Romero-Zuniga, Gabriela Yolotzin published the artcileEnhanced mechanical performance of a DGEBA epoxy resin-based shape memory polymer by introducing graphene oxide via covalent linking, Recommanded Product: 4,4-Diaminodicyclohexyl methane, the publication is Journal of Applied Polymer Science (2022), 139(2), 51467, database is CAplus.
Shape memory polymers (SMP) are prepared, via dual thiol-epoxy/thiol-ene reactions, from diglycidyl ether of bisphenol A (DGEBA), a trithiol (TMP), a tetraallyl amine (TAA), and small amounts (0.1-0.5 weight%) of graphene oxide either pristine (GO) or functionalized with methacrylate groups (GOM). The incorporation of GOM to the epoxy resin network permits a good load transfer, which is reflected in improved properties such as Young modulus (from 220 to 519 MPa), tensile strength (from 46.3 to 69.2 MPa), Izod impact strength (from 0.051 to 0.42 J/mm), torque (from 0.008 to 0.031 Nm), and glass transition temperature (from 75 to 105°C). Such improvement in properties is attributed to the incorporation of GOM via covalent linking, which is a good strategy for improving polymer-particle interaction and particle dispersion. The epoxy-based SMP also show high storage modulus (up to 2.36 GPa) and high deformation capacity, which are reflected in good shape fixity (between 97% and 100%) and thermo-induced shape recovery (between 97% to 99.7%) behaviors in flexion mode tests.
Journal of Applied Polymer Science published new progress about 1761-71-3. 1761-71-3 belongs to quinuclidine, auxiliary class Ploymers, name is 4,4-Diaminodicyclohexyl methane, and the molecular formula is C13H26N2, Recommanded Product: 4,4-Diaminodicyclohexyl methane.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider