Extensional viscosity of polystyrene solutions in dilute region

Shinichi Kitade, Yoshiaki Takahashi, Ichiro Noda, Ming Long Yao

研究成果: Contribution to journalArticle査読

抄録

Extensional viscosities η e(ε•) of polystyrenes (PS) with high molecular weights in benzyl butyl phthalate (BBP; a good solvent for PS) and dioctyl phthalate (DOP; a θ solvent for PS) were studied in the dilute region for viscosity as a function of the extensional rate with an opposing jets extensional rheometer. The η e(ε•) data obtained with use of different orifice geometries agree with each other within experimental errors. The extensional viscosity at low ε• limit, η 0e is about three times larger than the corresponding zero - shear viscosity in accordance with Trouton's rule. In high ε• region, the extensional - thickening was observed for all the solutions. The critical extensional rate ε• * at which the η e(ε•) deviates from η 0e is confirmed to be related to the longest relaxation time of the solutions.

本文言語英語
ページ(範囲)99-105
ページ数7
ジャーナルNihon Reoroji Gakkaishi
25
2
DOI
出版ステータス出版済み - 1997
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「Extensional viscosity of polystyrene solutions in dilute region」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