Position-resolved microstructure in a single spherulite of iPP is quantitatively studied by synchrotron microfocus wide angle X-ray scattering. The results show that the normal of mother lamellae in a spherulite is aligned mainly perpendicular to the radius, and the subsidiary daughter lamellae are inclined 80.75° with respect to that of the dominant mother lamellae. The crystallinity in the spherulite is in the range of 46%–56%, which is rarely influenced by the crystallization temperature. The ratio between the daughter lamellae and the mother lamellae is 0.18 when iPP crystallizes at 138 °C and it decreases to 0.11 as the crystallization temperature is decreased to 130 °C. The b-axis and c-axis in the mother lamellae tend to orient perpendicular to the radius direction, and the a-axis prefers to align in the radius direction.

通过同步加速器微焦点广角X射线散射定量研究了iPP单个球晶中的位置分辨微观结构。结果表明，球晶中的母片法线主要垂直于半径排列，并且子代子片相对于优势母片的法线倾斜80.75°。球晶的结晶度在46％–56％的范围内，这几乎不受结晶温度的影响。当iPP在138°C结晶时，子层和母层之间的比率为0.18，随着结晶温度降低到130°C，比率降低到0.11。的B-轴和Ç -母薄片中的轴倾向于垂直于半径方向定向，而a轴则倾向于沿半径方向对齐。