論文

査読有り
2006年2月

Formation of biodegradable polyesters membranes via thermally induced phase separation

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
  • T Tanaka
  • ,
  • T Tsuchiya
  • ,
  • H Takahashi
  • ,
  • M Taniguchi
  • ,
  • H Ohara
  • ,
  • DR Lloyd

39
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
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
  • DOI : 10.1252/jcej.39.144
  • ISSN : 0021-9592
  • J-Global ID : 200902265298615440
  • CiNii Articles ID : 130000019244
  • Web of Science ID : WOS:000235641500006

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