Hybridizing Poly(ε-caprolactone) and Plasmonic Titanium Nitride Nanoparticles for Broadband Photoresponsive Shape Memory Films

Satoshi Ishii; Koichiro Uto; Eri Niiyama; Mitsuhiro Ebara; Tadaaki Nagao

doi:10.1021/acsami.5b12658

Hybridizing Poly(ε-caprolactone) and Plasmonic Titanium Nitride Nanoparticles for Broadband Photoresponsive Shape Memory Films

ACS Appl Mater Interfaces. 2016 Mar 2;8(8):5634-40. doi: 10.1021/acsami.5b12658. Epub 2016 Feb 18.

Authors

Satoshi Ishii^{1

2}, Koichiro Uto^{1

3}, Eri Niiyama^{1

4}, Mitsuhiro Ebara¹, Tadaaki Nagao^{1

2}

Affiliations

¹ International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , Tsukuba, Ibaraki 305-0044, Japan.
² CREST, Japan Science and Technology Agency , Kawaguchi, Saitama 332-0012, Japan.
³ Department of Bioengineering, University of Washington , Seattle, Washington 98195, United States.
⁴ Graduate School of Pure and Applied Sciences, University of Tsukuba , Tsukuba, Ibaraki 305-8571, Japan.

PMID: 26890263
DOI: 10.1021/acsami.5b12658

Abstract

Plasmonic nanoparticles can confine light in nanoscale and locally heat the surrounding. Here we use titanium nitride (TiN) nanoparticles as broadband plasmonic light absorbers and synthesized a highly photoresponsive hybrid cross-linked polymer from shape memory polymer poly(ε-caprolactone) (PCL). The TiN-PCL hybrid is responsive to sunlight and the threshold irradiance was among the lowest when compared with other photoresponsive shape memory polymers studied previously. Sunlight heating with TiN NPs can be applied to other heat responsive smart polymers, thereby contributing to energy-saving smart polymers research for a sustainable society.

Keywords: nanoparticle; photoresponsive polymer; photothermal effect; plasmonic resonance; shape memory polymer; sunlight.

Publication types

Research Support, Non-U.S. Gov't