Interpretation of multiple melting behaviour in poly (ether ether ketone) revisited: Two-dimensional correlation mapping approach
Interpretation of multiple melting behaviour in poly (ether ether ketone) revisited: Two-dimensional correlation mapping approach
复制标题
DOI：
10.1007/s10973-021-10964-3
复制
发表时间：
2021-07-10
影响因子：
4.4
通讯作者：
Alsayes, Ghina
中科院分区：
文献类型：
--
作者：
Al Lafi, Abdul G.;Alsayes, Ghina
二维相关映射（2D-CM）是近年来发展起来的一种新的分析工具，已成功地应用于分析化学领域的许多问题。利用该方法分析了不同聚醚醚酮（PEEK）样品的差示扫描量热（DSC）曲线。使用2D-CM能够关联来自不同DSC测量的数据，并提取与PEEK的双熔融行为相关的信息。特别是，结果表明，在596.5和617.0 K的两个主要熔化过程代表两种不同的晶体类型。增厚的晶体只发生在较高的熔化过程中，而小尺寸的晶体有助于较低的熔化，使它们能够在较低的温度下扩散和熔化。所形成的晶体的热稳定性和几何特征是所观察到的多重熔融行为的驱动力。2D-CM分析提供了多种先进的方法来关联和分析DSC数据，并使提取结论变得简单。
Two-dimensional correlation mapping (2D-CM) is a newly developed analytical tool, which has been applied successfully to solve many problems in the field of analytical chemistry. It was used in the present work to analyse the differential scanning calorimetry (DSC) curves of different poly (ether ether ketone) (PEEK) samples. The use of 2D-CM enabled to correlate data from different DSC measurements and extract information related to the double melting behaviour of PEEK. In particular, the results indicated that the two main melting processes at 596.5 and 617.0 K represented two different crystal types. Thickening of crystals occurred only with the higher melting process, whilst the small size of crystals contributed to the lower melting enabled them to diffuse and melt at lower temperatures. Thermal stability and geometry characteristics of formed crystals were the driving force for the observed multiple melting behaviour. 2D-CM analysis provided a variety of advanced methods to correlate and analyse DSC data and made extracting conclusions straightforward.