Single-component polyurethane cements for the building industry. Part I. The effect of synthesis parameters
on the properties of cements
The mastery of the terpolymerization process with a partial crosslinking in the system of trioxane-dioxolane-epoxide resin as crosslinking agent with a simultaneous control of molecular mass by addition of methanol made it possible to prepare crosslinked terpolymers with MFI changing in a broad range. The products exhibit an increased rigidity as compared with the linear trioxane-dioxolane copolymer, a good processability by the injection moulding method, high energy of elasticity in the molten state, high thermal stability at the processing temperature. Changes in supermolecular structure of crosslinked terpolymers in the boundary regions of spherulites have been observed.
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