Abstract
Thermo-reversible PMMA/PU interpenetrating polymer networks were successfully prepared by Diels-Alder (DA) reaction using a furan-functionalized polymethyl methacrylate, furan-functionalized polyurethane and a maleimide-based coupling agent. First, homo-networks were synthesized and characterized in order to predict the characteristics of the corresponding interpenetrating network. Polyurethane networks were confirmed to be reversible with a temperature of retro-Diels-Alder varying from 135 °C to 144 °C depending on the cross-linking density. PMMA/PU blends are completely immiscible as shown by the presence of two Tgs corresponding to the two phases in DSC results. Due to the presence of supramolecular interactions, no phase separation was observed in the simultaneously cross-linked PMMA/PU networks. Thermal behavior and de-cross-linking of the IPNs were studied by DSC, solubility tests and rheology. Swelling tests allowed the evaluation of the networks density.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
