✦ LIBER ✦
Dynamic mechanical analysis on highly thermally stable polybenzoxazines with an acetylene functional group
✍ Scribed by Hyun Jin Kim; Zdenka Brunovska; Hatsuo Ishida
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 173 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
Dynamic mechanical analysis is performed on polybenzoxazines from acetylene-terminated benzoxazine monomers, and glass transition temperatures of these polybenzoxazines are found in the range of 329 -368°C. It has been identified that the high glass transition temperature and high thermal stability are due to polymerization of the acetylene terminal group, in addition to oxazine ring polymerization through a comparison study with analogous polybenzoxazines that are obtained from monomers without an acetylene functional group.