Effect of gold and graphene oxide nanoparticles on the thermo- and photo-actuation of monodomain liquid crystal elastomers

Jesús‐Téllez, Marco A. De; Felix-Serrano, Isaura; Rodríguez-González, Rosa Julia; Navarro-Rodríguez, Dámaso; Larios-López, Leticia

doi:10.1016/j.polymer.2020.122837

Cited by 5 publications

(1 citation statement)

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“…Among the variety of SMM, the shape memory polymers (SMP) have attracted great interest for their easy shaping and high recoverable strain as well as for their low density, versatility (foams, elastomers, compact solids, etc. ), tunable properties, and low cost 1–3 . The epoxy resin‐based ones display some other distinctive properties such as excellent thermal and chemical resistances 4 .…”

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical performance of aDGEBAepoxyresin‐basedshape memory polymer by introducing graphene oxide via covalent linking

Romero-Zúñiga

Navarro-Rodríguez

Treviño-Martínez

2021

J of Applied Polymer Sci

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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 wt.%) 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.

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Section: Introductionmentioning

confidence: 99%