Effect of interfaces on the crystallization behavior of PDMS

T. Dollase; M. Wilhelm; H. W. Spiess; Y. Yagen; R. Yerushalmi-Rozen; M. Gottlieb

doi:10.1023/A:1022174712707

Effect of interfaces on the crystallization behavior of PDMS

T. Dollase, M. Wilhelm, H. W. Spiess, Y. Yagen, R. Yerushalmi-Rozen, M. Gottlieb

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

Abstract

The reversible thermal behavior of a non-entangled semicrystalline polymer, poly(dimethylsiloxane), PDMS, was investigated in the presence of sub-micron particles. Filled polymer systems of this type are characterized by a large surface-to-volume ratio but lack the external confinement that is typical for a thin film geometry. Differential-scanning calorimetry (DSC) measurements indicate that the presence of the nanometric solid additives enhances the crystallization rate as compared to native PDMS melts. Different types of additives and surface interactions resulted in a similar effect, suggesting that the origin of the enhanced crystallinity is non-specific. The effect is attributed to entropic interactions in the boundary layer.

Original language	English
Pages (from-to)	199-209
Number of pages	11
Journal	Interface Science
Volume	11
Issue number	2
DOIs	https://doi.org/10.1023/A:1022174712707
State	Published - 1 Apr 2003

Keywords

Polymer crystallization
Surface effects in polymers

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Materials Science (all)
Condensed Matter Physics

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10.1023/A:1022174712707

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title = "Effect of interfaces on the crystallization behavior of PDMS",

abstract = "The reversible thermal behavior of a non-entangled semicrystalline polymer, poly(dimethylsiloxane), PDMS, was investigated in the presence of sub-micron particles. Filled polymer systems of this type are characterized by a large surface-to-volume ratio but lack the external confinement that is typical for a thin film geometry. Differential-scanning calorimetry (DSC) measurements indicate that the presence of the nanometric solid additives enhances the crystallization rate as compared to native PDMS melts. Different types of additives and surface interactions resulted in a similar effect, suggesting that the origin of the enhanced crystallinity is non-specific. The effect is attributed to entropic interactions in the boundary layer.",

keywords = "Polymer crystallization, Surface effects in polymers",

author = "T. Dollase and M. Wilhelm and Spiess, {H. W.} and Y. Yagen and R. Yerushalmi-Rozen and M. Gottlieb",

note = "Funding Information: We would like to thank Profs. J. Baschnagel, G. Strobl, B. Cabane, and I. Szleifer for illuminating discussions, and Prof. Y. Cohen for his remarks. We also thank Mettler Toledo, and especially Dr. R. Riesen for discussing instrumental aspects with us. We would like to express our gratitude to T. Wagner for synthesizing the PDMS 16K. TD acknowledges a fellowship from the MINERVA foundation. This work was funded through the Infrastructure Research Program of the Israel Ministry of Science and Culture (grant no. 8625), and the United States-Israel Binational Science Foundation (BSF 2000124).",

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AU - Dollase, T.

AU - Wilhelm, M.

AU - Spiess, H. W.

AU - Yagen, Y.

AU - Yerushalmi-Rozen, R.

AU - Gottlieb, M.

N1 - Funding Information: We would like to thank Profs. J. Baschnagel, G. Strobl, B. Cabane, and I. Szleifer for illuminating discussions, and Prof. Y. Cohen for his remarks. We also thank Mettler Toledo, and especially Dr. R. Riesen for discussing instrumental aspects with us. We would like to express our gratitude to T. Wagner for synthesizing the PDMS 16K. TD acknowledges a fellowship from the MINERVA foundation. This work was funded through the Infrastructure Research Program of the Israel Ministry of Science and Culture (grant no. 8625), and the United States-Israel Binational Science Foundation (BSF 2000124).

PY - 2003/4/1

Y1 - 2003/4/1

N2 - The reversible thermal behavior of a non-entangled semicrystalline polymer, poly(dimethylsiloxane), PDMS, was investigated in the presence of sub-micron particles. Filled polymer systems of this type are characterized by a large surface-to-volume ratio but lack the external confinement that is typical for a thin film geometry. Differential-scanning calorimetry (DSC) measurements indicate that the presence of the nanometric solid additives enhances the crystallization rate as compared to native PDMS melts. Different types of additives and surface interactions resulted in a similar effect, suggesting that the origin of the enhanced crystallinity is non-specific. The effect is attributed to entropic interactions in the boundary layer.

AB - The reversible thermal behavior of a non-entangled semicrystalline polymer, poly(dimethylsiloxane), PDMS, was investigated in the presence of sub-micron particles. Filled polymer systems of this type are characterized by a large surface-to-volume ratio but lack the external confinement that is typical for a thin film geometry. Differential-scanning calorimetry (DSC) measurements indicate that the presence of the nanometric solid additives enhances the crystallization rate as compared to native PDMS melts. Different types of additives and surface interactions resulted in a similar effect, suggesting that the origin of the enhanced crystallinity is non-specific. The effect is attributed to entropic interactions in the boundary layer.

KW - Polymer crystallization

KW - Surface effects in polymers

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JO - Interface Science

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Effect of interfaces on the crystallization behavior of PDMS

Abstract

Keywords

ASJC Scopus subject areas

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