<div class="csl-bib-body">
<div class="csl-entry">Vieira Dias Dos Santos, A. C., Lendl, B., & Ramer, G. (2021, August 23). <i>Polymer Analysis and Nanoscale IR: a New Chapter in a Decade-Long Story</i> [Conference Presentation]. 11th International Conference on Advanced Vibrational Spectroscopy (ICAVS), Poland.</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/153008
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dc.description.abstract
The story of infrared (IR) spectroscopy is in a way also the story of polymer science, with first experiments being
reported in the 1930s. The advent of FTIR in the 1960s brought about a tremendous improvement in the signal-
to-noise ratio and measurement times which firmly established IR spectroscopy as one of the standard polymer
characterization techniques. In the last century, synthetic polymers have become ubiquitous in day-to-day life
due to their advantages over traditional materials, such as lower price, lighter weight, versatility, and durability.
This success led to large amounts of polymer waste being released into nature every year where they persist for
decades or even centuries. Polymer recycling can be used to both reduce the production of new polymers and
the percentage of already existing polymers that become waste. In contrast to recycling of inorganic materials
polymer recycling poses some additional challenges: there is a limit to the amount of recycling cycles a polymer can go through before it becomes waste, and the presence of contaminants can lead to undesirable blends. While
some of the crucial parameters in recycling (e.g. composition, purity) are routinely monitored with FTIR, the key to
further improvements to the recycling process lies at the nanoscale. This scale is inaccessible to conventional IR
techniques that are diffraction limited to the micrometre range. This is where new, scanning probe-based nanoscale IR techniques like AFM-IR make a difference. AFM-IR, also known as PTIR, combines atomic force microscopy (AFM) and infrared (IR) spectroscopy to overcome the diffraction limit and provide IR spectra at spatial resolutions in the 10 nm range. Since the signals obtained through PTIR and FTIR are both proportional to the wavelength-dependent absorption coefficient of the sample, the long-established spectra-structure correlations of FTIR can also be applied in the interpretation of PTIR spectra. Hence, PTIR is able to rely on almost a century worth of experience in polymer IR spectroscopy to address the challenges of polymer recycling. However, like many nanoscale analysis techniques, PTIR suffers a trade-off between representative sampling and high resolution. Care needs to be taken to not only record pretty images, but also provide relevant data. In this work, we introduce a protocol to specifically address the issue of going from unknown polymer samples to nanoscale chemical distribution maps and demonstrate this approach on industrially relevant polymers (blends and recycled blends).
en
dc.description.sponsorship
FFG - Österr. Forschungsförderungs- gesellschaft mbH
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dc.language.iso
en
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dc.subject
AFM-IR
en
dc.subject
Nanoscale chemical characterization
en
dc.title
Polymer Analysis and Nanoscale IR: a New Chapter in a Decade-Long Story
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.relation.grantno
868615
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dc.type.category
Conference Presentation
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tuw.project.title
Chemical Systems Engineering
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tuw.researchinfrastructure
Universitäre Service-Einrichtung für Transmissionselektronenmikroskopie
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tuw.researchTopic.id
M2
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E164-02-1 - Forschungsgruppe Prozessanalytik
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tuw.author.orcid
0000-0001-6342-2823
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tuw.author.orcid
0000-0003-3838-5842
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tuw.author.orcid
0000-0001-8307-5435
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tuw.event.name
11th International Conference on Advanced Vibrational Spectroscopy (ICAVS)
en
tuw.event.startdate
23-08-2021
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tuw.event.enddate
26-08-2021
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tuw.event.online
Online
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tuw.event.type
Event for scientific audience
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tuw.event.country
PL
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tuw.event.presenter
Vieira Dias Dos Santos, Ana Catarina
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tuw.presentation.online
Online
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tuw.event.track
Single Track
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wb.sciencebranch
Chemie
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wb.sciencebranch.oefos
1040
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wb.sciencebranch.value
100
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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item.grantfulltext
none
-
item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.orcid
0000-0001-6342-2823
-
crisitem.author.orcid
0000-0003-3838-5842
-
crisitem.author.orcid
0000-0001-8307-5435
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crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
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crisitem.author.parentorg
E164 - Institut für Chemische Technologien und Analytik
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.project.funder
FFG - Österr. Forschungsförderungs- gesellschaft mbH
