Hochschulschrift
Large area crystal surfaces of precisely side-branched polyethylenes: preparation, surface order and functionalization
Zusammenfassung: Upon crystallization of polymers containing precisely spaced side-branches, the side-branches are excluded from the crystalline core of the lamellar crystal. Thus, the surfaces of these crystals are covered by side-branches. By using carboxyl groups as side-branches, which can be ionized in aqueous environments, self-stabilized nanocrystal dispersions can be prepared. In principle, the carboxyl groups also allow for the covalent attachment of functional molecules to the lamellar crystals using well established strategies for amide bond formation. However, the fold surfaces of the crystals need to be highly ordered so that the carboxyl groups are accessible for functionalization.From x-ray scattering in semicrystalline bulk, we found that precisely spaced side-groups do not predefine the thickness of the crystalline core under all crystallization conditions. In addition, the part of the fold layer containing carboxyl groups had a considerable thickness, indicating that there is a substantial disorder in the fold surfaces of lamellar crystals of polymers containing precisely spaced side-branches.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Anmerkungen
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Albert-Ludwigs-Universität Freiburg, Dissertation, 2016
- Klassifikation
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Chemie
- Ereignis
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Veröffentlichung
- (wo)
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Freiburg
- (wer)
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Universität
- (wann)
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2016
- Urheber
- Beteiligte Personen und Organisationen
- DOI
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10.6094/UNIFR/11069
- URN
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urn:nbn:de:bsz:25-freidok-110694
- Rechteinformation
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Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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25.03.2025, 13:46 MEZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Objekttyp
- Hochschulschrift
Beteiligte
- Machatschek, Rainhard Gabriel
- Bartsch, Eckhard
- Universität
Entstanden
- 2016