The structural evolution of poly(ε-caprolactone) (PCL) during uniaxial tensile deformation at 25 °C was examined using small- and wide-angle X-ray scatterings (SAXS and WAXS) techniques with simultaneous stress and strain (S–S) curves.

根据waxs数据计算了pcl的重量结晶度x，因此求得其体积结晶度s）。在不同tc下结晶的pcl样品的vc wax（相关性）saxs谱线做一维函数（1dcf） ）分析，得到了 pcl 的片晶长周期（lp）和无定形层厚度（la）。

聚（ε-己内酯）（pcl）在25°c单轴拉伸变形过程中的结构演变使用小角度和广角x射线散射（saxs和waxs）技术同时进行应力和应变（s–s）检验曲线。 最近升级的浦项同步加速器辐射源上的高能X射线束揭示了PCL的完整层状变形行为。

2023年3月27日 · Microstructural information has been studied by the synchrotron SAXS/WAXS. Poly (lacticacid) (PLA) fiber-reinforced poly (ε-caprolactone) (PCL) composite is used in a broad variety of biocompatible and biodegradable materials, while phase separation remains an obstacle to mechanical performance.

2020年8月26日 · WAXD is employed to detect the crystalline structure and orientation of the PCL phase, while SAXS is used to characterise the size and orientation of lamellae and amorphous regions.

该研究组研究发现，pcl在结晶诱导期内saxs的散射强度转变早于waxs散射强度，表明在熔体中形成三维有序的结晶之前体系内首先形成了预有序结构，随着结晶的进行pcl片晶是预有序结构演变形成，这一现象不能用经典的高分子结晶成核与生长理论进行解释。

1994年11月21日 · 通过使用差示扫描量热法（dsc），动态力学分析（ dma）和广角x射线散射（waxs）技术，并与偏光光学显微镜获得的结果进行了定性比较。 事实证明，PCL–CAB系统是部分可混溶的，而PCL–CDA和PCL–CTA似乎是不可混溶的。

2020年10月1日 · WAXD and SAXS patterns of online and offline drawn melt-spun PCL filaments were recorded on a Bruker Nanostar U diffractometer (Bruker AXS, Germany) with Cu-Kα radiation (λ = 1.5419 Å) and a VÅNTEC-2000 MikroGap area detection system. A beam defining pinhole of 300 µm was used.

The time-dependent structural evolution extracted from the SAXS/WAXS/DSC results can be characterized by the following four stages in the PCL crystallization process: the induction (I), nucleation (II), growth (III), and late (IV) stages.

The WAXS pattern for the PCL/PVB/DBS specimen (Figure 3 d) is also substantially anisotropic. In contrast to the PCL/DBS sample, the 110 reflection is most intense on the meridional section...