The present invention relates to a nanocomposite comprising a compound having an aliphatic hydrocarbon substituent and a tungsten oxide nanorod, a polymer composite comprising the same, and fibers and foams comprising the polymer composite. By including the nanocomposite in a predetermined amount, it is possible to provide the polymer composite having excellent elongation and photo-heating efficiency while exhibiting a predetermined range of mechanical strength.;COPYRIGHT KIPO 2020
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