화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2005년 봄 (04/14 ~ 04/15, 전경련회관)
권호 30권 1호, p.552
발표분야 고분자 구조 및 물성
제목 Stable Organic/Inorganic Porous Nanocomposite Coatings having Water-Repellency by Electrostatic Self-Assembly
초록 Herein we present the fabrication of a porous, stable organic-inorganic film having a water-repellency by using the layer-by-layer (LBL) deposition process with poly(allylamine hydrochloride) (PAH) and poly(acrylic acid) (PAA)-coated ZrO2 nanoparticles(그림1). The porous structuring of hybrid films for hydrophobicity was controlled by the number of deposition cycles using PAA-coated 100nm ZrO2 nanoparticles, which also relies on the particle size and the prelayer with PAH and PAA. The water contact angles of these films were successfully increased with the deposition cycles. The chemical state of the outermost surface of hybrid films were confirmed by angle resolved X-ray photoelectron microscopy, in which alkyl backbone of PAH is exposed to the surface. Moreover, the chemical stability of an organic-inorganic nanocomposite film was greatly increased by heat-induced crosslinking reaction of the film.



그림1. The Porous organic/inorganic nanocomposite film and a water drop on this film.

Acknowledgement
This work was supported by grant (code #: 04K1501-01310 ) from ‘center for Nanostructural Materials Technology’ under ‘the 21st Century Frontier R&D Programs’ of the Ministry of Science and Technology, the National Research Laboratory Program of the Ministry of Science and Technology of Korea, and the Brain Korea 21 Program of the Korean Ministry of Education.
저자 한중탁, Yanli Zheng, 조정호, Xurong Xu, 조길원
소속 포항공과대
키워드 water-repellency; electrostatic self-assembly; organic/inorganic
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