Metal Catalyzed Polymerization of Cyclic Olefins
Metal Catalyzed Polymerization of Cyclic Olefins

Author:

Publisher:

Published: 2004

Total Pages:

ISBN-13:

DOWNLOAD EBOOK

We have been interested in polymerization of cyclic olefins using transition metal catalysts. Two important polymerization fashions have been studied, ring opening metathesis polymerization and coordination insertion polymerization. Various kinds of transition metal complex are known to catalyze the ring opening metathesis polymerization. Among those transition metal complex, ruthenium has a great advantage of less oxophilicity. A less oxophilic nature of ruthenium allows to polymerize functionalized monomer and to utilize alcohol⁄water as reaction medium. Several examples of the polymerization of functionalized monomer are known, however, very few of the polymerization in water is known. In addition, ring opening metathesis polymerization does not involve extra reagents and production of by products. From the green chemistry stand point, the utilization of water and clean reaction has a significant meaning. We have reported the investigation of the ring opening metathesis polymerization of oxo-functionalized cyclic olefin in water medium using ruthenium salt (Chapter 2). The polynorbornene from the coordination-insertion polymerization has great features as engineering plastics, and because of its properties many research projects of the coordination polymerization of norbornene have been done. Whereas, few examples of polymerization studies of other cyclic olefin have been reported. Among these cyclic olefins, particularly of cyclobutene derivatives have never been reported, which is because of the facile pericyclic ring opening reaction of cyclobutene during polymerization and ring opening metathesis polymerization as a side reaction. This our report is the first report that cyclobutene derivatives are polymerized without pericyclic ring opening reaction or ring opening metathesis polymerization to afford high molecular weight addition polymer (Chapter 3).

Olefin Metathesis and Polymerization Catalysts
Olefin Metathesis and Polymerization Catalysts

Author: Yavuz Imamogammalu

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 567

ISBN-13: 940113328X

DOWNLOAD EBOOK

Olefin metathesis reaction can be considered as one of the most successful organic reactions with many applications in the low molecular weight range and also in the polymer field. The use of catalysts with their selective and effective transformation properties in olefin metathesis I polymerization systems is a growing interest. There has been great effort and competition in developing active and commercially useful catalysts. The main aim of this ASI was to gather several research groups and also the people from industry. to present existing knowledge and latest results in the field. A wide range of topics through homogeneous and heterogeneous aspects have been considered. Attention has been drawn to the metal-carbene and metallacyclobutane complexes as active species, the initiation mechanisms, the stereochemistry and thermodynamics of these reactions. New catalytic systems for the metathesis of alkenes and alkynes and fot' ring opening polymeriZation I block copolymerization reactions have been introduced. Spectroscopic studies for the characteriZation of catalysts, simulation studies explaining the function of chain carrier species and polymer degradation have also been covered. A detailed industrial report concerning the patents and applications in olefin metathesis I cyc1001efin polymerization area, fabrication and derivation has been presented. This volume contains the main lectures and seminars given at the NATO Advanced Study Institute on " Olefin Metathesis and Polymerization Catalysts: Synthesis, Mechanism and Utilization", held at Akcay. Babkesir. Turkey between 10th and 22nd September 1989.

Transition Metal Catalyzed Polymerizations
Transition Metal Catalyzed Polymerizations

Author: Roderic P. Quirk

Publisher: CUP Archive

Published: 1988

Total Pages: 888

ISBN-13: 9780521332897

DOWNLOAD EBOOK

This volume contains the proceedings of the Second International Symposium on Transition Metal Catalyzed Polymerizations held in 1986. The papers provide a broad-based perspective covering recent scientific and technological advances in Ziegler-Natta and metathesis polymerization, including olefin, diene, and acetylene polymerization, and copolymerization. The emphasis on reaction kinetics of polymerizations in different reagent and catalyst environments makes this volume of interest to both academic and industrial researchers.

Transition Metals and Organometallics as Catalysts for Olefin Polymerization
Transition Metals and Organometallics as Catalysts for Olefin Polymerization

Author: Walter Kaminsky

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 443

ISBN-13: 3642832768

DOWNLOAD EBOOK

More than 30 years after the discovery of transition metals and organometal lics as catalysts for olefin polymerization these catalysts did not have lost their fascination. Since 1953 when Karl Ziegler has discovered the catalytic polymerization of ethylene leading to plastically formable polymers which are mechanically stable up to temperatures of about 100°C, synthetic polymers and rubbers have made their way right into private houses. This discovery has been a main impetus for the fast growing production of plastics. The stereoselective poly merization of propylene and other long-chain a-olefins first detected by Giulio Natta leads to an even broadened field of applications. Another enforcing factor were the developments of Standard Oil of Indiana and Phillipps Petroleum Company who engaged in the polymerization of a-olefins supported molybdenum, cobalt and later on chromium catalysts which clearly indicates the wide variety of suitable systems. This kind of research acknowledged merit when in 1963 the Nobel prize of chemistry was awarded to Ziegler and Natta. Although to a great extent there is a technical application for these catalysts, up to now the nature of the active centres and many reaction mechanisms are not completely known.

