Miscibility of mixed stereoregular PMMA/PVPh monolayers at the air/water interface

Yuh-Lang Lee, Wen Ping Hsu, Shu Hua Liou

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The mixed monolayer behavior of stereoregular poly(methyl methacrylate) (PMMA) and poly(vinyl phenol) (PVPh) was investigated from the measurements of surface pressure-area per molecule (π-A) isotherms. The π-A isotherms indicated that isotactic PMMA (iPMMA) and PVPh were miscible at the air/water interface. The miscibility and non-ideality of the mixed monolayers were examined by calculating the excess area as a function of composition, and negative deviations from ideality were observed, which suggest the existence of attractive interactions between iPMMA and PVPh. However, the π-A isotherms of mixed syndiotactic PMMA (sPMMA)/PVPh monolayers showed positive deviation from ideality, which might suggest that non-favorable interactions exist between sPMMA and PVPh. The π-A isotherms of mixed atactic PMMA (aPMMA)/PVPh monolayers exhibited complicated excess area behavior. Both positive and negative deviations from ideality were observed at various surface pressures. These isotherm results of mixed polymers correlate approximately well with the miscibility of the corresponding mixtures in the bulk state. The formation of hydrogen bonding between PMMA and PVPh was substantiated in the bulk state by means of Fourier transform infrared (FTIR). Regardless of tacticity, an increase of hydrogen-bonded carbonyl fraction was observed.

Original languageEnglish
Pages (from-to)37-47
Number of pages11
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume272
Issue number1-2
DOIs
Publication statusPublished - 2006 Jan 5

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Polymethyl Methacrylate
Phenol
Polymethyl methacrylates
polymethyl methacrylate
phenols
Phenols
Monolayers
solubility
Solubility
Isotherms
isotherms
Water
air
Air
water
deviation
hydrogen
Fourier transforms
Hydrogen bonds
interactions

All Science Journal Classification (ASJC) codes

  • Colloid and Surface Chemistry

Cite this

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title = "Miscibility of mixed stereoregular PMMA/PVPh monolayers at the air/water interface",
abstract = "The mixed monolayer behavior of stereoregular poly(methyl methacrylate) (PMMA) and poly(vinyl phenol) (PVPh) was investigated from the measurements of surface pressure-area per molecule (π-A) isotherms. The π-A isotherms indicated that isotactic PMMA (iPMMA) and PVPh were miscible at the air/water interface. The miscibility and non-ideality of the mixed monolayers were examined by calculating the excess area as a function of composition, and negative deviations from ideality were observed, which suggest the existence of attractive interactions between iPMMA and PVPh. However, the π-A isotherms of mixed syndiotactic PMMA (sPMMA)/PVPh monolayers showed positive deviation from ideality, which might suggest that non-favorable interactions exist between sPMMA and PVPh. The π-A isotherms of mixed atactic PMMA (aPMMA)/PVPh monolayers exhibited complicated excess area behavior. Both positive and negative deviations from ideality were observed at various surface pressures. These isotherm results of mixed polymers correlate approximately well with the miscibility of the corresponding mixtures in the bulk state. The formation of hydrogen bonding between PMMA and PVPh was substantiated in the bulk state by means of Fourier transform infrared (FTIR). Regardless of tacticity, an increase of hydrogen-bonded carbonyl fraction was observed.",
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Miscibility of mixed stereoregular PMMA/PVPh monolayers at the air/water interface. / Lee, Yuh-Lang; Hsu, Wen Ping; Liou, Shu Hua.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 272, No. 1-2, 05.01.2006, p. 37-47.

Research output: Contribution to journalArticle

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