Self-Stratified Films Obtained from Poly(methyl methacrylate/n-butyl acrylate) Colloidal Dispersions Containing Poly(vinyl alcohol): A Spectroscopic Study.

Self-Stratified Films Obtained from Poly(methyl methacrylate/n-butyl acrylate) Colloidal Dispersions Containing Poly(vinyl alcohol): A Spectroscopic Study. Research Abstract Details 

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Self-Stratified Films Obtained from Poly(methyl methacrylate/n-butyl acrylate) Colloidal Dispersions Containing Poly(vinyl alcohol): A Spectroscopic Study. Abstract Text:

Kevin L Rhudy,Shengpei Su,Hunter R Howell,Marek W Urban,

These studies focus on the role of poly(vinyl alcohol) (pVOH) during colloidal synthesis of poly(methyl methacrylate/n-butyl acrylate) (pMMA/nBA) and its effect on particle coalescence. Using 2D photoacoustic FT-IR spectroscopy and internal reflection IR imaging, we showed that the presence of pVOH creates competing environments between the copolymer particle surfaces, aqueous phases, and dispersing agents which results in migration and self-induced stratification occurring during coalescence. pMMA/nBA/pVOH films stratify to form sodium dodecyl sulfate rich film-air interfaces, and the -SO3- moieties exhibit preferential parallel orientation with respect to the surface. At the same time, the bulk of the film is dominated by intramolecular hydrogen bonding between the pVOH phase and the copolymer matrix. This behavior is attributed to significant interactions between pVOH and pMMA/nBA, resulting in limited mobility of pVOH.

Self-Stratified Films Obtained from Poly(methyl methacrylate/n-butyl acrylate) Colloidal Dispersions Containing Poly(vinyl alcohol): A Spectroscopic Study. Publishing Authors By Initials

KL Rhudy,S Su,HR Howell,MW Urban,

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Self-Stratified Films Obtained from Poly(methyl methacrylate/n-butyl acrylate) Colloidal Dispersions Containing Poly(vinyl alcohol): A Spectroscopic Study. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Langmuir : the ACS journal of surfaces and colloid

VOLUME: 24

Page Numbers: 1808-13

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ISSN: 0743-7463

DAY: 15

MONTH: 01

YEAR: 2008

Self-Stratified Films Obtained from Poly(methyl methacrylate/n-butyl acrylate) Colloidal Dispersions Containing Poly(vinyl alcohol): A Spectroscopic Study. Information

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LANGUAGE: eng

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AFFILIATION: School of Polymers and High Performance Materials, Shelby F. Thames Polymer Science Research Center, Department of Polymer Science, The University of Southern Mississippi, Hattiesburg, Mississippi 39401.

Country: United States

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