2006年2月
Formation of biodegradable polyesters membranes via thermally induced phase separation
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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- 巻
- 39
- 号
- 2
- 開始ページ
- 144
- 終了ページ
- 153
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1252/jcej.39.144
- 出版者・発行元
- SOC CHEMICAL ENG JAPAN
Microfiltration membranes that can be composted after service were developed from biodegradable polyesters, poly(L-lactic acid) (PLLA) and poly(epsilon-caprolactone) (PCL). The membranes were formed via the thermally induced phase separation method. A 10 wt% PLLA solution in a mixed diluent of 1,4-dioxane and water (87:13 by weight) was prepared in a flat mold and quenched from 52 degrees C (4 degrees C above cloud point temperature) to 0 degrees C. After diluent extraction, the membrane separated yeast cells (6 mu m) from their suspensions. A PCL membrane formed by the same method did not reject yeast cells. PCL membranes formed by quenching a 16 wt% PCL solution to 0 degrees C and quenching a 10 wt% PCL solution to -196 degrees C did separate yeast cells from their suspensions. The permeation flux was much higher in the filtration of 1 kg.m(-3) yeast cell suspension with the PLLA and PCL membranes formed by quenching a 10 wt% PLLA or PCL solution to -196 degrees C than in the filtration with the PLLA membrane formed by quenching a 10 wt% PLLA solution to 0 degrees C. The higher flux would be due to the lower resistance of the membranes formed by liquid nitrogen quenching (-196 degrees C) and the mode of depth filtration. Porous biodegradable microfiltration membranes prepared from these polymers have the potential to serve as disposable filters in food and biochemical industries.
- リンク情報
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- DOI
- https://doi.org/10.1252/jcej.39.144
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=200902265298615440
- CiNii Articles
- http://ci.nii.ac.jp/naid/130000019244
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000235641500006&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1252/jcej.39.144
- ISSN : 0021-9592
- J-Global ID : 200902265298615440
- CiNii Articles ID : 130000019244
- Web of Science ID : WOS:000235641500006