Investigating Cross-Linking Parameters and Molecular Arrangement in Liquid Crystalline Epoxy Monomer with Aromatic Diamine: DSC-TOPEM and WAXS Analysis.

This study presents the characterization of cross-linking parameters of a liquid crystalline epoxy monomer with an aromatic diamine as a curing agent. The mixture tested consisted of bis [4-(10,11-epoxyundecanoyloxy)benzoate] p-phenylene (LCEM) and 1,3-phenylenediamine (1,3-PDA). This paper focuses on the structural characterization of such systems using X-ray analysis.

[Aortic aneurysym dissection in 80-year-old woman].

We present a case of 80-year-old woman with a history of paroxysmal atrial fibrillation admitted to the cardiology department due to syncope and chest pain with suspicion of pulmonary embolism. In course of further diagnostics the initial diagnosis was excluded and anticoagulant treatment was stopped. The real cause of the above signs and symptoms was aortic dissection.