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Photochemical Synthesis of polymeric Fiber Coatings and their Embedding in Matrix Material : Morphology and nanomechanical Properties at the Fiber-Matrix Interface

Titelangaben

Kuttner, Christian ; Tebbe, Moritz ; Schlaad, Helmut ; Burgert, Ingo ; Fery, Andreas:
Photochemical Synthesis of polymeric Fiber Coatings and their Embedding in Matrix Material : Morphology and nanomechanical Properties at the Fiber-Matrix Interface.
In: ACS Applied Materials & Interfaces. Bd. 4 (Juni 2012) Heft 7 . - S. 3485-3492.
ISSN 1944-8252
DOI: https://doi.org/10.1021/am300576c

Volltext

Link zum Volltext (externe URL): Volltext

Abstract

In this contribution, we present a three-step pathway to produce a novel fiber coating, study its embedding in epoxy resin and characterize its nanomechanical properties at the interface between fiber and matrix. Inorganic surfaces were sulfhydrylated for subsequent use in thiol-initiated ene photopolymerization. The influence of water on the sulfhydrylation process was studied to find conditions allowing monomolecular deposition. Surface morphology as well as SH-content was evaluated by UV/Vis spectroscopy, atomic force microscopy and spectroscopic ellipsometry. Brush-like polymer layers (PS and PMMA) were introduced by UV-light initiated surface polymerization of vinyl monomers. Polymer growth and morphology were studied. After embedding, the nanomechanics of the interfacial region of the fibers was studied. AFM force spectroscopy allowed the mapping of the stiffness distribution at the cross-section of the composite with high spatial resolution. Elastic moduli were determined by Hertzian contact mechanics. The individual phases of the composite material (fiber, interphase, and matrix) can be clearly distinguished based on their mechanical response. The synthesis, morphology and mechanical properties of an interphase based on a polymeric graft-film swollen with matrix material are shown, and perspectives of these novel coatings for improved matrix-fiber compatibility and interfacial adhesion are discussed.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: Thiol-ene; Fiber, Nanomechanics
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Ehemalige Professoren > Lehrstuhl Physikalische Chemie II - Univ.-Prof. Dr. Andreas Fery
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Physikalische Chemie II
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Ehemalige Professoren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften
500 Naturwissenschaften und Mathematik > 530 Physik
500 Naturwissenschaften und Mathematik > 540 Chemie
Eingestellt am: 05 Dec 2014 09:54
Letzte Änderung: 05 Dec 2014 09:54
URI: https://eref.uni-bayreuth.de/id/eprint/3957