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  • 09월 08일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis and Characterization of Thermoresponsive Polymeric Hollow Nanospheres

등록일
2015년 8월 27일 15시 57분 52초
접수번호
0943
발표코드
POLY.P-58 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 16일 (금요일) 13:00~14:30
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
송경주, 정일두*
부산대학교 고분자공학과, Korea
During the last decade, polymer hollow microspheres have been interesting for their various applications, such as encapsulation for controlled release of drugs and enzymes, fillers, pigments, catalysts, and adsorption materials for sound. Currently, thermoresponsive polymer core-shell structures of nanometer dimensions have attracted great interest due to their potential applications. In this study, thermoresponsive polymeric hollow nanoparticles were synthesized from colloidal silica (CS) and poly(ethylene glycol) methyl ether-3-(triethoxysilyl)propyl isocyanate (PEGME-IPTES) as templates for hollow and a passage connecting the inside and outside of the hollow with NIPAAm. Colloidal silica was first synthesized using TEOS by sol-gel method. PEGME-IPTES was synthesized using a 3-(triethoxysilyl)propyl isocyanate (IPTES) with poly(ethylene glycol) methyl ether (PEGME) in the presence of dibutyltin dilaurate. The nanoparticles were prepared by initially coating silica with 3-methacryloxypropyltrimethoxysilane (MPS) and PEGME-IPTES, forming a shell by the polymerization of NIPAAm, then silica core and PEGME-IPTES were removed by etching with hydrofluoric acid. Thermoresponsive polymeric hollow nanoparticle was characterized by 1H NMR, 13C NMR, and FT-IR spectroscopies. The particle size of the colloidal silica was also confirmed by using DLS.

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