聚丙烯腈不溶于丙烯腈。

Polyacrylonitrile is insoluble in acrylonitrile.

通过液相稳定化法制备了聚丙烯腈稳定化纤维。

The stabilized polyacrylonitrile fiber was prepared by the method of liquid-phase stabilization and carbonized in nitrogen atmosphere.

研究了磷酸对聚丙烯腈基低温碳材料的改性作用。

Modification function of phosphoric acid to low temperature carbon based on polyacrylonitrile was investigated.

因此，认为纤维素和聚丙烯腈在非晶区具有一定的相容性。

Then, we consider that the cellulose and polyacrylonitrile are somewhat compatible in their amorphous area.

提出了纺制耐热性好的聚丙烯腈中空纤维膜可能的方法和意义。

It also suggests the method of spinning the heat resistance PAN hollow fiber membrane and its significance.