000			01419nam a2200193Ia 4500
003			MX-MdCICY
005			20250625124640.0
040			_cCICY
090			_aB-6319
245	1	0	_aFormation of defect-free polyimide hollow fiber membranes for gas separations
490	0		_vJournal of Membrane Science, 167(1), p.79-89, 2000
520	3		_aUltra-thin and defect-free polyimide hollow fiber membranes were formed using a dry-jet, wet quench process with spin dopes both with and without volatile solvents. Fibers were spun from the commercially available polyimide, Matrimid® 5218, and were precipitated in an aqueous quench bath. Spin dopes comprised volatile and non-volatile solvents, polymer, and non-solvent. The influences of dope composition, spinning parameters, and dehydration procedures on the membrane morphology and performance were investigated. Without post-treatment (i.e., defect repair), the fibers exhibited skin thicknesses on the order of 1000 Å and O2/N2 selectivities ranging from 90 to 100
650	1	4	_aDRY/WET PHASE INVERSION; ASYMMETRIC MEMBRANES; GAS SEPARATION; HOLLOW FIBER MEMBRANES; POLYIMIDE
700	1	2	_aClausi, T.D.
700	1	2	_aKoros, W.J.
856	4	0	_uhttps://drive.google.com/file/d/18aaPnQqruuT0xRr1lMPbYv1kyQXK3GEv/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942			_2Loc _cREF1
008			250602s9999 xx |||||s2 |||| ||und|d
999			_c40663 _d40663