyst systems; 1. Two-component A1R3 + TiCl4 catalyst systems, 2. Modified A1R3 + TiCl4 catalyst systems Chapter II. Stereospecific polymerization of isoprene with pre-formed catalyst complexes; 1. Purity of polymerization systems; 2. Some aspects of isoprene polymerization; 3. Correlation between the structure and the technological behaviour of polyisoprene; Chapter III. Deactivation of the catalyst complex; 1. Deactivation of the catalyst complex without inactivation of the transition metal; 2. Deactivation of the catalyst complex with inactivation of the transitionmetal; 3. Deactivation of the catalyst complex in the absence of polyisoprene, and 4. Deactivation of the catalyst complex in the presence of polyisoprene Chapter IV. The stabilization of polyisoprene; 1. Autoxidation mechanisms; 2. Relationships between structure and reactivity; 3. Selection criteria for stabilizers; 4. Mixtures of stabilizers; 5. Estimation of the effectiveness of stabilizers; 6. Macromolecular antioxidants; Chapter V. Recovery of polyisoprene from solution; Chapter VI. Characterization of cis-1,4-polyisoprene rubber by nuclearmagnetic resonance, electronmicroscopy and electron diffraction

Summary

Stereospecific Polymerization of Isoprene, a doctoral dissertation by Dr. Elena Ceausescu, is a study of the synthesis of cis-l, 4-polyisoprene rubber, an elastomer of synthetic rubber whose structure and properties are similar to that of natural rubber. This elastomer is primarily used in the manufacture of tires, belts, hoses, matting, flooring, dampeners, and other synthetic rubber goods. The book is organized into two parts. Part I, the Ph.D. thesis, focuses on the explanation and exposition of the polymerization reaction; properties of the polymer; and certain theoretical aspects related.

Subject(s)

ISBN

9781483154749 (electronic bk.)
1483154742 (electronic bk.)
0080299873
9780080299877

Note

Translation of: Polímerizarea stereospecifică a izoprenului.

Bibliography Note

Includes bibliographical references.

View MARC record | catkey: 18157960