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Nanoscale probing a glass transition temperature of heterogeneous azo-polymers using atomic force microscopy

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dc.contributor.author Skvortsova T.
dc.contributor.author Chernykh E.
dc.contributor.author Saparina S.
dc.contributor.author Bikmeeva K.
dc.date.accessioned 2020-01-15T21:49:07Z
dc.date.available 2020-01-15T21:49:07Z
dc.date.issued 2019
dc.identifier.issn 1742-6588
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/156191
dc.description.abstract © 2019 IOP Publishing Ltd. All rights reserved. Azo-polymer materials found diverse applications in many interdisciplinary areas, including frequency conversion, surface relief grating and others. In such devices, stratified polymer systems are often used, in which each layer ranges from 5 nm to 100 nm in thickness. One of the key characteristics of the polymer is the glass transition temperature Tg, which indicates the thermal stability of polymer, depending on its thickness and environment. The method for determining Tg that used in this work is based on recording the dependence of the oscillation phase of an atomic-force microscope probe on the sample temperature. To study the possibility of determining the local Tg, a cross section of a multilayer polymer system, polyethylene/polyamide with the layer thicknesses of 50-100 nm, is used. Tg is measured by a change in the phase of oscillation of the cantilever, which is caused by the loss of energy of the cantilever due to the change in Gibbs energy of the polymer during the thermal expansion. It was possible to measure the local temperature within the glass transition points of the sample and for chemical identification methods used different areas of enhanced optical microscopy (nano-Raman and nano-IR).
dc.relation.ispartofseries Journal of Physics: Conference Series
dc.title Nanoscale probing a glass transition temperature of heterogeneous azo-polymers using atomic force microscopy
dc.type Conference Paper
dc.relation.ispartofseries-issue 1
dc.relation.ispartofseries-volume 1283
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS17426588-2019-1283-1-SID85070635028

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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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