2 research outputs found
Characterization of Fibrous Aggregated Morphologies and Other Complex Architectures Self-Assembled from Helical Alkyne and Triazole Polycarbodiimides (<i>R</i>)- and (<i>S</i>)‑Families in the Bulk and Thin Film
We report here the self-assembly
studies of 22 polycarbodiimides
(PCDs) in complex morphologies such as fibers, looped fibers, fibrous
networks, ribbons, worm-like aggregates, toroidal structures, and
craters that were examined by combination of TMAFM, TEM, SEM, and
powder XRD methods as well as semiempirical modeling. Morphology characterization
in the thin film (TMAFM, TEM) and in bulk (SEM, pXRD) revealed the
formation of fiber-like aggregates assembled from the bundles of individual
helices. In certain cases superhelical motifs of both right- and left-handed
screw senses were identified. It seemed likely that the great variety
of morphologies observed is a result of extensive hydrophobic side
chain/side chain interactions of the singular polycarbodiimide strands