%0 Journal Article %T Hydrocarbons separation with polymer membranes. I. Butadiene–isobutene separation with nitrile rubber membranes %A Brun, J. P. %A Bulvestre, G. %A Kergreis, A. %A Guillou, M. %J Journal of Applied Polymer Science %V 18 %N 6 %P 1663-1683 %@ 0021-8995 %D 1974-06-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve