Loading…
Phthalonitrile terminated fluorene based copolymer with outstanding thermal and mechanical properties
[Display omitted] •Novel phthalonitrile copoly-oligomers were synthesized by an improved method.•Oligomers exhibited good processability for prepreg and hot-press manufacture.•Glass transition temperatures of cured polymers were higher than 450 °C.•Bending strength reached 942 MPa, capable as struct...
Saved in:
Published in: | European polymer journal 2019-04, Vol.113, p.1-11 |
---|---|
Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | [Display omitted]
•Novel phthalonitrile copoly-oligomers were synthesized by an improved method.•Oligomers exhibited good processability for prepreg and hot-press manufacture.•Glass transition temperatures of cured polymers were higher than 450 °C.•Bending strength reached 942 MPa, capable as structural composite matrices.
A novel series of phthalonitrile terminated fluorene based copoly-oligomers (BPNs) were designed and synthesized by an improved method and could be cured in the presence of bis[4-(4-aminophenoxy)phenyl]sulfone. The structure of oligomers was characterized, while their curing behavior was systematically studied. The oligomers exhibited good solubility, which facilitated the preparation of prepregs. Later quartz fiber reinforced composites were prepared by hot-pressing process, and their thermal and mechanical properties were characterized. The glass transition temperatures of the composites were higher than 450 °C, and the bending strength reached 942 MPa. The combination of excellent thermal and mechanical performance indicated BPNs could be potentially applied in high performance composites or as universal modifiers for heat resistant resins. |
---|---|
ISSN: | 0014-3057 1873-1945 |
DOI: | 10.1016/j.eurpolymj.2019.01.040 |