01427nam a2200313 k 4500001001500000005001500015008004100030035002000071040001800091049002100109052001900130086001800149100003100167245013000198260020100328300000800529440003400537490003400571500005500605533010700660650003000767650002300797700003500820700003800855710007100893740005700964830004301021963004901064WMF000127125  20201126143231930825s1989    us      b     000   eng    a(DGPO)94060512   aGPOcGPOdDLC0 lZZ0000164746fXA06aNAS 1.26b4237  aNAS 1.26:42371 aStern, S. A.0KAC2020S935210aStructure/permeability relationships of silicon-containing polyimideshmicroform/dS.A. Stern and R. Vaidyanathan, J.R. Pratt  a[Washington, DC]:bNational Aeronautics and Space Administration, Scientific and Technical Information Division;a[Springfield, Va.:bFor sale by the National Technical Information Service],c1989  a1 v00aNASA contractor report;v423710aNASA contractor report;v4237  aDistributed to depository libraries in microfiche.  aMicrofiche.b[Washington, D.C.:cNational Aeronautics and Space Administration,d1989].e1 microfiche. 0aPolyimidesxPermeability. 0aSilicon compounds.1 aVaidyanathan, R.0KAC2020Q37801 aPratt, John Richard0KAC2020S1551  aNASA.bScientific and Technical Information Division0KAB2020107810 aStructure permeability relationships of silicon .... 0aNASA contractor report;vNASA CR-4237.  aPolyimidesaSiliconacompoundsaPermeability