Acid-Mediated Autocatalysis in Vinylogous Urethane Vitrimers.
Sign Up to like & getrecommendations! Published in 2020 at "Macromolecular rapid communications"
DOI: 10.1002/marc.202000273
Abstract: Vitrimers are a class of polymeric materials with outstanding properties. Intramolecular substitution reactions lead to a dynamic exchange within the polymer network which enables thermoreversible stress relaxation in yet permanently crosslinked materials. In this paper,… read more here.
Keywords: urethane vitrimers; stress relaxation; acid mediated; mediated autocatalysis ... See more keywords
Robust, reprocessable and shape-memory vinylogous urethane vitrimer composites enhanced by sacrificial and self-catalysis Zn(II)–ligand bonds
Sign Up to like & getrecommendations! Published in 2020 at "Composites Science and Technology"
DOI: 10.1016/j.compscitech.2020.108062
Abstract: Abstract Endowing thermoset polymers with reinforcement, reprocessability and multi-functions shows great potential in practice. Herein, we describe the facile synthesis of robust, healable and reprocessable aminated silica/polydimethylsiloxane (PDMS) composites by engineering dynamic vinylogous urethane crosslinks… read more here.
Keywords: urethane crosslinks; vinylogous urethane; shape memory; robust reprocessable ... See more keywords