Search academic texts

Information × Registration Number 0211U001516, 0109U002409 , R & D reports Title The investigation in the field of supercritical carbon dioxide utilization for syntheses of monomers, oligomers and network polymers popup.stage_title Head Karateev Arnold, Registration Date 09-02-2011 Organization National technical university "Kharkiv polytechnic institute" popup.description2 The research objects are the five-membered cyclocarbonate with pendant furan ring (furfuryloxypropyl cyclocarbonate or FOPCC), which have been synthesized by reaction of furfuryl glycidyl ether (FGE) with supercritical (SC) СО2, and dihydroxyurethane oligomers, which have been prepared by the "FOPCC-diamine" reaction. The purpose of this study is the preparation of new polymeric materials (e.g. chemical resistant, weatherproof and heat-resistant materials) by using of environmentally appropriate technology from renewable resources (atmospheric СО2 and pentose-rich agricultural residues). The research methods are DSC, IR and H1-NMR spectroscopy and testing of mechanical properties of coatings (e.g. adhesions, hardness, impact resistance). For the first time the carbonization reaction of FGE and SC СО2 with 0,5 % (w.) catalyst have been investigated by IR and H1-NMR spectroscopy methods and the FOPCC have been synthesized. For the first time the dihydroxyurethane oligomers with pendant furan rings have been prepared also. This oligomers react with bis-maleimides and form Diels-Alder polyadducts. The reactions of FOPCC with aliphatic and aromatic diamines and model diene syntheses with mono- and bis-maleimides have been investigated by DSC method. The kinetic parameters of reactions such as activation energy (Ea) and reaction order (n) have been determinated. The obtained materials correspond with world analogues and exceed in some properties. Product Description popup.authors Корягіна Н.О. Літвінов Д.О. Пантелеєва Л.В. popup.nrat_date 2020-04-02 Close