低聚聚酰亚胺(SPI)改性的聚酰亚胺(PI)固化物的制备和性能

朱国豪, 陈平, 徐计雷, 孙慧敏

Preparation and Properties of Curd Polyimide Modified by Oligomeric Polyimide

ZHU Guohao, CHEN Ping, XU Jilei, SUN Huimin

图4 未固化SPI改性PI聚合物薄膜的红外谱、2100~2300 cm-1范围苯乙炔基团的红外谱和固化后SPI改性PI聚合物薄膜的红外谱

Fig.4 FTIR spectra of uncured PI polymer film modified by SPI (a), FTIR spectra in the range of 2100~2300 cm-1 showcasing the pheny-lethynyl groups (b) and FTIR spectra of cured PI polymer film modified by SPI (c)