abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 03월 02일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Magnetic-Cored Dendrimers terminalized with Carboxyl and Amine groups for Cadmium and Chromium adsorption

등록일
2012년 2월 28일 14시 45분 41초
접수번호
1509
발표코드
POLY.P-81 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 25일 (수요일) 18:00~21:00
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
여인환, 박효숙, 장준원, 박재우1
한양대학교 건설환경공학과, Korea
1한양대학교 토목공학과, Korea
Two types of magnetic-cored dendrimer terminalized with carboxyl groups and amine groups were synthesized and evaluated for adsorption capacity of both cadmium and chromium. The samples were prepared in four steps: (1) preparation of magnetic-core with ferric chlroride and ferrous sulphate using coprecipitation method, (2) amino silanization of magnetic-core with 3-aminopropyltrimethoxysilane (3) growth of dendrimer branches with a repeating injection of ethylene diamine and methyl acrylate using michael addition, and (4) development of functional groups by ethylene diamine and glutaric acid. Transmission electron microscopy and X-ray diffraction measurement showed magnetic-cored dendrimer has magnetite core and 10-15 nm size. Fourier Transform Infrared Spectroscopy measurement showed various bonds in dendrimer such as Si-O, -NH2, -OH, C-H, C=O(amide) and Fe-O. ThermoGravimetric Analysis measurement showed growth of repeating units by dendrimer generation. Atomic Absorption Spectrophotometer showed amine terminalized magnetic-cored dendrimer could adsorb 30.3 mg/g of cadmium and carboxyl terminalized magnetic-cored dendrimer could adsorb 33.8 mg/g of chormium. In addition, dendrimer showed almost comparable adsorption capacity after five times recycle test.

상단으로