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NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Engineering > Bulletin > Reports of the Faculty of Engineering, Nagasaki University > Volume 30, No. 55 >

リビングニトロキシルラジカル末端ウレタンプレポリマーによるステアリルアクリレートの重合とその性質


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Title: リビングニトロキシルラジカル末端ウレタンプレポリマーによるステアリルアクリレートの重合とその性質
Other Titles: Polymerization and Properties of Stearyl Acrylate by Living Nitroxyl Radical-terminated Urethane Prepolymers
Authors: 本川, 慎二 / 古川, 睦久
Authors (alternative): Motokawa, Shinji / Furukawa, Mutsuhisa
Issue Date: Jul-2000
Citation: 長崎大学工学部研究報告 Vol.30(55) p.265-271, 2000
Abstract: 2,2,6,6-Tetramethylpiperidine-1-oxyl (TEMPO)-terminated prepolymers (TPs) were synthesized by reaction of 4-hydroxy-TEMPO and poly (oxytetramethylene) glycol (PTMG; Mn=1000,3000) with isocyanate groups. TPs were characterized by means of FT-IR, ^1H-NMR, and ESR. Since ESR spectra of TPs displayed a typical three signals based on TEMPO residues, it is found that TPs have the living nitroxyl radical. Stearyl acrylate (SAA) was polymerized by TPs with BPO as an initiator. Properties of the obtained block copolymers were investigated by use of 1 H-NMR spectrometer, GPC, viscometer, DSC, and dynamic viscoelastic tester. The obtained block copolymers were (SAA) n-PU-(SAA) n and a small amount of SAA homopolymer. The properties of these block polymers were affected with molecular weight of PTMG and concentration of SAA.
URI: http://hdl.handle.net/10069/5127
ISSN: 02860902
Type: Departmental Bulletin Paper
Appears in Collections:Volume 30, No. 55

Citable URI : http://hdl.handle.net/10069/5127

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