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제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Preparation of compressible polymer monoliths that contain mesopores capable of rapid oil–water separation

2019년 8월 21일 17시 32분 47초
POLY.P-26 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 18일 (금요일) 11:00~12:30
Polymer Chemistry
저자 및
Ji Ae Chae, Hyungwoo Kim*
School of polymer science and engineering, Chonnam National University, Korea
This paper describes the design of mesoporous polymer monoliths via a bottom-up approach which are compressible as a biological sponge and provide the rapid separation of oil–water mixtures. The monolithic networks can be prepared in a large scale by a facile condensation polymerization under non-agitated conditions, and contain cyanovinylene repeating units that give rise to a self-assembled fibrous structure and intrinsic mesopores without the need for a template. The sponge-like, polymer network readily absorbed considerable amounts of diverse organic solvents within 60 sec due to the internal designed pores, while excluding water. Most of the absorbates were removed from the wet materials by simply squeezing by hand, and additional washing and drying completely regenerated the original state of materials for reuse. In particular, we observed that the intrinsic mesoporosity enhanced absorption properties of the monoliths when compared with microporous, spongy monolith or melamine foam, and thus demonstrated the rapid, selective separation of a model oil spill under water or on top of water.