| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_콜로이드·계면화학 |
| 제목 |
Stabilization and Gelation of Pickering Emulsions with Amphiphilic Janus Nanoplatelets |
| 초록 |
Janus particles, which are unique biphasic colloids with distinct physicochemical properties, have been widely used as Pickering emulsion stabilizers. In principle, the stability of Pickering emulsions is determined by interfacial energy which is related to particle geometry and surface wettability. Especially, compared to other shapes, platelet-like Janus particles can exhibit an ideal interfacial adhesion for stabilization of Pickering emulsion drops. For this, we synthesized amphiphilic Janus nanoplatelets(ANPLs) by sequence of surface modification and SI-ARGET ATRP which enabling give asymmetric properties on each surface of the platelets. The Pickering emulsion stabilized with ANPLs showed surprisingly improved stability and exhibited gel-like behavior due to interdrop hydrogen bonding and hydrophobic interaction even under harsh conditions. Finally, we demonstrated that the ANPLs can be used as a promising platelet surfactant to realize ideal wetting at oil-water interface. |
| 저자 |
황재민1, 이진용2, 성민철1, 김지은2, 김진웅1
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| 소속 |
1성균관대, 2한양대 |
| 키워드 |
amphiphilic Janus nanoplatelets; Pickering emulsion; zirconium phosphate; ATRP
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| E-Mail |
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