摘要
从聚丙烯腈（ＰＡＮ）热裂解产物的ＩＲ吸收光谱得到了与热裂解温度Ｔｐ有关，并从元素分析结果确定ＰＡＮ在绝氧条件下热解材料的化学结构。结果在明，裂解过程中出现一种具有共轭－Ｃ＝Ｎ与碳骨架平行的中间结构；随着Ｔｐ的升高，Ｎ、Ｈ元素逐渐减少，样品石墨化程度依次增大，最后的聚合物具有－Ｃ＝Ｎ和Ｃ＝Ｃ共轭的梯形网状结构。
The results of measurement of IR adsorption spectra of pyrolytic polyacrylonitrile(PAN) are presented as a function of the pyrolytic temperature(Tp),the results of elementary analysis of all samples are given to help determine chemical structure of the pyrolytic materials of PAN under no oxygen.The results show that during pyrolysis a mid-structure having conjugated C=N parallel to the carbon backbone is formed;with the increase of Tp,N and H elements gradually decrease,the degree of graphitization of samples increase,the polymer finally has a ladder-shaped reticular structure having C=N conjugating with C=C.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1995年第5期123-125,共3页
Polymer Materials Science & Engineering
关键词
红外光谱
聚丙烯腈
热裂解
s:infrared spectrum,polyacrylonitrile,pyrolysis
