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Effects of MgO Catalyst on Depolymerization of Poly-L-lactic Acid to L,L-Lactide
http://hdl.handle.net/10228/00006745
http://hdl.handle.net/10228/000067458cf074ee-a05c-4a4c-9c1b-effb86e07f23
名前 / ファイル | ライセンス | アクション |
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j.polymdegradstab.2007.03.014.pdf (375.3 kB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||
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公開日 | 2018-05-08 | |||||||||||||||||
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 | journal article | |||||||||||||||||
タイトル | ||||||||||||||||||
タイトル | Effects of MgO Catalyst on Depolymerization of Poly-L-lactic Acid to L,L-Lactide | |||||||||||||||||
言語 | ||||||||||||||||||
言語 | jpn | |||||||||||||||||
著者 |
Motoyama, Toru
× Motoyama, Toru× Tsukegi, Takayuki× 白井, 義人
WEKO
8065
× 西田, 治男
WEKO
21961
× 遠藤, 剛 |
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抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | To control the depolymerization of poly-L-lactic acid (PLLA) into L,L-lactide, effects of altering the physical and chemical properties of magnesium oxide (MgO) on its ability as a catalyst were investigated. Four kinds of MgO particles: MgO-heavy, 0.2, 0.05, and 0.01μm, were used having primary particles of different dimensions, surface areas, and chemical structures/species. Thermo-gravimetric profiles of PLLA/MgO composites shifted into a lower temperature range due to an increase in the catalytic surface area resulting from a decrease in the dimensions of the MgO particles. However, decreasing the dimensions caused frequent side reactions with unfavorable products: cyclic oligomers and meso-lactide, due to the presence of different chemical structures/species. Heat treatment of the MgO particles effectively suppressed the oligomer production and enhanced the L,L-lactide production, but also accelerated the meso-lactide production at lower temperatures. These results indicate that the surface properties of MgO considerably influence the depolymerization of PLLA, with the catalytic behavior of MgO controllable by heat treatment and selection of the depolymerization conditions. | |||||||||||||||||
書誌情報 |
Polymer Degradation and Stability 巻 92, 号 7, p. 1350-1358, 発行日 2007-03-24 |
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出版社 | ||||||||||||||||||
出版者 | Elsevier | |||||||||||||||||
DOI | ||||||||||||||||||
関連タイプ | isVersionOf | |||||||||||||||||
識別子タイプ | DOI | |||||||||||||||||
関連識別子 | https://doi.org/10.1016/j.polymdegradstab.2007.03.014 | |||||||||||||||||
ISSN | ||||||||||||||||||
収録物識別子タイプ | ISSN | |||||||||||||||||
収録物識別子 | 0141-3910 | |||||||||||||||||
著作権関連情報 | ||||||||||||||||||
権利情報 | Copyright (c) 2007 Elsevier Ltd. All rights reserved. | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Poly(l-lactic acid) | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Thermal degradation | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Depolymerization | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Magnesium oxide | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Catalyst | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Feedstock recycling | |||||||||||||||||
出版タイプ | ||||||||||||||||||
出版タイプ | AM | |||||||||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||
査読の有無 | ||||||||||||||||||
値 | yes | |||||||||||||||||
研究者情報 | ||||||||||||||||||
https://hyokadb02.jimu.kyutech.ac.jp/html/397_ja.html | ||||||||||||||||||
論文ID(連携) | ||||||||||||||||||
10037528 | ||||||||||||||||||
連携ID | ||||||||||||||||||
6981 | ||||||||||||||||||
資料タイプ | ||||||||||||||||||
内容記述タイプ | Other | |||||||||||||||||
内容記述 | Journal Article | |||||||||||||||||
著者所属 | ||||||||||||||||||
Molecular Engineering Institute, Kinki University 11-6 Kayanomori, Iizuka, Fukuoka 820-8555, Japan, Kyushu Institute of Technology 2-4 Hibikino, Wakamatsu-ku, Kitakyushu-shi, Fukuoka 808-0196, Japan | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Molecular Engineering Institute, Kinki University 11-6 Kayanomori, Iizuka, Fukuoka 820-8555, Japan, Kyushu Institute of Technology 2-4 Hibikino, Wakamatsu-ku, Kitakyushu-shi, Fukuoka 808-0196, Japan | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Kyushu Institute of Technology 2-4 Hibikino, Wakamatsu-ku, Kitakyushu-shi, Fukuoka 808-0196, Japan | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Molecular Engineering Institute, Kinki University 11-6 Kayanomori, Iizuka, Fukuoka 820-8555, Japan | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Molecular Engineering Institute, Kinki University 11-6 Kayanomori, Iizuka, Fukuoka 820-8555, Japan |