Two-dimensional heterospectral correlation analysis of wide-angle X-ray scattering and infrared spectroscopy for specific chemical interactions in weakly interacting block copolymers
Article Abstract:
Two dimensional correlation spectroscopy of infrared (IR) spectroscopy as well as 2 dimensional wide-angle X-ray scattering (WAXS)-IR heterospectral correlation spectroscopy is used to investigate in detail the phase behavior of polystyrene-block-poly(n-pentyl methacrylate) copolymers (PS-PnPMA). It is found that the synchronous 2D WAXS-IR heterospectral correlation spectrum of the ordered state is completely different from that in the two disordered states.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Characterization of concentration-dependent infrared spectral variations of urea aqueous solutions by principal component analysis and two-dimensional correlation spectroscopy
Article Abstract:
By applying principal component analysis and two dimensional correlation spectroscopy to concentration dependent FTIR spectra of aqueous urea solutions, the association behavior of urea as a function of urea concentration was elucidated. In the PCA, the spectral changes with increasing urea concentrations could be reconstructed using two principal components.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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Electrochemistry of conductive polymers. 34. Two-dimensional correlation analysis of real-time spectroelectrochemical data for aniline polymerization
Article Abstract:
Electrochemical polymerization of aniline is studied using real-time spectrochemical experiments conducted concurrently with potentiodynamic scans in a nitric acid electrolyte with its pH adjusted to 0.50. Two-dimensional correlation spectral analysis and subsequent extraction of pure component spectra led to positive identification of intermediate species.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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