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Dynamics and properties of high performance amorphous Cyanate Ester-based subnanocomposites with ultralow silica content and quasi-regular structure.
- Source :
-
Polymer . Oct2016, Vol. 103, p36-40. 5p. - Publication Year :
- 2016
-
Abstract
- We have fabricated amorphous polymer composites with ultralow silica contents (e.g., 0.1 wt %), without nano- or microclusters but with silica units distributed quasi-regularly within the polymer network matrix. This fact and other data obtained imply the existence of subnanometer-sized silica nodes (SNSSN) only in this case which are connected covalently with the matrix, i.e., the formation of the hybrid subnanocomposites . In this work, the densely cross-linked Cyanate Ester Resins (CER)-based composites with 0.1–10 wt % silica, introduced by a sol-gel method, were synthesized and investigated by HAADF STEM, EDXS, far-IR spectroscopy, DMA and DSC. The obtained subnanocomposites manifest an extremely high “constrained dynamics” effect and superiority in thermal and mechanical properties compared to those of the nanocomposites with higher silica contents. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00323861
- Volume :
- 103
- Database :
- Academic Search Index
- Journal :
- Polymer
- Publication Type :
- Academic Journal
- Accession number :
- 125179121
- Full Text :
- https://doi.org/10.1016/j.polymer.2016.09.020