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Free-Standing Ion-Conductive Gels Based on Polymerizable Imidazolium Ionic Liquids
Tae Hui Kang(강태희) 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
A free-standing ion-conductive gel is formed by spontaneous self-assembly of the amphiphilic ionic liquids and the cross-linkable monomer 6-hexanediol diacrylate (HDODA) in a mixed solvent of 1-octene, 1-butanol, and water. The ionic conductivity of this ion gel is 24 mS cm<sup>-1</sup> at 33 °C. To enhance the mechanical strength of the ion gels, an acrylate ionic liquid was added, leading to significant morphological changes of the HDODA phase from spherical, ellipsoid, angular platelets to interconnected with increasing addition of an acrylate ionic liquid and consequent enhancement in the mechanical strength of the resulting ion gels. SAXS data reveal that the ion gels are composed of bicontinuous phase. The formation of the anisotropic HDODA structures upon introduction of the acrylate ionic liquid was accompanied by a change of the bicontinuous phase to be undulated, which increased the ionic path through the formed film, resulting in reduced ionic conductivity.
PCR법에 의한 박테리아의 동정 및 오존과 UV에 의한 제거 연구
오병수 ( O Byeong Su ),주설 ( Ju Seol ),김경숙 ( Kim Gyeong Sug ),강태희 ( Kang Tae Hui ),이지영 ( Lee Ji Yeong ),이혜영 ( Lee Hye Yeong ),강준원 ( Kang Jun Won ) 한국물환경학회 2004 한국물환경학회지 Vol.20 No.2
The purpose of this study was to monitor bacteria present in raw water and to investigate the effect of ozone, UV and combined ozone/UV processes for inactivating bacteria. Both polymerase chain reaction (PCR)-fragment length polymorphic analysis (PRA) and PCR-sequence analysis (PSA) were applied for the simultaneous analysis of numerous bacteria species present in each tested water, such as drinking water (DRW), drinking water source (DRWS) and sewage effluent water (SEW). According to the result, the number of detected bacteria species was zero in DRW, 58 in DRWS and 13 in SEW. After treatment of the each process, the ozone/UV process was the most successful for inactivating almost all bacteria. However, it was found that Flavobacterium sp., Pseudomonas sp. and Beta proteobacterium sp. had strong resistant to all tested processes, requiring further detailed study.