論文

査読有り
2016年12月

Rapid Phase Separation in Aqueous Solution of Temperature-Sensitive Poly(N,N-diethylacrylamide)

MACROMOLECULAR CHEMISTRY AND PHYSICS
  • Mitsuhiro Matsumoto
  • ,
  • Ryo Wakabayashi
  • ,
  • Takanori Tada
  • ,
  • Taka-Aki Asoh
  • ,
  • Tatsuya Shoji
  • ,
  • Noboru Kitamura
  • ,
  • Yasuyuki Tsuboi

217
23
開始ページ
2576
終了ページ
2583
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1002/macp.201600239
出版者・発行元
WILEY-V C H VERLAG GMBH

The dynamic phase separation behavior in aqueous solutions of poly(N,N-diethylacrylamide)(PDEA), which is a representative thermoresponsive polymer, is studied using a laser temperature-jump technique combined with transient photometry, with which the time constant for phase separation can be determined. Two components of the time constant (tau(fast) and tau(slow)) are clearly observed irrespective of the polymer concentration or molecular weight of the PDEA. Such a fast phase separation component (tau(fast)) has never been observed in poly(N-isopropylacrylamide) (PNIPAM) systems. Furthermore, the slow phase separation process of PDEA is faster than that in a PNIPAM system. It is shown that the fast phase separation process for PDEA originates from polymer aggregates formed even below the cloud point. The phase separation mechanism of PDEA is similar to that of poly (alkyl vinyl ether), rather than PNIPAM.

Web of Science ® 被引用回数 : 10

リンク情報
DOI
https://doi.org/10.1002/macp.201600239
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000389123000002&DestApp=WOS_CPL
URL
http://orcid.org/0000-0003-0748-8355

エクスポート
BibTeX RIS