Preparation and properties of polyhedral oligosilsequioxane tethered aromatic polyamide nanocomposites through Michael addition between maleimide-containing polyamides and an amino-functionalized polyhedral oligosilsequioxane

作者：Liu Ying Ling^*; Lee Hui Chen

来源：Journal of Polymer Science Part A: Polymer Chemistry , 2006, 44(15): 4632-4643.

DOI：10.1002/pola.21562

• modification
• nanocomposites
• polyamides
• polyhedral oligosilsequioxane (POSS)

Polyhedral oligosilsequioxane, (POSS) tethered aromatic polyamide nanocomposites with various POSS fractions were prepared through Michael addition between maleimide-containing polyamides and amino-functionalized POSS. The chemical structures of the polyamide-POSS nanocomposites were characterized with Fourier transform infrared and H-1 NMR. The polyamide-POSS nanocomposites exhibited good homogeneity in scanning electron microscopy and transmission electron microscopy observations. POSS modification increased the storage modulus and Young's modulus of the polyamides, slightly decreased their glass-transition temperatures from 312 to 305 degrees C, and significantly lowered their dielectric constants from 4.45 to 3.35.

• 出版日期2006-8-1