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Back Cover, Volume 131, Issue 1
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39957
Subject(s) - natural rubber , volume (thermodynamics) , materials science , polymer science , elastomer , polymer , anisotropy , composite material , nanotechnology , physics , thermodynamics , optics
In the semiconductor manufacturing process, the formation of bubbles in liquid chemicals can cause small defects, lowering the product yield rate. To remove bubbles, a gas permeable membrane produced using a melt extrusion and stretching process can be applied as a separation method. In this study by Masamoto Uenishi et al., blow‐molded films are uniaxially stretched, and the relationship between the gas permeation behavior and the molecular mobility of the ethylene butylene rubber chains is investigated. The cover shows transmission electron micrographs of a 3D‐network structure from a polymer blend in the stretched film. The unique gas permeation properties are explained by the anisotropic molecular mobility of the rubber chain. Anisotropic behavior is maintained by the 3D‐network structure, which could lead to a novel fabrication technique for elastomers. DOI: 10.1002/app.39386