Metal Catalysts in Olefin Polymerization
Metal Catalysts in Olefin Polymerization

Author: Zhibin Guan

Publisher: Springer Science & Business Media

Published: 2009-03-31

Total Pages: 262

ISBN-13: 3540877509

DOWNLOAD EBOOK

Polyolefin is a major industry that is important for our economy and impacts every aspect of our lives. The discovery of new transition metal-based catalysts is one of the driving forces for the further advancement of this field. Whereas the classical heterogeneous Ziegler-Natta catalysts and homogeneous early transition metal metallocene catalysts remain the workhorses of the polyolefin industry, in roughly the last decade, tremendous progress has been made in developing non-metallocene-based olefin polymerization catalysts. Particularly, the discovery of late transition metal-based olefin polymerization catalysts heralds a new era for this field. These late transition metal complexes not only exhibit high activities rivaling their early metal counterparts, but more importantly they offer unique properties for polymer architectural control and copolymerization with polar olefins. In this book, the most recent major breakthroughs in the development of new olefin polymerization catalysts, including early metal metallocene and non-metallocene complexes and late transition metal complexes, are discussed by leading experts. The authors highlight the most important discoveries in catalysts and their applications in designing new polyolefin-based functional materials.

Metal-Catalyzed Polymerization
Metal-Catalyzed Polymerization

Author: Samir Chikkali

Publisher: CRC Press

Published: 2017-08-03

Total Pages: 227

ISBN-13: 1498767583

DOWNLOAD EBOOK

The proposed book focusses on metal mediated/catalyzed “controlled/living radical polymerization” (CRP/LRP) methods. It surveys a wide variety of catalyzed polymerization reactions, making it essentially a “one stop” review in the field. A significant contribution to polymer science is “metathesis polymerization” discovered by Grubbs and others. The book will cover various metathesis polymerization methods and implications in polymer industry.

Metathesis Polymerization of Olefins and Polymerization of Alkynes
Metathesis Polymerization of Olefins and Polymerization of Alkynes

Author: Yavuz Imamogammalu

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 443

ISBN-13: 9401151881

DOWNLOAD EBOOK

The first NATO Advanced Study Institute on Olefin Metathesis and Polymerization Catalysts was held on September 10-22, 1989 in Akcay, Turkey. Based on the fundamental research of RRSchrock, RGrubbs and K.B.Wagener in the field of ring opening metathesis polymerization (ROMP), acyclic diene metathesis (ADMET) and alkyne polymerization, these areas gained growing interest within the last years. Therefore the second NATO-ASI held on metathesis reactions was on Ring Opening Metathesis Po lymerization of Olefins and Polymerization of Alkynes on September 3-16, 1995 in Akcay, Turkey. The course joined inorganic, organic and polymer chemists to exchange their knowledge in this field. This volume contains the main and short lectures held in Akcay. To include ADMET reactions better into the title of this volume we changed it into: Metathesis Polymerization of Olefins and Alkyne Polymerization. This volume is addressed to research scientists, but also to those who start to work in the area of olefin metathesis and alkyne polymerization. The topics of the course were: mechanism of ROMP reactions/ new catalysts for ROMP/ new products by ROMP/ new catalysts for ADMET/ new products by ADMETI degradation of polymer by metathesis reactions/ alkyne polymerization and metathesis/ industrial application of metathesis reactions. The Advanced Study Institute was generously sponsored by the Scientific Affairs Division of NATO and the editor gratefully acknowledges this sponsorship. We also thank the Members of the Local Organizing Committee for their engagement on a successful NATO-AS!.

Catalytic Polymerization of Cycloolefins
Catalytic Polymerization of Cycloolefins

Author: V. Dragutan

Publisher: Elsevier

Published: 2000-06-26

Total Pages: 1293

ISBN-13: 0080528627

DOWNLOAD EBOOK

This book covers the most important topics concerning cationic Ziegler-Natta and ring-opening metathesis polymerization of cycloolefins. The work describes the major pathways that cycloolefins can follow under the action of specific catalytic systems, essentially vinyl and ring-opening polymerization, both reaction types allowing the manufacture of distinct products with wide applicability in modern technologies. The comprehensive data available on this subject are logically and systematically selected and reviewed throughout 18 chapters, according to the basic catalytic processes involved, types of monomers and catalysts employed, reaction conditions and application fields. The modern trends in design of chiral metallocene catalysts, well-defined living metathesis catalysts, catalysts tolerant toward functionalities and water systems are highlighted. The book discusses in detail the relevant aspects of these processes including reaction thermodynamics, kinetics, mechanisms and stereochemistry and correlates the structure of produced polymers with their chemical and physical-mechanical properties. Related important topics include Ziegler-Natta polymerization of olefins and dienes, atom transfer radical polymerization of vinyl compounds, metathesis of olefins and acetylenes, acyclic diene metathesis reaction, carbonyl olefination reaction, metathesis polymerization of acetylenes, metathesis degradation of polymers and ring-opening polymerization of heterocycles. Special emphasis is laid upon the manufacture of commerical products, new polymers and copolymers of potential interest for industry and design and synthesis of speciality polymers with particular structures and architectures and desired properties. The book critically evaluates the most recent achievements reported in this field and outlines the modern trends on the research and application of the catalytic processes for cycloolefin polymerization. For the first time, comprehensive information about the published data on the subject up to now is provided for both academic and industrial researchers working in the areas of polymer chemistry, organic and organometallic chemistry, surface science and catalysis, petrochemistry and chemical engineering. This stimulating book offers an enlightening introduction and a quick documentation on the subject as well as a solid background in this field. Moreover, the work offers a wealth of useful information for specialists applying polymers in various scientific and industrial areas.