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  • 03월 05일 13시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

대한화학회 제105회 학술발표회 및 총회 Surface functionalization of multiwalled carbon nanotubes with ammonium based ionic liquids

등록일
2010년 2월 12일 10시 46분 19초
접수번호
0133
발표코드
39P181포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅳ>
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
NANJUNDAN ASHOK KUMAR, 정연태
부경대학교 이미지시스템공학과, Korea
Carbon based nanomaterials have gained intense attention from both academics and industries due to their extraordinary properties. Their use for fabrication of reinforced polymer composites, field-emission displays, hydrogen storage are being envisaged and investigated extensively. The present study reports the functionalization of multiwalled carbon nanotubes (MWNTs) with novel ammonium based ionic liquids. Acid oxidized MWNTs were first acylated using thionyl chloride and further functionalized with choline dihydrogen phosphate, a novel materials. The resulting ionic liquid functionalized act as dispersing agents to well disperse CNTs in organic solvents. The covalent route reported here to functionalize MWNTs with ionic liquid through chemical grafting technique has many advantages. The nanocomposites were well characterized with the necessary analytical techniques namely field emission scanning electron microscopy (FE-SEM) and high resolution transmission electron microscopy (HR-TEM). The changes in surface functional groups were analyzed using X-Ray photoemission spectroscopy (XPS) and attenuated total reflectance infrared spectroscopy (ATR-IR). The microscopic images revealed that the covalent functionalization procedure was effective and provided a firm coating of the soft material on nanotube side-walls. The coating of CNTs with the novel ionic liquid enhanced the thermal properties of the complex when compared to that of pristine nanotubes.

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