Synthesis and Properties of Acetylene Terminated Sulfone (ATS)
Abstract
The utilization of acetylene end-groups on phenylquinoxaline oligomers has provided a wide variety of new and improved matrix resins. The cured thermoset quinoxaline systems exhibit excellent moisture resistance which demonstrated the moisture insensitivity of the polyene product of the acetylene cure reaction. In an effort to use this technology in systems which process and handle like current state-of-the-art epoxies, the thermoset system 4,4'-bis(3- ethynylphenoxy)diphenylsulfone (ATS) was synthesized for characterization and evaluation as 350 deg F matrix system. Thermal analytical data obtained on ATS indicated a Tg at 0 deg C and a strong polymerization exotherm maximizing at 240 deg C. Cured ATS samples exhibited excellent thermal oxidative properties as evidenced by isothermal aging in air at 500 deg F and 600 deg F. Synthetic routes to ATS are included as well as physical properties of the system before/after cure.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1980
- Accession Number
- ADA086148
Entities
People
- F. E. Arnold
- G. A. Loughran
Organizations
- Wright Laboratory