Knowledge Bank

“The infrared spectrum of polyacrylonitrile has been measured from $3200cm-1$ to $70cm-1$. Polarization measurements were obtained on stretched and rolled specimens in the range of $3200cm-1$ to $350cm-1$. The bands have been assigned with the aid of previous studies of high polymer spectra, including an analysis of the skeletal vibrations, and an approximate calculation of the normal frequencies of the nitrile group. A detailed analysis of the spectrum will be discussed.”