教師資料查詢 | 類別: 期刊論文 | 教師: 曾琇瑱 Tseng Shio-jenn (瀏覽個人網頁)

標題:Influence of polyelectrolyte shape on its sedimentation behavior: effect of relaxation electric field
學年103
學期1
出版(發表)日期2014/11/01
作品名稱Influence of polyelectrolyte shape on its sedimentation behavior: effect of relaxation electric field
作品名稱(其他語言)
著者Yeh, Pin-Hua; Hsu, Jyh-Ping; Tseng, Shiojenn
單位淡江大學數學學系
出版者Cambridge: R S C Publications
著錄名稱、卷期、頁數Soft Matter 10(44), pp.8864-8874
摘要The sedimentation of an isolated, charged polyelectrolyte (PE) subjected to an applied field is modeled theoretically, taking into account the variation of its shape. In particular, the effects of double-layer relaxation, effective charge density, and strength of the induced relaxation electric field are examined. We show that the interaction of these effects yields complex and interesting sedimentation behaviors. For example, the behavior of the electric force acting on a loosely structured PE can be different from that on a compactly structured one; the former is dominated mainly by the convective fluid flow. For thick double layers, electric force has a local maximum as the Reynolds number varies, but tends to increase monotonically with increasing Reynolds number if the layer is thin. The drag factor is found to behave differently from literature results. The shape of a PE significantly influences its sedimentation behavior by affecting the amount of counterions attracted to its interior and the associated local electric field. Interestingly, a more stretched PE has a higher effective charge density but experiences a weaker electric force.
關鍵字
語言英文
ISSN1744-6848
期刊性質國外
收錄於SCI;
產學合作
通訊作者Hsu, Jyh-Ping; Tseng, Shiojenn
審稿制度
國別英國
公開徵稿
出版型式,電子版,紙本
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