Diffuse polymer interfaces in lobed nanoemulsions preserved in aqueous media

Ginam Kim; Alioscka Sousa; Deborah Meyers; Marilyn Shope; Matthew Libera

doi:10.1021/ja061377t

Diffuse polymer interfaces in lobed nanoemulsions preserved in aqueous media

Ginam Kim, Alioscka Sousa, Deborah Meyers, Marilyn Shope, Matthew Libera

Department of Chemical Engineering and Materials Science

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

23 Scopus citations

Abstract

Using valence electron energy loss spectroscopy (EELS) in the cryo-scanning transmission electron microscopy (STEM), we found that the polymer-polymer interface in two-phase nanocolloids of polydimethyl siloxane (PDMS) and copolymer (methyl acrylate (MA)-methyl methacrylate (MMA)-vinyl acetate (VA)) preserved in water was diffuse despite the fact that equilibrium thermodynamics indicates it should only be on the order of a few nanometers. The diffuse interface is a result of the kinetic trapping of the copolymer within the PDMS phase, and this finding suggests new nonequilibrium pathways to control interfaces during the synthesis of multicomponent polymeric nanostructures.

Original language	English
Pages (from-to)	6570-6571
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	128
Issue number	20
DOIs	https://doi.org/10.1021/ja061377t
State	Published - 24 May 2006

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title = "Diffuse polymer interfaces in lobed nanoemulsions preserved in aqueous media",

abstract = "Using valence electron energy loss spectroscopy (EELS) in the cryo-scanning transmission electron microscopy (STEM), we found that the polymer-polymer interface in two-phase nanocolloids of polydimethyl siloxane (PDMS) and copolymer (methyl acrylate (MA)-methyl methacrylate (MMA)-vinyl acetate (VA)) preserved in water was diffuse despite the fact that equilibrium thermodynamics indicates it should only be on the order of a few nanometers. The diffuse interface is a result of the kinetic trapping of the copolymer within the PDMS phase, and this finding suggests new nonequilibrium pathways to control interfaces during the synthesis of multicomponent polymeric nanostructures.",

author = "Ginam Kim and Alioscka Sousa and Deborah Meyers and Marilyn Shope and Matthew Libera",

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T1 - Diffuse polymer interfaces in lobed nanoemulsions preserved in aqueous media

AU - Kim, Ginam

AU - Sousa, Alioscka

AU - Meyers, Deborah

AU - Shope, Marilyn

AU - Libera, Matthew

PY - 2006/5/24

Y1 - 2006/5/24

N2 - Using valence electron energy loss spectroscopy (EELS) in the cryo-scanning transmission electron microscopy (STEM), we found that the polymer-polymer interface in two-phase nanocolloids of polydimethyl siloxane (PDMS) and copolymer (methyl acrylate (MA)-methyl methacrylate (MMA)-vinyl acetate (VA)) preserved in water was diffuse despite the fact that equilibrium thermodynamics indicates it should only be on the order of a few nanometers. The diffuse interface is a result of the kinetic trapping of the copolymer within the PDMS phase, and this finding suggests new nonequilibrium pathways to control interfaces during the synthesis of multicomponent polymeric nanostructures.

AB - Using valence electron energy loss spectroscopy (EELS) in the cryo-scanning transmission electron microscopy (STEM), we found that the polymer-polymer interface in two-phase nanocolloids of polydimethyl siloxane (PDMS) and copolymer (methyl acrylate (MA)-methyl methacrylate (MMA)-vinyl acetate (VA)) preserved in water was diffuse despite the fact that equilibrium thermodynamics indicates it should only be on the order of a few nanometers. The diffuse interface is a result of the kinetic trapping of the copolymer within the PDMS phase, and this finding suggests new nonequilibrium pathways to control interfaces during the synthesis of multicomponent polymeric nanostructures.

UR - https://www.scopus.com/pages/publications/33646744720

UR - https://www.scopus.com/inward/citedby.url?scp=33646744720&partnerID=8YFLogxK

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M3 - Article

C2 - 16704252

AN - SCOPUS:33646744720

SN - 0002-7863

VL - 128

SP - 6570

EP - 6571

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 20

ER -

Diffuse polymer interfaces in lobed nanoemulsions preserved in aqueous media

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