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Author : Glenn Edward Gerhardt
Publisher :
Page : 386 pages
File Size : 49,29 MB
Release : 1978
Category : Ethers
ISBN :
Author : Gareth G. Hougham
Publisher : Springer Science & Business Media
Page : 338 pages
File Size : 13,45 MB
Release : 2006-04-11
Category : Science
ISBN : 0306469189
The fluorine atom, by virtue of its electronegativity, size, and bond strength with carbon, can be used to create compounds with remarkable properties. Small molecules containing fluorine have many positive impacts on everyday life of which blood substitutes, pharmaceuticals, and surface modifiers are only a few examples. Fluoropolymers, too, while traditionally associated with extreme hi- performance applications have found their way into our homes, our clothing, and even our language. A recent American president was often likened to the tribology of PTFE. Since the serendipitous discovery of Teflon at the Dupont Jackson Laboratory in 1938, fluoropolymers have grown steadily in technological and marketplace importance. New synthetic fluorine chemistry, new processes, and new apprec- tion of the mechanisms by which fluorine imparts exceptional properties all contribute to accelerating growth in fluoropolymers. There are many stories of harrowing close calls in the fluorine chemistry lab, especially from the early years, and synthetic challenges at times remain daunting. But, fortunately, modern techniques and facilities have enabled significant strides toward taming both the hazards and synthetic uncertainties. In contrast to past environmental problems associated with fluorocarbon refrigerants, the exceptional properties of fluorine in polymers have great environmental value. Some fluoropolymers are enabling green technologies such as hydrogen fuel cells for automobiles and oxygen-selective membranes for cleaner diesel combustion.
Author : A. P. Kharitonov
Publisher : Nova Publishers
Page : 110 pages
File Size : 15,57 MB
Release : 2008
Category : Science
ISBN : 9781604562071
"In this book fundamental features and industrial applications of the direct fluorination of polymers are reviewed. Direct fluorination of polymers (i.e. treatment of a polymer surface with gaseous fluorine and its mixtures) proceeds at room temperature spontaneously and can be considered as a surface modification process."--BOOK JACKET.
Author : Richard J. Lagow
Publisher :
Page : 10 pages
File Size : 29,73 MB
Release : 1976
Category :
ISBN :
The objective of this research is to utilize a new fluorination technique for making fluorocarbon oligomers and polymers. The work will provide methods for synthesizing monomers and oligomers useful in making fluorocarbon ether elastomers. The research is aimed at the utilization of a direct fluorination technique for the conversion of organic compounds, particularly oxygen-containing organic compounds to polymerizable difunctional perfluorinated monomers and oligomers. (Author).
Author : Bruno Ameduri
Publisher : Royal Society of Chemistry
Page : 417 pages
File Size : 35,37 MB
Release : 2016-10-25
Category : Science
ISBN : 1782626719
Fluoropolymers display a wide range of remarkable properties and are used in a number of applications including high performance elastomers, thermoplastics, coatings for optical fibers, and hydrophobic and lipophobic surfaces. Fluorinated Polymers: Synthesis, Properties, Processing and Simulation covers the fundamentals of different fluorinated polymers. Topics include the kinetics of homopolymerisation and copolymerization, process chemistry, and controlled radical co-polymerisation techniques. Written by internationally recognized academic and industrial contributors, the book will be of interest to those in industry and academia working in the fields of materials science, polymer chemistry and energy applications of polymers. Together with Fluorinated Polymers: Applications, these books provide a complete overview of different fluorinated polymer materials and their uses.
