Spectroscopic manifestations of nitrile group intermolecular attraction in PAN

被引：10

作者：

Andreeva, O.A. ^{[1
]}

Burkova, L.A. ^{[1
]}

机构：

[1] St. Petersburg Univ. Des. Technol., Bolshaya Morskaya 18, 190065 St. Petersburg, Russia

来源：

Journal of Macromolecular Science - Physics | 2000年 / 39 (B)卷 / 02期

关键词：

Glass transition - Infrared spectroscopy - Thermal effects - Thermal expansion;

D O I：

10.1081/MB-100100381

中图分类号：

学科分类号：

摘要：

We studied the temperature behavior of the nitrile-stretching band during heating and cooling of polyacrylonitrile (PAN) and the effect of thermal treatment regimes on this behavior. The spectroscopic manifestations of nitrile group intermolecular pairing at temperatures below Tg and the polymer thermal expansion at temperatures higher than Tg were registered. A comparison of data obtained in different thermal regimes showed that the nitrile group intermolecular attraction influences both the cyclization reaction and its manifestation in the PAN infrared (IR) spectra.

引用

页码：225 / 234