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Showing 1 to 7 of 7 for “"Polyaddition"”.
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Lyotrop flüssigkristalline Epoxid-Amin Additionspolymere und Elastomere
Die Polyaddition von hydrophilen Oligo-ethylenglycolbisepoxiden und hydrophoben Aminen führt zu lyotrop flüssigkristallinen Polymeren neuartiger Geometrien, deren Phasenzustand über den pH-Wert beeinflusst werden kann. Der Einsatz von primären Aminen führt zu Seitenkettenpolymeren eines neuen …
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Polymer Gradient Materials
… These gradient threads are formed by a polyaddition process, show unique mechanical properties and demonstrate how nature solves the engineering problem of connecting two materials of different modulus. Therefore, the adaptation to synthetic polymer gradient materials is very interesting …
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Synthesis And Polymerization Of Bifunctional Five-membered Cyclic Dithiocarbonates And Their Use As Stabilizers For Magnetic Nan
… transmission infrared (FTIR) spectroscopy. The polyaddition polymerization of 1,3-oxathiolane-2-thione with 1,4-diaminobutane at room temperature resulted in a poly(thiourethane) material. The latter undergoes crosslinking due probably to the autooxidation of the product and formation of …
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Variable Frequency Microwave Curing of Polyurethane
… 1937 when Otto Bayer developed the diisocyanate polyaddition process [Randall et al, 2002]. Since that time, literally thousands of PUR compositions have been used commercially. The primary application of interest in this study is that of coatings for wood substrates. It is well-known among …
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"Reactive hard templating" : from carbon nitrides to metal nitrides
… put in the synthesis of this material. A simple polyaddition/elimination reaction path at high temperature (T = 550°C) allows the polymerisation of cyanamide toward graphitic carbon nitride solids. By hard templating, using nanostructured silica or aluminium oxide as nanotemplates, a variety of …
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BIOINSPIRED POLYAMIDOAMINES AS INNOVATIVE FLAME RETARDANTS FOR CELLULOSIC FABRICS
… (PAAs) were synthesized by Michael-type polyaddition from N,N’-methylenebisacrylamide, M, and nine natural α-amino acids, namely L-alanine (M-ALA), L-valine (M-VAL), L-leucine (M-LEU), L-histidine (M-HIS), L-serine (M-SER), L-asparagine (M-ASN), L-glutamine (M-GLN), L-aspartic acid …
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Step-Growth Polymerization Towards the Design of Polymers: Assembly and Disassembly of Macromolecules
Step-growth polymerization provided an effective method for the preparation of several high performance polymers. Step-growth polymerization was used for syntheses of poly(siloxane imides), polyesters, poly(triazole esters), poly(triazole ether esters), and epoxy networks. Each of these polymeric …