Synthesis And Characterization Of Crosslinked Polydiacetylenes And Its Two Component Interpenetrating Polymer Networks Ipns By Simultaneous And Sequential Techniques Of Mixing
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Author | : Prasad Ika |
Publisher | : |
Total Pages | : 202 |
Release | : 1983 |
Genre | : Polydiacetylenes |
ISBN | : |
Download Synthesis and Characterization of Crosslinked Polydiacetylenes and Its Two Component Interpenetrating Polymer Networks (IPN's) by Simultaneous and Sequential Techniques of Mixing Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 740 |
Release | : 1986 |
Genre | : Dissertations, Academic |
ISBN | : |
Download Dissertation Abstracts International Book in PDF, Epub and Kindle
Author | : Kassu Gebreyes |
Publisher | : |
Total Pages | : 68 |
Release | : 1996 |
Genre | : |
ISBN | : |
Download Synthesis and Characterization of Interpenetrating Polymer Networks (IPN's) of Poly(2,6-dimethyl-2,4-phenylene Oxide) and Polydimethylsiloxane Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 664 |
Release | : 1990-10 |
Genre | : Ceramic materials |
ISBN | : |
Download Engineered Materials Abstracts Book in PDF, Epub and Kindle
Author | : D. Bloor |
Publisher | : Springer Science & Business Media |
Total Pages | : 413 |
Release | : 2013-03-09 |
Genre | : Science |
ISBN | : 9401727139 |
Download Polydiacetylenes Book in PDF, Epub and Kindle
The polydiacetylenes are a class of polymers that are attrac ting increasing attention worldwide. There are many reasons for this interest one of the most important being the availability of many polydiacetylenes as macroscopic, high quality, single crystals. This fact was first reported in the pioneering work of Prof. G. Hegner on the solid-state polymerization of disub stituted diacetylenes in the late 1960s. Since then studies of the polymerization process and the properties of monomers and polymers have advanced understanding of solid-state reactivity and the physiCS of quasi-one-dimensional materials. More recently work on soluble polydiacetylenes, gels and films has been of interest for both academic and technological reasons. Progress in this area has required a combination of research disciplines ranging from synthetic organic chemistry to solid state physics. The interdisciplinary effort required for success ful research in polydiacetylenes was reflected in the mix of chemists, physicists and materials scientists who attended the Workshop. The emerging potential for commercial applications of polydiacetylenes was also evident in the nearly equal partici pation of academic and industrial/government scientists. The WOrkshop was the first major international meeting to focus solely on polydiacetylenes. It provided a forum in which problems of mutual interest could be discussed by scientists with diverse backgrounds and interests. It also satisfied the need for a review of the science of these materials at a time when this basic understanding is leading to technological applications.
Author | : P. R. Srikanth Sharma |
Publisher | : |
Total Pages | : 312 |
Release | : 1998 |
Genre | : |
ISBN | : |
Download Synthesis and Characterization of Polymers and Interpenetrating Polymer Networks (IPNs) with Nonlinear Optical (NLO) Properties and Related Numerical Studies Book in PDF, Epub and Kindle
Author | : Qinyuan Chai |
Publisher | : |
Total Pages | : 77 |
Release | : 2013 |
Genre | : Chemical bonds |
ISBN | : |
Download Synthesis and Characterization of Ionically Crosslinked Networks Book in PDF, Epub and Kindle
The overall goal of this thesis was to investigate the synthesis and characterization of elastomeric polymer networks crosslinked by ion-pairs. To generate these networks, cationic polyacrylate ionomers with styrene sulfonate counter-ions were synthesized. These polymers were used to generate ionically crosslinked networks by copolymerization of the pedant vinyl ionomers with acrylate monomer. These ionically crosslinked elastomers swelled in organic solvent like covalently crosslinked elastomers, but could be dissolved and re-gelled by dissociating and re-associating the ionic bonds by double ion-exchange reactions under acidic and basic conditions. Uniaxial tensile testing and oscillatory shear rheology were used to characterize the mechanical properties of the materials and compared to covalently crosslinked control samples. In contrast to the covalently crosslinked polymers, the ionically crosslinked samples showed strong property dependence on temperature and level of strain. At room temperature, the ionically crosslinked polymer had similar properties with a covalently crosslinked elastomer. As the temperature was increased above 100°C, the fluid-like property became more and more obvious due to the rearrangement of the ionic bonds. In addition, under load the ionically crosslinked polymer also exhibited flow. This mechano-chemical response of the materials to reconfigure the network under thermo-mechanical load should provide opportunities for developing new processable and self-healing elastomers using ionic interactions.
Author | : |
Publisher | : |
Total Pages | : 712 |
Release | : 1989 |
Genre | : Dissertations, Academic |
ISBN | : |
Download Comprehensive Dissertation Index Book in PDF, Epub and Kindle
Author | : |
Publisher | : Springer Science & Business Media |
Total Pages | : 228 |
Release | : 2004-10-08 |
Genre | : Technology & Engineering |
ISBN | : 9783540217114 |
Download Polymer Synthesis Book in PDF, Epub and Kindle
1. T. Takata, N. Kihara, Y. Furusho: Polyrotaxanes and Polycatenanes: Recent Advances in Syntheses and Applications of Polymers Comprising of Interlocked Structures.- 2. M. Suginome, Y. Ito: Transition Metal-Mediated Polymerization of Isocyanides.- 3. K. Osakada, D. Takeuchi: Coordination Polymerization of Dienes, Allenes and Methylenecycloalkanes.
Author | : Shahin Maaref |
Publisher | : |
Total Pages | : 108 |
Release | : 1998 |
Genre | : Polymer networks |
ISBN | : |
Download Synthesis and Characterization of Interpenetrating Polymer Networks of Nanocomposite Materials with Polyethylacrylate and Polystyrene Book in PDF, Epub and Kindle