“COFFEE RING” FORMATION DYNAMICS ON MOLECULARLY SMOOTH SUBSTRATES WITH VARYING RECEDING CONTACT ANGL

来源 :The 6th International Symposium on Polymer Chemistry(2014年第六 | 被引量 : 0次 | 上传用户：wwxx10086

【摘要】

：

A systematic study of "coffee-ring" formation dynamics was carried out using chemically and physically well-controlled substrates and colloids.1 Clean silicon w

【作者】

：

Wei Chen Lanhe Zhang Yen Nguyen

【机构】

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ChemistryDepartment,MountHolyokeCollege,SouthHadley,MA01075,USA

【出处】

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The 6th International Symposium on Polymer Chemistry(2014年第六

【发表日期】

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2014年6期

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A systematic study of "coffee-ring" formation dynamics was carried out using chemically and physically well-controlled substrates and colloids.1 Clean silicon wafers were reacted with tris(trimethylsiloxyl)chlorosilane in the vapor phase to yield molecularly smooth substrates with advancing and receding contact angles up to 84°/74° (θA/θR) and a constant hysteresis of 12 ± 2°.

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“COFFEE RING” FORMATION DYNAMICS ON MOLECULARLY SMOOTH SUBSTRATES WITH VARYING RECEDING CONTACT ANGL

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