Synthesis and Properties of Arylethersulfone Thermoset Systems
Abstract
A series of acetylene-terminated (AT) oligomeric arylether sulfones were synthesized which upon curing possess higher molecular weight between crosslinks than earlier AT sulfones. A correlation between varying chain length of the oligomer and initial/final glass transition temperature (Tgs) was established which provides the required processing parameters and use temperatures. In all cases the initial Tg was dependent on the flexibility of the oligomeric backbone. The more flexible backbone structures provided the lower Tg's for processing. The final Tg's (cured Tg) which establish end use- temperatures were dependent on the varying chain length of the oligomer, as well as, backbone flexibility. The longer more flexible backbones provided lower end use temperatures. Of the twelve systems synthesized and characterized, one was selected for scale-up (50g.) and is currently being evaluated with respect to its neat resin mechanical properties.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1985
- Accession Number
- ADA154811
Entities
People
- B. Evans
- F. Arnold
- J. Kane
- L. Picklesimer
- P. Lindley
Organizations
- Wright Laboratory