지난 8월 19일부터 23일까지 미국 American Chemical Society 학회가 있었습니다.


본 연구실에서는 교수님을 포함한 이지환, 도창우 연구원이 참여를 하였습니다.


교수님께서 구두 발표하신 내용의 초록은 아래와 같습니다.


제목: Non-covalent functionalization of single-wall carbon nanotubes by in situ polymerization of micelles

초록:
We developed a new type of non-covalently (no covalent bonding between the dispersants and SWNTs) functionalized and individually isolated SWNTs (p-SWNT) that are readily re-dispersible (by only 10 minutes of mild vortex mixing) in water even after freeze-drying and stable for months long time period. This was achieved by 1) dispersing SWNTs in water using cationic surfactants,Cetyltrimethylammonium
4-vinylbenzoate (CTVB), which have polymerizable counterions (VB- ions), and 2) permanently fixing the surfactant layer on the SWNTs by polymerizing the counterions. The small-angle neutron scattering, AFM and UV-vis-NIR measurements show that the p-SWNT exists in isolated form, being encapsulated by a cylindrical surfactant monolayer. The water-redispersible isolated p-SWNT may make it possible to prepare highly controlled dispersions of SWNTs in water and allow for further processing in various practical applications. Support from the BAERI program of the ministry of science and technology of Korea.

발표분과: Surfactant Self-Assembly
시간, 장소, 방법: 8:30 AM-12:05 PM, Tuesday, August 21, 2007 BCEC -- 153B, Oral