Shape-memory polymer composites selectively responsive to near-infrared lights of two wavelengths

Tianyu Fang, Shunping Chen, Liang Fang, Zhongzi Xu, Chunhua Lu

Research output: Contribution to conferencePaperpeer-review

Abstract

Rare earth organic complexes of Yb(TTA)2AAPhen and Nd(TTA)2AAPhen were reported here as selective photothermal fillers to near infrared (NIR) lights of 980 and 808 nm, respectively. The reactive ligand of acrylic acid (AA) containing double bonds was expected to facilitate the powder dispersion in poly [ethylene-ran-(vinyl acetate)] (EVA) as a thermally-induced shape-memory polymer during the UV curing. The powders absorbed the NIR lights with certain wavelengths and converted the light energy into heat, indirectly increasing the temperature of the EVA composites. Their full shape recoveries were triggered when the temperature went beyond the switching temperature. This work introduced an approach to make use of reactive ligands to facilitate the dispersion of photothermal fillers in shape-memory polymer composites, and correspondingly provided them with the shape-memory capability upon certain NIR lights.

Original languageEnglish
StatePublished - 2017
Event21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China
Duration: 20 Aug 201725 Aug 2017

Conference

Conference21st International Conference on Composite Materials, ICCM 2017
Country/TerritoryChina
CityXi'an
Period20/08/1725/08/17

Keywords

  • Functional polymer composites
  • Near-infrared light
  • Rare earth organic complexes
  • Shape-memory polymer
  • Smart materials

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