Simultaneous IPNs Based on Polyurethane and Poly urethane acrylate

Simultaneous IPNs Based on Polyurethane and Poly(urethane acrylate) 

For IPNs with intermediate compositions (40-75% of PUA), increasing scattering in the middle part of the curves is observed, which is characteristic of densely packed systems. However, even in this case, on the diffraction 

Authors present the structure of semi-IPNs as consisting of two parts microregions that have a lamellar structure of initial PU network and domains enriched in a hnear component. The dimensions of PU microregions are about 200 A. These regions are distributed in a heterogeneous matrix that consists of the chains connecting PU microregions and domains enriched in linear polymer. 

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Simultaneous IPNs Based on Polyurethane and Poly(urethane acrylate). . 77... 

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