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- W238708573 abstract "Abstract : The goal of this research was to gain an understanding of the transport/morphology relationships in semi-crystalline polymers. It was hoped that this research would lead to the development of inexpensive high barrier materials with desirable mechanical properties. Briefly we have found that: 1) Uniaxial drawing is an extremely effective way to increase the barrier of semicrystalline films. For HDPE with a 20x draw, barrier improves by a factor of = 500 for carbon tetrachloride; = 50-100 for diatomic oxygen and carbon dioxide and = 25 for helium. 2) The mechanism for this improvement is less clearly understood; however it is not due to major changes in percentages crystallinity or an increase in amorphous density. At this stage it appears to be due to a reduction in amorphous chain mobility. Keywords: Diffusion; Morphology; Sorption; Draw ratio; HDPE(High Density Polyethylene)." @default.
- W238708573 created "2016-06-24" @default.
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- W238708573 date "1988-08-10" @default.
- W238708573 modified "2023-09-27" @default.
- W238708573 title "Polymer Morphology and Transport" @default.
- W238708573 hasPublicationYear "1988" @default.
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