Author : Bruno Ameduri
Publisher : Elsevier
Page : 499 pages
File Size : 11,83 MB
Release : 2004-07-07
Category : Technology & Engineering
ISBN : 0080474829
Because of the increasing need for ever better performing materials endowed with specific properties, macromolecular engineering has become a useful tool for designing well-architectured polymers (telomers, telechelics, stars, dendrimers, alternating, block- and graftcopolymers). These polymers are nowadays seeing an enormous growth. Among them, fluoropolymers are seen as high value added materials in many applications ranging from surfactants, optical fibers, biomaterials, coatings, to membranes for fuel cells. Indeed, the relationship between structure of the monomer to the properties of the polymers is of increasing interest so that these properties are tuned for the most appropriate applications. As most fluoropolymers are prepared from radical synthesis, this book devotes various parts on the use of the controlled radical (or pseudo-living) polymerisation of fluoromonomers leading to discoveries of thermoplastic elastomers or original surfactants for polymerisation in supercritical CO2. Well-Architectured Fluoropolymers: Synthesis, Properties and Applications is composed of five chapters starting with a general introduction outlining basic concepts. Emphasis is placed on recent developments, and each chapter describes comprehensive techniques of synthesis of well-defined fluorotelomers or polymers, their properties, characterisations, and their applications, for immediate use by today’s engineers, industrial and academic scientists, and researchers. The book has been arranged to enable self-managed reading and learning. It is both a source of data and a reference. On the synthesis, properties and applications of fluoropolymers: remarkable, high value added materials applied in surfactants, optical fibres, biomaterials, coatings and membranes for fuel cells For immediate use by today's engineers, industrial and academic scientists, and researchers Written to enable self-managed reading and learning, being both a source of data and a reference
Author : Robert Earl Aikman
Publisher :
Page : 145 pages
File Size : 43,74 MB
Release : 1981
Category : Fluorination
ISBN :
Author :
Publisher :
Page : pages
File Size : 10,9 MB
Release : 1979
Category :
ISBN :
Three main synthetic routes were used: oxyfluorination of branched polymers such as poly-4-methylpentene, hydrolysis of perfluorinated pendant polyesters, and direct fluorination of polyester and anhydride hydrocarbon. All 3 routes have been highly successful. Film-forming polymer mixtures have been designed which permit independent control of the cross-link density and the concentration of ionizable groups. (DLC).
Author : Lieng-Huang Lee
Publisher : Springer Science & Business Media
Page : 428 pages
File Size : 19,54 MB
Release : 2013-03-09
Category : Technology & Engineering
ISBN : 1461399424
Polymers and polymer composites have been increasinqly used in place of metals for various industries; namely, aerospace, automotive, bio-medical, computer, electrophotography, fiber, and rubber tire. Thus, an understanding of the interactions between polymers and between a polymer and a rigid counterface can enhance the applications of polymers under various environments. In meet ing this need, polymer tribology has evolved to deal with friction, lubrication and wear of polymeric materials and to answer some of the problems related to polymer-polymer interactions or oolymer rigid body interactions. The purpose of this first International Symposium was to introduce advances in studies of polymer friction and wear, especially in Britain and the U.S.S.R. Most earlier studies of the Fifties were stimulated by the growth of rubber tire industries. Continuous research through the Sixties has broadened the base to include other polymers such as nylon, polyolefins, and poly tetra fluoroethylene, or PTFE. However, much of this work was published in engineering or physics journals and rarely in chemistry journals; presumably, the latter have always considered the work to be too applied or too irrelevant. Not until recent years have chemists started to discover words such as tribo-chemistry or mechano chemistry and gradually become aware of an indispensable role in this field of polymer tribology. Thus, we were hoping to bring the technology up to date during this SympOSium, especially to the majority of participants, polymer chemists by training.
Author : Hans R. Kricheldorf
Publisher : CRC Press
Page : 830 pages
File Size : 26,17 MB
Release : 1991-12-23
Category : Technology & Engineering
ISBN : 9780824785154
A compact but comprehensive review of the most important preparative methods for the synthesis and chemical modification of polymers. The contents of the two-volume handbook (Part A was cited in the May 1992 SciTech Book News) are subdivided according to the chemical structure of the polymer backbone on the one hand (Chapters 1-14 of Part A and 15-18 of Part B) and special properties and applications of polymers regardless of their chemical structure on the other hand (Chapters 19-27 of Part B). The latter chapters deal with, for instance, electroconductive polymers, polymeric reagents, and models of bio-polymers. Includes some 11,000 references to the original literature. Annotation c. by Book News, Inc., Portland, Or.