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Rodney S. Ruoff
다차원 탄소재료 연구단
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Poly(vinyl alcohol) Reinforced and Toughened with Poly(dopamine)-Treated Graphene Oxide, and Its Use for Humidity Sensing

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Title
Poly(vinyl alcohol) Reinforced and Toughened with Poly(dopamine)-Treated Graphene Oxide, and Its Use for Humidity Sensing
Author(s)
Hwang, SH; Kang, D; Rodney S Ruoff; Shin, HS; Park, YB
Publication Date
2014-07
Journal
ACS NANO, v.8, no.7, pp.6739 - 6747
Publisher
AMER CHEMICAL SOC
Abstract
Poly(dopamine)-treated graphene oxide/poly(vinyl alcohol) (“dG-O/PVA”) composite films were made and characterized. G-O was modified with poly(dopamine) in aqueous solution and then chemically reduced to yield poly(dopamine)-treated reduced G-O. A combination of hydrogen bonding, strong adhesion of poly(dopamine) at the interface of PVA and G-O sheets, and reinforcement by G-O resulted in increases in tensile modulus, ultimate tensile strength, and strain-to-failure by 39, 100, and 89%, respectively, at 0.5 wt % dG-O loading of the PVA. The dG-O serves as a moisture barrier for water-soluble PVA, and the dG-O/PVA composite films were shown to be effective humidity sensors over the relative humidity range 40100%.
URI
https://pr.ibs.re.kr/handle/8788114/1488
ISSN
1936-0851
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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