Pervaporation　is　considered　to　have　great　potential　for　application　in　the　field　of　organic-solvent　dehydration.　In　this　study,　a　type　of　keto-enamine-linked　covalent　organic　framework　TpPa　(synthesized　using　the　Schiff-base　reaction　of　1,3,5-triformylphloroglucinol　[Tp]　with　p-phenylenediamine　[Pa]),　was　fabricated　on　commercial　polyacrylonitrile　(PAN)　ultrafiltration　membranes　through　an　oxygen-plasma　assisted　contra-diffusion　self-assembly　strategy　for　organic-solvent　dehydration.　The　PAN　membranes　with　a　glycerol　exhibited　a　better　separation　factor　for　dehydration　of　organic　solvents　than　those　without　a　glycerol　layer.　The　influence　of　oxygen　plasma　and　glycerol　on　the　formation　of　the　TpPa　membrane　was　investigated.　The　best　plasma　treatment　condition　and　optimum　glycerol　impregnation　concentration　were　determined　as　a　device　power　of　60　W　and　30　wt%,　respectively.　Defect-free　TpPa　membrane　formation　took　only　24　h.　The　as-prepared　TpPa　membrane　exhibited　a　separation　factor　of　1491　and　a　high　permeation　flux　of　2530　g　m(-2)　h(-1)　for　a　90　wt%　isopropanol-water　mixture.　The　separation　performance　of　the　TpPa　membrane　was　stable　for　＞100　h,　exhibiting　great　potential　in　organic-solvent　dehydration.