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Synthesis and Characterization of Phenylethynyl Terminated Poly(arylene ether sulfone)s as Thermosetting Structural Adhesives and Composite Matrices
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mecham, Sue Jewel |
| Copyright Year | 1997 |
| Abstract | High temperature, solvent resistant materials which also display good mechanical properties are desired for use as aerospace structural adhesives and polymer matrix/carbon fiber composites. High molecular weight amorphous poly(arylene ether sulfone) thermoplastic materials display many of these desirable characteristics but are deficient in solvent resistance. Previous attempts to prepare poly(arylene ether) based thermosets to improve solvent resistance have been largely unsuccessful due to processiblity issues from the low curing temperature and high glass transition temperature of the thermoset precursor. Incorporation of a high temperature curable (≥ 350°C) endgroup such as 3-phenylethynylphenol in the synthesis of controlled molecular weight poly(arylene ether sulfone) oligomers has allowed for a large processing window prior to the exothermic cure that forms the desired networks. Control of oligomer molecular weight and backbone structure has allowed for further control of the processing, thermal transitions and adhesive properties of the thermosets. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://scholar.lib.vt.edu/theses/public/etd-01498-144548/materials/SJMDissertation.pdf |
| Alternate Webpage(s) | https://theses.lib.vt.edu/theses/available/etd-01498-144548/unrestricted/SJMDissertation.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |