Special Issue "Polymer Thin Films and Membranes"
A special issue of Polymers (ISSN 2073-4360).
Deadline for manuscript submissions: closed (30 December 2011)
Prof. Dr. Charles Rogers
Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106-7202, USA
Phone: +1 216 3686376
Fax: +1 216 3684202
Interests: Solution, diffusion and permeation; separation membranes; electronic and electrochemical membranes; degradation and other environmental effects on polymers; mechanical properties, deformation and fatigue of polymers; multi-component polymer systems; adhesion and adhesives, sealants and coatings; surface science and technology
Synthetic membrane technology has achieved a startling rate of development over the last three decades. Many, if not most, of the membrane materials useful for separation processes, drug release, reactor media, and other applications are dependent on the formation and properties of thin films, often ultra-thin surface or interfacial films. Our understanding of these systems involves knowledge of the relationships between materials composition, structure and properties as affected by processing and end-use conditions. A better understanding of the scientific basis of these relationships would serve as a stimulus and guide for obtaining even more dramatic systems and applications. Areas of great promise and much accomplishment are the substitution of synthetic materials for natural biological or botanical membranes, extension of the scope of viable separation membrane applications and formation of complex membrane reactor systems. All of these areas, and others, would benefit greatly from such an increase in knowledge. This Special Issue is intended to provide a means for communicating studies that increase our scientific knowledge of thin film and membrane systems. Its content also will reflect advances reported in other relevant Special Issues of Polymers.
Prof. Dr. Charles Rogers
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. Papers will be published continuously (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are refereed through a peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed Open Access quarterly journal published by MDPI.
- thin films
- interfacial phenomena
- penetrant-polymer interactions
- natural membranes
- membrane reactors
- membrane separations
- selective permeation
- separation of isomeric and racemic mixtures
Polymers 2011, 3(3), 1091-1106; doi:10.3390/polym3031091
Received: 31 May 2011; in revised form: 5 July 2011 / Accepted: 14 July 2011 / Published: 15 July 2011| Download PDF Full-text (1957 KB) | Download XML Full-text
Article: Effects of Emulsion-Based Resonant Infrared Matrix Assisted Pulsed Laser Evaporation (RIR-MAPLE) on the Molecular Weight of Polymers
Polymers 2012, 4(1), 341-354; doi:10.3390/polym4010341
Received: 31 December 2011; in revised form: 29 January 2012 / Accepted: 30 January 2012 / Published: 1 February 2012| Download PDF Full-text (319 KB) | Download XML Full-text
Article: Variational Models of Network Formation and Ion Transport: Applications to Perfluorosulfonate Ionomer Membranes
Polymers 2012, 4(1), 630-655; doi:10.3390/polym4010630
Received: 31 December 2011; in revised form: 13 February 2012 / Accepted: 15 February 2012 / Published: 24 February 2012| Download PDF Full-text (5904 KB)
Polymers 2012, 4(2), 913-963; doi:10.3390/polym4020913
Received: 14 February 2012; in revised form: 1 March 2012 / Accepted: 14 March 2012 / Published: 26 March 2012| Download PDF Full-text (2199 KB) | Download XML Full-text
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Type of Paper: Review
Title: A Review of Interfacially Polymerized Membranes
Authors: Wangxi Fang, William B. Krantz and Wang Rong
Affiliation: Singapore Membrane Technology Center, Nanyang Technological University, Singapore 639798; E-Mail: firstname.lastname@example.org (W.B.K.)
Abstract: Since Cadotte patented the first interfacially polymerized (IP) membrane in 1981, they have come to dominate the reverse osmosis desalination market. More recently IP has been used to develop novel polyamide and polyimide high permeation flux nanofiltration membranes. The IP process is attractive for fabricating permselective membranes because under proper conditions it is a self-limiting reaction process; that is, the diffusion of the reacting monomers to the interface results in polymerization and the growth of a crosslinked thin film that ultimately inhibits further contact between the reactants. Typically one of the monomeric reactants is dissolved in an aqueous phase and the other in an immiscible organic phase. The IP reaction then occurs at the interface created when these two immiscible phases are brought into contact. In fabricating membranes the IP reaction occurs on the surface of a microporous support membrane, thereby resulting in a thin film composite (TFC) membrane. The IP film serves as the functional permselective layer of this TFC membrane. This review will underscore the advantages as well as new and emerging applications of IP membranes such as novel forward osmosis membranes and low pressure charged hollow fiber membranes for water softening.
The basic principles of the formation of IP membranes will be reviewed. The state-of-the-art in the development of modified and new interfacially polymerized membranes then will be assessed. The characterization of IP membranes is challenging since their high degree of crosslinking precludes using standard spectroscopic techniques that require dissolving the polymer in an appropriate solvent. However, IP membranes are amenable to characterization via total internal reflectance infrared spectroscopy and positron annihilation spectroscopy as well as dedicated techniques such as pendant drop mechanical analysis. This comprehensive review will assess the state-of-art in characterizing IP membranes.
This review will conclude with a summary of the challenges facing the development of improved and new IP membranes. Recommendations will also be advanced for the direction of future research on IP membranes.
Last update: 9 May 2011