Dynamics of hole growth in dewetting polystyrene films

C. Neto; K. Jacobs

doi:10.1016/j.physa.2004.03.049

Dynamics of hole growth in dewetting polystyrene films

C. Neto^*, K. Jacobs

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

31 Citations (Scopus)

Abstract

We describe experiments, based on optical and atomic force microscopy, aimed at characterising the growth of nucleated holes in polystyrene films. Circular nucleated holes develop upon dewetting in thick films, and they grow uniformly with time until coalescence with neighbouring holes occurs. Their growth rate follows a model that includes viscous dissipation in the rim and slippage on the substrate. Under certain conditions, however, nucleated holes in very thin films grow uniformly only up to a certain threshold value, beyond which a cascade pattern called "satellite holes" is observed. This pattern is the result of the interplay between the disjoining and Laplace pressure.

Original language	English
Pages (from-to)	66-71
Number of pages	6
Journal	Physica A: Statistical Mechanics and its Applications
Volume	339
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physa.2004.03.049
Publication status	Published - 1 Aug 2004
Event	Proceedings of the International Conference New Materials - Canberra, Vic., Australia Duration: 3 Nov 2003 → 7 Nov 2003

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10.1016/j.physa.2004.03.049

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title = "Dynamics of hole growth in dewetting polystyrene films",

abstract = "We describe experiments, based on optical and atomic force microscopy, aimed at characterising the growth of nucleated holes in polystyrene films. Circular nucleated holes develop upon dewetting in thick films, and they grow uniformly with time until coalescence with neighbouring holes occurs. Their growth rate follows a model that includes viscous dissipation in the rim and slippage on the substrate. Under certain conditions, however, nucleated holes in very thin films grow uniformly only up to a certain threshold value, beyond which a cascade pattern called {"}satellite holes{"} is observed. This pattern is the result of the interplay between the disjoining and Laplace pressure.",

keywords = "AFM, Dewetting, Structure formation, Thin polymer films",

author = "C. Neto and K. Jacobs",

year = "2004",

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doi = "10.1016/j.physa.2004.03.049",

language = "English",

volume = "339",

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journal = "Physica A: Statistical Mechanics and its Applications",

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note = "Proceedings of the International Conference New Materials ; Conference date: 03-11-2003 Through 07-11-2003",

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TY - JOUR

T1 - Dynamics of hole growth in dewetting polystyrene films

AU - Neto, C.

AU - Jacobs, K.

PY - 2004/8/1

Y1 - 2004/8/1

N2 - We describe experiments, based on optical and atomic force microscopy, aimed at characterising the growth of nucleated holes in polystyrene films. Circular nucleated holes develop upon dewetting in thick films, and they grow uniformly with time until coalescence with neighbouring holes occurs. Their growth rate follows a model that includes viscous dissipation in the rim and slippage on the substrate. Under certain conditions, however, nucleated holes in very thin films grow uniformly only up to a certain threshold value, beyond which a cascade pattern called "satellite holes" is observed. This pattern is the result of the interplay between the disjoining and Laplace pressure.

AB - We describe experiments, based on optical and atomic force microscopy, aimed at characterising the growth of nucleated holes in polystyrene films. Circular nucleated holes develop upon dewetting in thick films, and they grow uniformly with time until coalescence with neighbouring holes occurs. Their growth rate follows a model that includes viscous dissipation in the rim and slippage on the substrate. Under certain conditions, however, nucleated holes in very thin films grow uniformly only up to a certain threshold value, beyond which a cascade pattern called "satellite holes" is observed. This pattern is the result of the interplay between the disjoining and Laplace pressure.

KW - AFM

KW - Dewetting

KW - Structure formation

KW - Thin polymer films

UR - http://www.scopus.com/inward/record.url?scp=2942571677&partnerID=8YFLogxK

U2 - 10.1016/j.physa.2004.03.049

DO - 10.1016/j.physa.2004.03.049

M3 - Conference article

SN - 0378-4371

VL - 339

SP - 66

EP - 71

JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

IS - 1-2

T2 - Proceedings of the International Conference New Materials

Y2 - 3 November 2003 through 7 November 2003

ER -

Dynamics of hole growth in dewetting polystyrene films

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