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Effect of tin on poly(L-lactic acid) pyrolysis
http://hdl.handle.net/10228/00006755
http://hdl.handle.net/10228/000067557049d37a-673c-4297-a118-64a0f8dc3081
名前 / ファイル | ライセンス | アクション |
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S0141-3910(03)00152-6.pdf (706.2 kB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||
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公開日 | 2018-05-10 | |||||||||||||||||
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 | Effect of tin on poly(L-lactic acid) pyrolysis | |||||||||||||||||
その他のタイトル | ||||||||||||||||||
その他のタイトル | Effect of Sn Atom on Poly(L-lactic acid) Pyrolysis | |||||||||||||||||
言語 | ||||||||||||||||||
言語 | eng | |||||||||||||||||
著者 |
西田, 治男
× 西田, 治男
WEKO
21961
× Mori, Tomokazu× Hoshihara, Shinya× Fan, Yujiang× 白井, 義人
WEKO
8065
× 遠藤, 剛 |
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抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | Tin 2-ethylhexanoate is an indispensable component of commercially available poly(L-lactic acid) (PLLA). However, the thermal degradation kinetics of PLLA containing Sn have not yet clearly been established; in particular, whether the degradation mechanism is a 1st-order or a random reaction. To clarify the effects of residual Sn on PLLA pyrolysis, PLLA samples with different Sn contents from 20 to 607 ppm were prepared and subjected to pyrolysis analysed with pyrolysis-gas chromatography/mass spectroscopy (Py-GC/MS) and thermogravimetry (TG). The pyrolysis of PLLA Sn-607 (Sn content: 607 ppm) with Py-GC/MS in the temperature range of 40–400 °C selectively produced lactides. In contrast, the pyrolysis of PLLA Sn-20 (Sn content: 20 ppm) was accompanied by the production of cyclic oligomers. The dynamic pyrolysis of PLLA-Sn samples by TG clearly indicated that with an increase in Sn content there was a shift to a lower degradation temperature range and a decrease in activation energy Ea. The kinetic analysis of the dynamic pyrolysis data indicates that the Sn-catalyzed pyrolysis starts through a random degradation behaviour and then shifts to a zero-order weight loss as the main process. Three reactions were put forward as being possible mechanisms of the zero-order weight loss; one being an unzipping reaction accompanying a random transesterification, the other two being the Sn-catalyzed pseudo-selective and selective lactide elimination reactions from random positions on a polymer chain. The kinetic parameter values obtained could be adequately explained for each degradation process. | |||||||||||||||||
書誌情報 |
Polymer Degradation and Stability 巻 81, 号 3, p. 515-523, 発行日 2003-07-02 |
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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/S0141-3910(03)00152-6 | |||||||||||||||||
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) 2003 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 | Poly(L-lactide) | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | PLLA | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Pyrolysis | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Thermal decomposition | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Kinetics | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Simulation | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Thermogravimetric analysis | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Random degradation | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | Zero-order reaction | |||||||||||||||||
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) | ||||||||||||||||||
10037595 | ||||||||||||||||||
連携ID | ||||||||||||||||||
6985 | ||||||||||||||||||
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, Fukuoka 820-8555, Japan | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Molecular Engineering Institute, Kinki University, Fukuoka 820-8555, Japan, Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, 820-8502, Japan | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Molecular Engineering Institute, Kinki University, Fukuoka 820-8555, Japan | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Molecular Engineering Institute, Kinki University, Fukuoka 820-8555, Japan, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka 808-0196, Japan | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka 808-0196, Japan | ||||||||||||||||||
著者所属 | ||||||||||||||||||
Molecular Engineering Institute, Kinki University, Fukuoka 820-8555, Japan, Faculty of Engineering, Yamagata University, Yamagata 992-8510, Japan |