@article{oai:nagasaki-u.repo.nii.ac.jp:00022104, author = {本九町, 卓 and 稲葉, 健 and 小椎尾, 謙 and 古川, 睦久}, issue = {69}, journal = {長崎大学工学部研究報告, Reports of the Faculty of Engineering, Nagasaki University}, month = {Nov}, note = {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., 長崎大学工学部研究報告 Vol.37(69) p.33-37, 2007}, pages = {33--37}, title = {コアシェル型多分岐性高分子の分子放出挙動}, volume = {37}, year = {2007} }