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Preparation and characterization of methanol selective membranes based on polyheteroarylene − Cu(I) complexes for purification of methyl tertiary butyl ether
Author(s) -
Pulyalina Alexandra,
Polotskaya Galina,
Goikhman Mikhail,
Podeshvo Irina,
Gulii Natalia,
Shugurov Sergey,
Tataurov Maksim,
Toikka Alexander
Publication year - 2017
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.5463
Subject(s) - membrane , pervaporation , methanol , ether , polymer , permeation , polymer chemistry , prepolymer , materials science , glass transition , chemical engineering , gas separation , chemistry , organic chemistry , polyurethane , biochemistry , engineering
A comparative study of metal − polymer complexes of Cu(I) with polybenzoxazinoneimide (PBOI) and its prepolymer imide‐containing polyamic acid (PAA) as novel membrane materials for methyl tertiary butyl ether (MTBE) purification was undertaken. The structure, physical parameters and transport properties were characterized in detail to analyse the separation performance of the membranes and obtain new knowledge on the interdependence of the chemical structure and physical data with transport parameters. Thermally initiated conversion of PAA − Cu(I) to PBOI − Cu(I) was studied by TGA and DSC. The thermal conversion increases the polymer glass transition temperature and membrane density. Both polymers were applied to pervaporation separation of MTBE from methanol impurities. Membranes based on PAA are highly effective in MTBE purification and preferably permeate methanol. The transport properties of PAA − Cu(I) membrane are compared with those of known membranes. © 2017 Society of Chemical Industry