Edward N. Peters, Chief Scientist, SABIC, Selkirk, NY 03.19.18
Abstract
Polyurethanes have extensive structure/property diversity. They can be synthesized with a number of materials to modify and tailor their performance. There is interest in broadening the performance profile of Thermoplastic Polyurethanes (TPUs) with increased thermal stability and greater hydrophobicity. PPE telechelic macromonomers (PPE-M) are unique hydrophobic polyols which have an impressive track record in broadly enhancing the performance of epoxy resins, cyanate esters, and thermoplastics. Seeking to meet this demand for enhanced TPU performance, PPE-M were used to synthesize amphiphilic polyurethane block copolymers. In this paper, the performance properties of TPUs produced using these novel hydrophobic polyols are presented and their properties compared against reference TPUs. It was found that TPUs derived from these novel polyols maintain exceptional physical and mechanical performance while also exhibiting improved resistance to moisture and thermo-oxidative degradation. In addition, abrasion, tear, electric insulating properties, and chemical resistance were improved.
Polyurethanes have extensive structure/property diversity. They can be synthesized with a number of materials to modify and tailor their performance. There is interest in broadening the performance profile of Thermoplastic Polyurethanes (TPUs) with increased thermal stability and greater hydrophobicity. PPE telechelic macromonomers (PPE-M) are unique hydrophobic polyols which have an impressive track record in broadly enhancing the performance of epoxy resins, cyanate esters, and thermoplastics. Seeking to meet this demand for enhanced TPU performance, PPE-M were used to synthesize amphiphilic polyurethane block copolymers. In this paper, the performance properties of TPUs produced using these novel hydrophobic polyols are presented and their properties compared against reference TPUs. It was found that TPUs derived from these novel polyols maintain exceptional physical and mechanical performance while also exhibiting improved resistance to moisture and thermo-oxidative degradation. In addition, abrasion, tear, electric insulating properties, and chemical resistance were improved.
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