The near infrared spectra of some polyamic acid resins | Zendy

Crandall E. W. | Zendy; Johnson E. L. | Zendy; Smith C. H. | Zendy

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The near infrared spectra of some polyamic acid resins

Author(s) -

Crandall E. W.,

Johnson E. L.,

Smith C. H.

Publication year - 1975

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1975.070190325

Subject(s) - infrared , infrared spectroscopy , amide , amine gas treating , ultraviolet , absorption (acoustics) , spectral line , materials science , photochemistry , absorption band , chemistry , analytical chemistry (journal) , polymer chemistry , organic chemistry , optics , optoelectronics , composite material , physics , astronomy

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.

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