Hydrogen bonds in heterogeneous blends based on semicrystalline polyurethane and styrene-acrylic acid block copolymer |
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| Authors: | O V Slisenko O P Grigor’eva O N Starostenko D I Sukhorukov E V Lebedev |
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| Institution: | (1) Institute of Macromolecular Chemistry, National Academy of Sciences of Ukraine, Khar’kovskoe sh. 48, Kiev, 02160, Ukraine |
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| Abstract: | New film-forming polymer composites based on the semicrystalline polyurethane and the styreneacrylic acid block copolymer have been synthesized. The effect of hydrogen bonds on the phase structure and properties of the composites has been studied by dynamic MTA, DSC, thermogravimetry, and IR spectroscopy. Formation of the network of intermolecular hydrogen bonds between urethane groups of polyurethane and carboxyl groups of block copolymer components leads to a decrease in the microphase separation of the composites under study and improves their thermooxidative stability. |
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