Morphology and thermal properties of polyhedral oligomeric silsesquioxane/polybutadiene nanocomposites prepared by anionic polymerization

作者：Liao Mingyi; Fan Cheng; Jin Meihua

来源：Polymer Science - Series A, 2012, 54(9): 738-743.

DOI：10.1134/S0965545X12080056

The morphology and thermal properties of Allylisobutyl Polyhedral Oligomeric Silsesquioxane (POSS)/Polybutadiene (PB) nanocomposites prepared through anionic polymerization technique were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The results of XRD, SEM and TEM showed that the aggregation of POSS in PB matrix occurred obviously, forming crystalline domains and the size of POSS particles increased with increasing POSS content. The DSC and TGA results indicated that the glass transition temperature (T (g)) of the nanocomposites was significantly increased and the maximum degradation temperature (T (dmax)) of nanocomposites was slightly increased compared with pure PB, implying an increase in thermal stability.

• 出版日期2012-9
• 单位大连大学