Abstract
Phthalonitrile compounds with siloxane bridges are recently suggested for producing thermosetting polymer composites with expanded processing range, excellent mechanical properties, and increased thermo-oxidative stability. Mesoscale chemistry concept is adopted to describe multipathway curing process in phthalonitriles by adding triple link (triazine) formation into chemical reactions scheme. Coarse-grained dissipative particle dynamics simulations have shown significant changes in matrix topology and mechanical properties with increase of the triazine reaction rate. In contrast to typical changes induced by high functionality crosslinkers, matrices with high content of triazine reach higher conversion degree, are less topologically interconnected, and are softer than ones without triazine.
Original language | English |
---|---|
Article number | 1700015 |
Journal | Macromolecular Theory and Simulations |
Volume | 26 |
Issue number | 4 |
DOIs | |
State | Published - Jul 2017 |
Externally published | Yes |
Keywords
- DPD
- matrix curing
- mechanical properties
- mesoscale simulations
- phthalonitriles
- triple links
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry