Release behavior of W/O/W-type microcapsule

Masumi Uehara, Yuuka Yoshinaga, Tomohiro Ogawa, Yasuyuki Maki, Hiroyuki Takeno, Takao Yamamoto, Kimio Ichikawa, Toshiaki Dobashi

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 被引用数 (Scopus)

抄録

We have prepared W/O/W-type microcapsules with polyureaurethane wall membrane and aqueous core containing methylene blue by means of the double emulsification method and the effect of the rate of agitation at the twice emulsification on the release of methylene blue to dispersing methanol was examined. The release curve was expressed fairly well by the streched exponential form: (Equation presented) where C(t) and Ceq are the concentrations of methylene blue in the dispersing methanol at time t and at the equilibrium state, respectively. The time constant τ increased and the exponent α decreased with increasing the rate of agitation at the second emulsification, whereas τ decreased and α was constant with increasing the rate of agitation at the first emulsification. These differences are discussed from a viewpoint of inhomogeneity of the microcapsule wall membrane.

本文言語英語
ホスト出版物のタイトルSilicon Science and Advanced Micro-Device Engineering II
出版社Trans Tech Publications Ltd
ページ55-60
ページ数6
ISBN(印刷版)9783037852859
DOI
出版ステータス出版済み - 2012
外部発表はい
イベント6th International Symposium on Silicon Science and 2nd International Conference on Advanced Micro-Device Engineering, ISSS and AMDE 2010 - Kiryu, 日本
継続期間: 12 9 201012 10 2010

出版物シリーズ

名前Key Engineering Materials
497
ISSN(印刷版)1013-9826
ISSN(電子版)1662-9795

その他

その他6th International Symposium on Silicon Science and 2nd International Conference on Advanced Micro-Device Engineering, ISSS and AMDE 2010
国/地域日本
CityKiryu
Period12/9/1012/10/10

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 材料力学
  • 機械工学

フィンガープリント

「Release behavior of W/O/W-type microcapsule」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル