Influence of Polymer Chain Orientation on Interfacial Tension Measurement with DDRM Simulated by Dissipative Particle Dynamics

Chem. J. Chinese Universities

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Influence of Polymer Chain Orientation on Interfacial Tension Measurement with DDRM Simulated by Dissipative Particle Dynamics

MAO Wei, KONG Bin, YANG Xiao-Zhen*

State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China

Received:2007-09-28 Revised:1900-01-01 Online:2008-05-10 Published:2008-05-10
Contact: YANG Xiao-Zhen

Abstract

Abstract: When the deformed drop retraction method(DDRM) is used to measure interfacial tension, the elastic relaxation of polymer chain should be faster than the ellipsoidal droplet retraction. We investigated the influence of polymer chain orientation during the retraction processes using DPD method. The result indicates that the influence of orientation is related to the direction of chain orientation. If the direction of chain orientation is parallel to the fluid direction, the measurement of the interfacial tension clearly deviates from the standard, but if it is perpendicular to the fluid direction, the measurement has nearly no deviation.

Key words: Dissipative particle dynamics, Polymer chain orientation, Interfacial tension, Deformed Drop Retraction Method(DDRM)

CLC Number:

O631

TrendMD:

MAO Wei, KONG Bin, YANG Xiao-Zhen*. Influence of Polymer Chain Orientation on Interfacial Tension Measurement with DDRM Simulated by Dissipative Particle Dynamics [J]. Chem. J. Chinese Universities, doi: .

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Influence of Polymer Chain Orientation on Interfacial Tension Measurement with DDRM Simulated by Dissipative Particle Dynamics

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