Experimental methods for tracking physic
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Y. Huang; D.R. Paul
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Article
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2004
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Elsevier Science
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English
β 481 KB
This paper describes methodologies that have been developed for studying the physical aging of free-standing thin polymer films and its effect on gas permeability. Both solution casting and spin coating methods were used to obtain thin polysulfone films having thicknesses in the range of 400-1000 nm