Zhao, Zhengping, Qiang Guo, Sigang Zhang, Jinliang Sun, and Zhijun Nie. “Synthesis and Characterization of Novel Aromatic Polyamides Based on New Aromatic Poly(phosphazene-Diamine) Monomer”. Asian Journal of Chemistry 23, no. 12 (September 26, 2011): 5407–5410. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/11148.