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The near infrared spectra of some polyamic acid resins (1975)

Crandall, E. W. ; Johnson, E. L. ; Smith, C. H.

New York, NY [u.a.] : Wiley-Blackwell

Journal of Applied Polymer Science 19 (1975), S. 897-903

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ISSN: 0021-8995

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: The absorption spectra of a series of polyamic acids prepared using various reaction conditions were studied using the ultraviolet (UV), visible, and near-infrared (IR) ranges. The near-IR proved most valuable; the amidization and imidization processes could be followed by observing the change of intensities of the 1950-nm combination amine band and a band at 2300 nm assumed to be a function of the amide group.

Additional Material: 2 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/app.1975.070190325

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