Publications

Variation of the crosslinking density in cluster-reinforced polymers

Author(s)
Johannes Kreutzer, Xiao-Hua Qin, Christian Gorsche, Herwig Peterlik, Robert Liska, Ulrich Schubert
Abstract

Inorganic-organic hybrid materials were prepared by free radical polymerization of the clusters Zr4O2(methacrylate)12 or Zr4O2(methacrylate)12-x(pivalate)x and 2-hydroxyethyl methacrylate. Increasing either the proportion of Zr4O2(methacrylate)12 or varying the number of methacrylate ligands in Zr4O2(methacrylate)12-x(pivalate)x

allowed to distinguish between filler and crosslinking effects on the

polymer properties. The induction period of photopolymerization, storage

and loss modulus, swellability and glass transition temperature

depended on the crosslinking ability of the clusters, while onset of the

thermal degradation and char formation were traced back to filler

effects, i.e. the cluster proportion in the polymer. Small angle X-ray

scattering experiments showed that the clusters are homogeneously

distributed in the polymer when the proportion of Zr4O2(methacrylate)12

was varied. The clusters increasingly agglomerated, however, when the

number of polymerizable ligands per cluster was decreased at constant

cluster loading.

Organisation(s)
Dynamics of Condensed Systems, Faculty Center for Nano Structure Research
External organisation(s)
Technische Universität Wien
Journal
Materials Today Communications
Volume
5
Pages
10-17
No. of pages
8
DOI
https://doi.org/10.1016/j.mtcomm.2015.09.001
Publication date
12-2015
Peer reviewed
Yes
Austrian Fields of Science 2012
Solid state physics, Condensed matter, Materials physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/variation-of-the-crosslinking-density-in-clusterreinforced-polymers(7486622d-7871-4091-b6d2-6d8ff0231eaf).html