Surface treatment of ultra-high molecular weight polymers
| DWPI Title: Surface modification of ultra-high molecular weight polyolefins, involves reacting polyolefinic material with rhodium catalyst and diazo-containing compound to form functionalized polyolefinic material with group bonded to backbone |
| Abstract: The methods and compounds disclosed herein relate to the surface modification of UHMWPs by means of a catalytic C—H bond insertion catalyst using a rhodium catalysts in conjunction with carbene-generating diazo compounds. The catalytic treatment imparts covalently added functionality to the UHMWPE surface. This functionality acts as an excellent grafting mechanism for grafting, bonding, or adhering further materials to the UHMWPs surface. |
| Use: Method for surface modification of ultra-high molecular weight polyolefins. |
| Advantage: The catalytic treatment imparts covalently added functionality to UHMWPE surface, thus functionality acts as an excellent grafting mechanism for grafting, bonding, or adhering further materials to the UHMWPEs surface after functionalization, the surface of the treated material can then be readily modified to match chemistry of common resin systems, and allows for substantial improvement in adhesion between the materials, offering the ability to make highly resilient composite structures, improving reactivity at the UHMWPE material surface, and providing a route to physically (covalently) tether resins to the material surface. |
| Novelty: Surface modification of ultra-high molecular weight polyolefins (UHMWPs) involves reacting polyolefinic material with rhodium catalyst, and diazo group containing compound to form a functionalized polyolefinic material with a functional bonded to the backbone of the polyolefin chain, where functionalized polyolefinic material is an ultra high molecular weight polyolefin, having a weight-average molecular weight of 1000000-10000000 g/mol. |
| Filed: 8/30/2017 |
| Application Number: US15690687A |
| Tech ID: SD 13171.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
| Data from Derwent World Patents Index, provided by Clarivate All rights reserved. Republication or redistribution of Clarivate content, including by framing or similar means, is prohibited without the prior written consent of Clarivate. Clarivate and its logo, as well as all other trademarks used herein are trademarks of their respective owners and used under license. |