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We propose tabular two-dimensional correlation analysis for extracting features from multifaceted characterization data, essential for understanding material properties. This method visualizes similarities and phase lags in structural parameter changes through heatmaps, combining hierarchical clustering and asynchronous correlations. We applied the proposed method to datasets of carbon nanotube (CNTs) films annealed at various temperatures and revealed the complexity of their hierarchical structures, which include elements like voids, bundles, and amorphous carbon. Our analysis addresses the challenge of attempting to understand the sequence of structural changes, especially in multifaceted characterization data where 11 structural parameters derived from 8 characterization methods interact with complex behavior. The results show how phase lags (asynchronous changes from stimuli) and parameter similarities can illuminate the sequence of structural changes in materials, providing insights into phenomena like the removal of amorphous carbon and graphitization in annealed CNTs. This approach is beneficial even with limited data and holds promise for a wide range of material analyses, demonstrating its potential in elucidating complex material behaviors and properties., Comment: 15 pages, 4 figures

We achieved the synthesis, processing, properties, and morphology of polymeric nanocomposites made using highly carboxylated, soluble, ultra-short (lengths less than 60 nm) single-walled carbon nanotubes (US-SWNTs). The epoxy composite system reinforced with 0.5 wt% or I wt% of US-SWNTs has shown an average 15% increase in tensile modulus and 50% increase in tensile toughness over those of the neat epoxy, demonstrating the reinforcement efficacy of US-SWNTs in a thermoset matrix. Copolymerization of short (avg. length 60 nm) carboxylic acid functionalized SWNTs with PBO oligomers was successfully carried out in a mixed solvent of polyphosphoric acid and methanesulfonic acid (MSA) in the presence of P2O5 at 3.3 wt% concentration and 150 0C. The SWNTs were homogeneously distributed throughout the films of copolymerized products. Reaction-induced crystallization of oligomers was applied for the preparation of single-walled carbon nanotubes (SWNTs)/poly(p-oxybenzoyl) (POB) crystals using SWNTs as a nucleating agent. The research, detailed in the publications and prior technical reports, is larger than 2 MB.