Properties of Thermoplastic Polyurethanes Based on the Mixtures of Simple Oligoethers

The interrelation between structures and strength, deformation, rheological, and tribotechnical characteristics of thermoplastic polyurethanes based on oligoether blends has been studied. A notable change of properties over the whole concentration range was observed. The best compositions have been found.

Structure and Application of ED-20 Epoxy Resin Hydroxy-Containing Derivatives in Bitumen-Polymeric Blends

New hydroxy-derived resin with primary hydroxy and epoxy groups has been synthesized on the basis of ED-20 epoxy resin and PolyTHF-2000 oligoether. The structures of the synthesized derivative and the product based on ED-20 epoxy resin and 1,4-butanediol which was synthesized by us earlier have been confirmed by IR- and NMR spectroscopy. The synthesized derivatives were investigated as polymeric components for bitumen-polymeric blends.

Synthesis and Application of Oligomer with Hydroxy Groups based on Peroxy Derivative of ED-24 Epoxy Resin and PolyTHF-2000 Oligoether

New oligomer with peroxy, primary and secondary hydroxy groups has been synthesized on the basis of peroxy derivative of ED-24 epoxy resin (PO) and PolyTHF-2000 oligoether according to the developed procedure. The effect of the catalysts nature and amount, temperature and process time on the reaction rate has been studied. Benzyltriethylammonium chloride, potassium hydroxide, 1,4-diazobicyclooctane and the mixture composed of benzyltriethylammonium chloride and KOH (molar ratio 1:1) were used as the catalysts.