화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2017년 가을 (10/11 ~ 10/13, 제주컨벤션센터)
권호 42권 2호
발표분야 고분자가공/복합재료
제목 Facile Fabrication of Highly Porous Composite Microgel with Boron Nitride Nanotubes
초록 Recent researches on boron nitride materials as efficient catalysts are drawing a growing attention in the fields of industrial catalysis. However, boron nitride materials with high specific area, which is critical to improve the catalytic efficiency, have rarely been reported due to difficulty in preparation of stable dispersions of hexagonal boron nitride (h-BN) and boron nitride nanotube (BNNT). In this presentation, we report a simple way to disperse BNNTs with poly(4-vinylpyridine) (P4VP) in an organic solvent, which instantaneously forms porous microstructure during freeze and vacuum dry process. Experimental parameters such as relative concentration of P4VP and BNNTs, crosslinking degree of P4VP by dibromobutane, and crystal size of frozen solvent during freeze-dry are optimized in order to prepare BNNT migrogels with high porosity and mechanical strength.
저자 임홍진1, 김범준1, 장세규2
소속 1한국과학기술원, 2한국과학기술(연)
키워드 boron nitride nanotube; colloidal dispersion; microgel; non-metal catalyst; freeze-drying
E-Mail segyu.jang@kist.re.kr