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Poly(vinyl chloride) (PVC) hollow fibre membranes for gas separation

Jones, C.A. and Gordeyev, S.A. and Shilton, S.J. (2011) Poly(vinyl chloride) (PVC) hollow fibre membranes for gas separation. Polymer, 52 (4). pp. 901-903. ISSN 0032-3861

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Poly(vinyl chloride) (PVC) gas separation hollow fibre membranes were produced from multicomponent dopes using dry/wet forced convection spinning. Membranes spun from a low polymer content solution exhibited disappointing gas separation properties. Their low selectivities were indicative of thick skins and high surface porosities. In contrast, high polymer content spun fibres showed good gas separation properties. Selectivities were high, active layers relatively thin and surface porosities moderate. Coating with poly(dimethylsiloxane) nullified the surface pores. The favourable performance of the high polymer content spun fibres was also related to shear rate and forced convection residence time during spinning. To the knowledge of the authors, this work represents the first reported success in producing PVC hollow fibre membranes with morphologies suitable for gas separation. The development of PVC hollow fibres relates to the ultimate quest to produce membranes capable of reliably separating oxygen and ozone gas mixtures.

Item type: Article
ID code: 34526
Notes: The production of hollow fibre membranes for gas separation is a complex process – relatively few laboratories world-wide have this expertise. This publication reports the first ever fabrication of a working gas separation membrane from the polymer polyvinylchloride(PVC). This was a technically challenging, novel and non-routine achievement. The work is of high significance, not only because of the uniqueness of the PVC hollow fibre morphology, but because PVC is ozone resistant and hence the membranes fashioned here have the potential to separate oxygen and ozone gas mixtures. Such membranes would have huge industrial implications, as discussed in the publication. Follow up work is underway and membranes are currently undergoing oxygen/ozone tests. Industrial interest has been attracted and patent publications may follow. A copy of acceptance letter from journal editor, with referees’ comments, is included below: -----Original Message----- From: [] On Behalf Of Georg Krausch Sent: 06 January 2011 14:51 To: Simon Shilton Subject: Your Submission POLYMER-10-2045 Ref.: Ms. No. POLYMER-10-2045 Poly(vinyl chloride) (PVC) hollow fibre membranes for gas separation Polymer Dear Prof. Dr. Simon Shilton, First I would like to apologize for the unexpectedly long time needed to process your manuscript. On the other hand, I am pleased to tell you that your work has been accepted for publication in Polymer as is. Comments from the Editor and Reviewers can be found below. Thank you for submitting your work to this journal. With kind regards Georg Krausch Europe & ROW: Physics Polymer Editor/Reviewers' comments: This is a beautiful piece of work dealing with membranes made of hollow PVC fibres and their test for gas separation. The work is well done, clearly described and I can not find any issue that would justify lengthy revisions. The work can be published as submitted.
Keywords: gas separation, hollow fibre spinning, PVC, Chemical engineering, Organic Chemistry, Polymers and Plastics
Subjects: Technology > Chemical engineering
Department: Faculty of Engineering > Chemical and Process Engineering
Depositing user: Pure Administrator
Date Deposited: 21 Oct 2011 09:24
Last modified: 21 May 2015 13:52

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