Mix and match: new monomers for interfacial polymerization

Evelien Maaskant

Research output: ThesisPhD Thesis - Research UT, graduation UT

815 Downloads (Pure)

Abstract

Interfacial polymerization is a very versatile technique that allows for the production of thin, defect-free films in a localized manner. These films can be used as membranes for, e.g., gas separation, reverse osmosis, or nanofiltration. Interfacial polymerization allows for the use of a large variety of monomers, and therefore a virtually unlimited amount of possible networks could be designed. This thesis focuses on the synthesis of new materials prepared by interfacial polymerization by incorporating new monomers.

Thin films, prepared by interfacial polymerization, that are reported on in this thesis are based on polyamides, polyimides, polyphosphazenes, poly(aryl ether)s, and hyperbranched poly(aryl ether ketone)s.

Polyamide thin film composite membranes were prepared by using a newly synthesized star-shaped trifunctional acyl chloride monomer. In addition, hybrid thin films were prepared from polyhedral oligomeric silsesquioxane (POSS) and polydimethylsiloxane (PDMS) resulting in poly(PDMS-POSSimide) films and from hexachlorocyclotriphosphazene (HCCP) and aromatic biphenols resulting in cyclomatrix polyphosphazene films. Furthermore, pH-stable poly(aryl ether) films were prepared from cyanuric chloride with trifunctional alcohols.

Additionally, the synthesis of hyperbranched poly(aryl ether ketone)s (HBPAEKs) using a multifunctional monomer (AB2) approach is described.

Furthermore, the use of an inorganic porous hollow fiber as support for interfacial polymerization is discussed. The use of such a inorganic hollow fiber allows for membrane operation in harsh conditions.

The thesis finishes with reflections and perspectives on the results presented in the thesis. Additionally, suggestions for further research are given, followed by some general conclusions regarding the monomer functionality, the monomer reactivity and reaction conditions.
Original languageEnglish
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Benes, N.E., Supervisor
Award date6 Jul 2018
Place of PublicationEnschede
Publisher
Print ISBNs978-90-365-4516-7
DOIs
Publication statusPublished - 6 Jul 2018

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