화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2008년 봄 (05/09 ~ 05/10, 한양대학교(안산))
권호 12권 1호
발표분야 고분자
제목 Synthesis and Characterization of Thermosensitive Nanoparticles Based on PNIPAAM Core and Chitosan Shell Structure
초록 New thermosensitive nanogels, PNIPAAm-AA conjugated with low molecular weight water soluble chitosan(LMWSC), were designed and synthesized for the controlled release of the loaded drug. PNIPAAm nanogels containing carboxylic group on their surface was synthesized using emulsion polymerization. The particle size of synthesized nanogels was varied from 380 nm to 25 nm as temperature of the dispersed medium increased. LMWSC-conjugated nanogels of 2wt% MBA, crosslinking monomer, leaded to a stable aqueous dispersion at concentration of 1mg/1ml otherwise showed gel collapse temperature. The effect of temperature of the PNIPAAm chains were also studied by DLS and UV.
저자 정현, 허선행, 남정표, 김동곤, 정영일, 김양배, 장미경, 나재운
소속 순천대
키워드 Core-shell; LMWSC; Lower critical solution temperature; Thermosensitive
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