Structure and morphology of new bio-based thermoplastic polyurethanes obtained from dimeric fatty acids

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DOIResolve DOI: http://doi.org/10.1002/mame.201100278
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TypeArticle
Journal titleMacromolecular Materials and Engineering
ISSN14387492
Volume297
Issue8
Pages777784; # of pages: 8
Subjectatomic force microscopy; bio-based polyols; dimeric fatty acids; polyurethanes; structure-property relationships
AbstractBio-based TPUs from dimer acid-based polyols are synthesised by using a two-step prepolymer process including reactive processing. The effect of the polyol on the final chemical structures, morphologies and properties of bio-based TPUs is evaluated by different analytical techniques. It is observed that the percentage of hard segment (HS) distributed in organised and unorganised phases is a key factor to control the materials properties. DSC reveals that the percentages of HS dispersed in the soft domains are high at low experimental HS contents. Multiscale microscopies show better defined organised structures with increasing HS content in TPUs, highlighting the importance of the distribution between hard and soft segments in the material structure.
Publication date
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21268209
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Record identifierf0747b84-2924-4b49-8653-8f668be3c4fc
Record created2013-06-04
Record modified2016-05-09
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