DSpace university logo mark
Advanced Search
Japanese | English 

NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Engineering > Bulletin > Reports of the Faculty of Engineering, Nagasaki University > Volume 37, No. 69 >


File Description SizeFormat
37_69_06.pdf458.37 kBAdobe PDFView/Open

Title: コアシェル型多分岐性高分子の分子放出挙動
Other Titles: Molecular Release Behavior of Core-shell Type Hyperbranched Polymer
Authors: 本九町, 卓 / 稲葉, 健 / 小椎尾, 謙 / 古川, 睦久
Authors (alternative): Motokucho, Suguru / Inaba, Takeshi / Kojio, Ken / Furukawa, Mutsuhisa
Issue Date: Nov-2007
Publisher: 長崎大学工学部
Citation: 長崎大学工学部研究報告 Vol.37(69) p.33-37, 2007
Abstract: Polyglycerol-polyethylene imine (PGL-PEI) was synthesized from glycidol and polyethylene imine (PEI) as a core-shell type hyperbranched polymer. PGL-PEI was characterized by 1H, 13C nuclear magnetic resonance (1H, 13C-NMR) spectroscopy, gel permeation chromatography (GPC). Using benzylcinamate (BC) as a guest molecule, release behavior of PGL-PEI was investigated by ultraviolet visible (UV-vis) spectroscopy. The 13C-NMR spectrum is complicated and suggests a highly branched structure for the PGL-PEI. And GPC profile of PGL-PEI gave a unimodal profile. These results suggest that the PGL-PEI was successfully prepared by the monomer slow addition method. To confirm the PGL-PEI release behavior by UV-vis measurement, the PGL-PEI after loading BC was dissolved in water at the pH 10.01. For UV-vis spectra of B-band of BC decreased with pH decreasing. We demonstrated the PGL-PEI successfully shows release behavior.
Keywords: hyperbranched polymer / stimuli-responsible polymer / capture-release behavior
URI: http://hdl.handle.net/10069/9462
Relational Links: http://www.lb.nagasaki-u.ac.jp/reports/kougaku/preview.php?id=52
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 37, No. 69

Citable URI : http://hdl.handle.net/10069/9462

All items in NAOSITE are protected by copyright, with all rights reserved.


Valid XHTML 1.0! Copyright © 2006-2015 Nagasaki University Library - Feedback Powerd by DSpace