Effect of CO2 plasticization on azobenzene diffusion in glassy polystyrene near the glass transition

Bryan R. Chapman; Michael E. Paulaitis; Craig R. Gochanour

doi:10.1021/ma0014057

Effect of CO₂ plasticization on azobenzene diffusion in glassy polystyrene near the glass transition

Bryan R. Chapman, Michael E. Paulaitis, Craig R. Gochanour

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

6 Scopus citations

Abstract

The forced Rayleigh scattering measurements of azobenzene diffusion on polystyrene across the CO₂-induced glass transition for two additional temperatures are reported. The results are used to compare the effects of plasticization by temperature and by added CO₂ on solute diffusion. For the temperatures studied, the isomer diffusion coefficients are plotted as a function of CO₂ weight fraction. At the glass transition, the probe mobility is sensitive to CO₂ concentration.

Original language	English (US)
Pages (from-to)	340-342
Number of pages	3
Journal	Macromolecules
Volume	34
Issue number	2
DOIs	https://doi.org/10.1021/ma0014057
State	Published - Jan 16 2001
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma0014057

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abstract = "The forced Rayleigh scattering measurements of azobenzene diffusion on polystyrene across the CO2-induced glass transition for two additional temperatures are reported. The results are used to compare the effects of plasticization by temperature and by added CO2 on solute diffusion. For the temperatures studied, the isomer diffusion coefficients are plotted as a function of CO2 weight fraction. At the glass transition, the probe mobility is sensitive to CO2 concentration.",

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AU - Paulaitis, Michael E.

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Y1 - 2001/1/16

N2 - The forced Rayleigh scattering measurements of azobenzene diffusion on polystyrene across the CO2-induced glass transition for two additional temperatures are reported. The results are used to compare the effects of plasticization by temperature and by added CO2 on solute diffusion. For the temperatures studied, the isomer diffusion coefficients are plotted as a function of CO2 weight fraction. At the glass transition, the probe mobility is sensitive to CO2 concentration.

AB - The forced Rayleigh scattering measurements of azobenzene diffusion on polystyrene across the CO2-induced glass transition for two additional temperatures are reported. The results are used to compare the effects of plasticization by temperature and by added CO2 on solute diffusion. For the temperatures studied, the isomer diffusion coefficients are plotted as a function of CO2 weight fraction. At the glass transition, the probe mobility is sensitive to CO2 concentration.

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Effect of CO₂ plasticization on azobenzene diffusion in glassy polystyrene near the glass transition

Abstract

ASJC Scopus subject areas

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