Download or read book Physical Properties of Polyurethane Block Copolymers Based on a Cycloaliphatic Diisocyanate written by Laura Ellen Lerner and published by . This book was released on 1978 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical Characteristics of Poly urethane urea Block Copolymers Based on Dimeryl Diisocyanate written by Jeng-Fu Wu and published by . This book was released on 1979 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Szycher s Handbook of Polyurethanes written by Michael Szycher PhD and published by CRC Press. This book was released on 2012-07-13 with total page 1113 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical handbook rather than merely a chemistry reference, Szycher's Handbook of Polyurethanes, Second Edition offers an easy-to-follow compilation of crucial new information on polyurethane technology, which is irreplaceable in a wide range of applications. This new edition of a bestseller is an invaluable reference for technologists, marketer
Download or read book Properties of Some Thermoplastic Polyurethane Block Copolymers in Relation to Their Structure and Morphology written by Krisda Suchiva and published by . This book was released on 1978 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: POLYURETHANE COPOLYMERS, ELASTOMERS, CHEMICAL STRUCTURE, POLYMER MORPHOLOGY, THERMAL PROPERTIES, MECHANICAL PROPERTIES, ELECTRON MICROSCOPY, ALIPHATIC POLYESTERS, CRYSTAL STRUCTURE.
Download or read book The Effects of Segmental Incompatibility and the Degree of Phase Separation on the Morphology and Properties of Polyurethane Block Copolymers written by Thomas Arthur Speckhard and published by . This book was released on 1985 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Properties and Blood Compatibility of Polyurethane Block Copolymers written by Timothy Gerald Grasel and published by . This book was released on 1987 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Physical Properties of Poly Perfluoroalkylether Urethanes written by and published by . This book was released on 1989 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyurethane block copolymers were synthesized containing 33 and 50 wt% soft segment, and hard segment based on 4,4-diphenylmethane dissocyanate (MDI) chain extender. The soft segments were mixtures of poly(tetramethylene oxide) (PTMO) and poly(perfluoroalkylether) (PFEG) glycols (Mn=1000 and 1900, respectively), ranging from 4 to 100wt% PFEG. The PMTO polyol in one sample was substituted with a PMTO/ethylene oxide polyol (75:25 mole ratio) (Mn=1140). The MDEA-extended polymer was ionized using 1,3-propane sultone. The morphology, bulk, and surface properties of these polymers were evaluated by a variety of techniques. Differential scanning calorimetry and dynamic mechanical analysis showed that the incorporation of PFEG into the soft segment phase slightly enhanced the degree of phase separation. Polyurethanes; Poly(perfluoroalkylether); Mixed soft segment; Polymers; Organic chemistry.
Download or read book Optical and Mechanical Properties of Polyurethane Diacetylene Block Copolymers written by Renu Narayan Agrawal and published by . This book was released on 1989 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Structure and Properties of Some Polyurethane Block Copolymers written by A. P. Brazier and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Szycher s Handbook of Polyurethanes Second Edition written by Michael Szycher, Ph.D and published by CRC Press. This book was released on 2012-07-13 with total page 1147 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical handbook rather than merely a chemistry reference, Szycher's Handbook of Polyurethanes, Second Edition offers an easy-to-follow compilation of crucial new information on polyurethane technology, which is irreplaceable in a wide range of applications. This new edition of a bestseller is an invaluable reference for technologists, marketers, suppliers, and academicians who require cutting-edge, commercially valuable data on the most advanced uses for polyurethane, one of the most important and complex specialty polymers. internationally recognized expert Dr. Michael Szycher updates his bestselling industry "bible" With seven entirely new chapters and five that are revised and updated, this book summarizes vital contents from U.S. patent literature—one of the most comprehensive sources of up-to-date technical information. These patents illustrate the most useful technology discovered by corporations, universities, and independent inventors. Because of the wealth of information they contain, this handbook features many full-text patents, which are carefully selected to best illustrate the complex principles involved in polyurethane chemistry and technology. Features of this landmark reference include: Hundreds of practical formulations Discussion of the polyurethane history, key terms, and commercial importance An in-depth survey of patent literature Useful stoichiometric calculations The latest "green" chemistry applications A complete assessment of medical-grade polyurethane technology Not biased toward any one supplier’s expertise, this special reference uses a simplified language and layout and provides extensive study questions after each chapter. It presents rich technical and historical descriptions of all major polyurethanes and updated sections on medical and biological applications. These features help readers better understand developmental, chemical, application, and commercial aspects of the subject.
Download or read book Polyethylene Based Polyurethane Copolymers and Block Copolymers written by and published by . This book was released on 1994 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low molecular weight hydroxy terminated polyethylene (HTPE) containing on average an ethyl group every 16-18 carbon atoms, and a hydroxy functionality of 2.6, has been used to prepare polyurethane copolymers and block copolymers which have good solvent resistance. The polymers show somewhat complicated thermal behavior, including T sub g at around -40 deg C due to the HTPE and diffuse endotherms between 40 and 60 deg C. The simple copolymers, containing only the polyol and a diisocyanate, show infrared evidence for two phases in the case where CHDI (trans-1,4-diisocyanatocyclohexane), was used, and poorer phase separation where other diisocyanates were used. Dynamic mechanical spectra show very broad tan delta transitions for the copolymers in the range of -9 to -23 deg C. All the polymers exhibit another transition in the G" curve above room temperature. For the simple copolymers at 30 deg C, SAXS reveals a microphase separated structure which increases in spacing, then disappears in the 60-70 deg C range. With cooling, the microphase separated structure reappears readily for the CHDI-based copolymer, while its reappearance shows a hysteresis resulting from rate effects for the other copolymers. (jg).
Download or read book Catalog of Polymer Science and Engineering Programs Including Computer Programs written by and published by . This book was released on 1980 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biomaterials written by S.V. Bhat and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: As biomaterials are used in medical devices, meeting needs in such diverse surgical disciplines as ophthalmology, cardiology, neuromuscular surgery, orthopaedics, dentistry, etc., they must have intimate contact with patient's tissue or body fluids, providing a real physical interface which seriously restricts developments. This book is written for those who would like to advance their knowledge of biomaterials. The subject matter of the book is divided into twelve chapters dealing with the structure and relationship of biological and man-made biomaterials. The application of these materials for various medical devices, and recent developments in tissue engineering, are also discussed.
Download or read book Biomaterials written by Sujata V. Bhat and published by Alpha Science Int'l Ltd.. This book was released on 2005 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: As biomaterials are used in medical devices, providing needs in such diverse surgical disciplines as ophthalmology, cardiology, neuromuscular surgery, orthopedics, dentistry etc., they must have intimate contact with patient's tissue or body fluid providing a real physical interface, which restricts developments most seriously. This book is written for those who would like to advance their knowledge of biomaterials. The subject matter of the book is divided into twelve chapters dealing with structure and relationship of biological and man made biomaterials. The application of these materials for various medical devices and recent developments in tissue engineering has also covered.
Download or read book Physical Properties of Elastomeric Block Copolymers written by Peter Rhys Lewis and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polyurethane Elastomers written by C. Hepburn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this monograph has been to distil into a single volume, in an easily read and assimilated format, the essentials of this often complex technology such that it is usable by all technical and semi-technical people who wish to become their own polyurethane and polyurethane elastomer expert.
Download or read book Block Copolymers written by Allen Noshay and published by . This book was released on 1977 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
