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Synthesis, Curing Behavior and Swell Tests of pH-Responsive Coatings from Acryl-Terminated Oligo(beta-Amino Esters)
Mid Sweden University, Sweden.
RISE - Research Institutes of Sweden, ICT, Acreo. Mid Sweden University, Sweden.
Mid Sweden University, Sweden.
Mid Sweden University, Sweden.
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2018 (English)In: CHEMOSENSORS, ISSN 2227-9040, Vol. 6, article id 10Article in journal (Refereed) In press
Abstract [en]

The ability of acryl-terminated oligo(beta-amino esters) (AOBAE) to be coated on fibers and printed electronics without solvents and to be cross-linked to a pH-responsive coatings, makes AOBAE-based coatings a potential type of pH-sensor coating. However, there are currently no reports of AOBAEs used as a pH-responsive coating material in sensor applications. Here we present an investigation of the synthesis, curing behavior and swell tests of AOBAEs. AOBAEs were synthesized from reacting an excess of asymmetric diacrylates with piperazine without the use of any solvents. They were then cross-linked to an insoluble network by UV-curing. Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy were used to characterize the AOBAEs. NMR was used to clarify the irregular structure of the AOBAE. FTIR was used to monitor the effects of UV-curing dose and air exposure on monomer conversion during curing. An interferometric technique was used to monitor the swelling behavior of the coating in response to pH variations. Swell experiments showed that the AOBAE also responded to pH variations after polymerization. Therefore, AOBAE is an interesting class of material with potential use as a pH responsive coating in optical-and printed electronics pH-sensors applications.

Place, publisher, year, edition, pages
MDPI , 2018. Vol. 6, article id 10
Keywords [en]
oligo(beta-amino esters); acryl-terminated; 1, 3-butanediol diacrylate; piperazine; pH; sensor; coating; thin film
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33641DOI: 10.3390/chemosensors6010010OAI: oai:DiVA.org:ri-33641DiVA, id: diva2:1197822
Available from: 2018-04-14 Created: 2018-04-14 Last updated: 2018-04-14Bibliographically approved

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CiteExportLink to record
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