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Theory of hydrogen permeability in nonporous silica membranes

✍ Scribed by S.T. Oyama; D. Lee; P. Hacarlioglu; R.F. Saraf

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
318 KB
Volume
244
Category
Article
ISSN
0376-7388

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Nonporous polyurethane membranes were synthesized using toluene 2,4diisocyanate (TDI), polypropylene glycol (PPG), or polytetramethylene glycol (PTMG) as polyols and 1,4-butanediol as chain extender. The percentage of hard segments was varied keeping the NCO/OH ratio constant as 1. 1. The permeation