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グリコール酸エステル結合を有したポリテトラメチレングリコールの合成とそれを用いた分解性ポリウレタン材料の合成と性質
http://hdl.handle.net/10098/10009
http://hdl.handle.net/10098/10009fc2f0c19-c2d6-47ec-8fe6-a27c5d9aa79d
名前 / ファイル | ライセンス | アクション |
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10098-1009.pdf (1.9 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2016-10-31 | |||||
タイトル | ||||||
タイトル | グリコール酸エステル結合を有したポリテトラメチレングリコールの合成とそれを用いた分解性ポリウレタン材料の合成と性質 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Synthesis of Glycolate-Containing Poly(tetramethylene glycol)s and Properties of Degradable Polyurethanes Prepared Therefrom | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ester Bond | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Glycolic Acid | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Polyol | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Polyurethane | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Degradable Polymer | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Chemical Recycling | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
小笹, 太寛
× 小笹, 太寛× 橋本, 保× 漆崎, 美智遠× 阪口, 壽一 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Glycolate-containingp oly(tetramethyleneg lycol)s (PTHF-GA-OH) were prepared by the reaction of bifunctional living poly(tetrahydrofuran) with lithium bromide followed by the substitution reaction of the produced bromide end groups with potassium glycolate. The obtained polyols were reacted with 4,4'-diphenylmethane diisocyanate and then with 1,4-butanediol to give a polyurethane with degradable ester moieties. The treatment of the obtained polyurethane (PTHF-GA-BD-PU) with potassium hydroxide in tetrahydrofuran/ethano(l9 /1 v/v) solvent in the presence of a small amount of water caused hydrolysis reaction of the glycolate ester linkages to give the mixture of PTMG and the urethane oligomers. The extraction of PTMG with methylene chloride from the mixture resulted in the recovery of PTMG in over 70% yield based on the poly(tetrahydrofuran)s egments of PTHF-GA-BD-PU.E nzymatic degradation of PTHF-GA-BD-PU was carried out with lipase as a catalyst. The heterogeneous reaction with film specimens in water using phosphate buffer solution (pH 7.4) at 37 °C caused the decrease in the molecular weight of PTHF-GA-BD-PU. This is probably due to the lipase-catalyzed hydrolysis of the glycolate ester groups of PTHF-GA-BD-PU. | |||||
書誌情報 |
福井大学大学院工学研究科研究報告 巻 65, p. 11-21, 発行日 2016-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18821871 | |||||
書誌レコードID | ||||||
識別子タイプ | NCID | |||||
関連識別子 | TD00007600 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |