Polyester Preparation in the Presence of Pristine and Phosphonic-Acid-Modified Zirconia Nanopowders

Autor(en)

Jakob Svehla, Silvia Pabisch, Bernhard Feichtenschlager, Dietmar Holzmann, Herwig Peterlik, Guido Kickelbick

Abstrakt

A novel zirconia polyester nanocomposite is prepared using an in situ approach. Surface-functionalized zirconia nanoparticles are obtained by attaching 3-phosphonopropionic acid to the metal oxide. Neat and surface-covered metal oxide particles are incorporated at the beginning of the polyesterification reaction of isophthalic acid and neopentyl glycol resulting in zirconia/poly(neopentyl isophthalate) (PNI) nanocomposites. TEM shows that the dispersibility of the inorganic filler is improved by covering the zirconia surface with carboxylic acid groups. These results are verified by SAXS. Rheological measurements reveal that the viscosities are increasing compared to pristine PNI at particle loads of 10 wt% (neat zirconia) and 5 wt% (phosphonic-acid-capped zirconia), respectively.

Organisation(en)

Dynamik Kondensierter Systeme

Externe Organisation(en)

Technische Universität Wien, TIGER Coatings GmbH & Co KG, Universität des Saarlandes

Journal

Macromolecular Materials and Engineering

Band

297

Seiten

219-227

Anzahl der Seiten

9

ISSN

1438-7492

DOI

https://doi.org/10.1002/mame.201100191

Publikationsdatum

2012

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/polyester-preparation-in-the-presence-of-pristine-and-phosphonicacidmodified-zirconia-nanopowders(1e914cba-1eff-4bc4-8782-64b681df35b1).html