Using Agrawal integral equation and thermogravimetric analysis (TGA) to study the pyrolysis kinetics of nanocomposites of polybenzoxazine and exfoliated montmorillonite from a mono-functionalized azide polyhedral oligomeric silsesquioxane and click chemistry

作者：Cui, Hui Wang^*; Kuo, Shiao Wei

来源：Polymer Bulletin, 2013, 70(11): 3143-3153.

DOI：10.1007/s00289-013-1013-1

• Nanocomposites
• Polybenzoxazine
• Montmorillonite
• POSS
• Pyrolysis kinetics

In this study, an exfoliated montmorillonite was prepared through click chemistry from a singly azido-functionalized polyhedral oligomeric silsesquioxane derivative and a montmorillonite intercalated with propargyldimethylstearylammonium bromide. This exfoliated montmorillonite was then introduced into a benzoxazine matrix-prepared from paraformaldehyde, aniline, and phenol-to form polymer/exfoliated clay nanocomposites. Thermogravimetric analysis revealed that the pyrolysis kinetics had a close relationship with the structure of montmorillonite, the assembly process, the anchoring effect, the compatibility of the polymer and intercalator, and the char yield. The polymer/exfoliated clay nanocomposites had a same mechanism function, and the kinetic compensation effect equations revealed the pyrolysis essences.

• 出版日期2013-11
• 单位中山大学