화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2007년 가을 (10/26 ~ 10/27, 한국과학기술원)
권호 13권 2호, p.1369
발표분야 고분자
제목 Synthesis and characterization of pH sensitivePEG-b-PDPG block copolymer
초록 pH sensitive polymeric micelles can strengthen the anti-tumor efficiency of a drug by accumulating in the target area. In order to synthesize pH sensitive block copolymer, we synthesized PEG-b-PBLG(Poly Benzyl-L-Glutamate) via polymerization of N-carboxyanhydrides. According to substituting side groups by aminolysis, PEG-b-PDPG(Poly (N'-DiisoPropyl) ethyl-Glutamine) was synthesized. The chemical structure of PEG-b-PBLG and PEG-b-PDPG was characterized by 1H NMR spectroscopy. The molecular weights of the synthesized polymer was measured by a gel permeation chromatography (GPC). The pH sensitivity of polymeric micelles was determined by fluorescence using pyrene as a probe. The particle size of polymeric micelles was measured by dynamic light scattering measurements.
저자 한종권, 김민상, 이두성
소속 성균관대
키워드 pH sensitive; aminolysis; micelles; block copolymer
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