Synthesis and Characterization of Polyazodiphenylene Phenylphosphonates

Abstract

Abstract: Anew polyazophosphonate, polyazodiphenylene phenylphosphonate(PAPPP) was obtained by the interfacial polycondensation of phenylphosphonic dichloride with 4,4-dihydroxyazobenzene. The structure of the polymer was confirmed by FTIR, ¹H NMR, ³¹ P NMRand elemental analysis. The thermal behavior was evaluated by DSCand TG, the high residue of PAPPPis due to the presence of nitrogen and phosphorus in the same mainchain. Nitrogen appears to have a somewhat synergistic flame retardant effect with phosphorus. PETsamples containing 5% and 10%(mass ratio) PAPPPhave limiting oxygen index values of 28.2 and 33.4. It may be concluded that nitrogen containing polyphosphonate possesses superior flame retardancy.

Key words: Polyaphosphonate ester, Flame retardancy, Interfacial polycondensation

CLC Number:

O631

TrendMD:

TANG Xu-Dong, CHEN Xiao-Ting, WANG Yu-Zhong, YANG Ke-Ke, WU Da-Cheng . Synthesis and Characterization of Polyazodiphenylene Phenylphosphonates[J]. Chem. J. Chinese Universities, 1998, 19(11): 1869.

[1]	GAO Jing, HE Wentao, WANG Xinxin, XIANG Yushu, LONG Lijuan, QIN Shuhao. Preparation of DOPO Derivative Modified Carbon Nanotubes and Their Effect on Flame Retardancy of Polylactic Acid [J]. Chem. J. Chinese Universities, 2022, 43(3): 20210670.
[2]	YIN Ping,YAN Hongqiang,CHENG Jie,FANG Zhengping. Synthesis and Properties of a Novel Bio-based Benzoxazine^† [J]. Chem. J. Chinese Universities, 2019, 40(5): 1071.
[3]	WANG Na,YANG Fei,ZHANG Jing,FANG Qinghong. Inflame-retardant Water-borne Epoxy Resin of APP Microsphere with Carrageenan Cladding^† [J]. Chem. J. Chinese Universities, 2019, 40(2): 385.
[4]	LU Lingang,CHENG Zhe,QIU Xinming,WANG Huiya,YANG Shousheng,QIAN Xiaodong,WANG Xuebao. Preparation of Green Star-topology Phosphazene Flame Retardant and Properties of Flame-retardant Epoxy Resin^† [J]. Chem. J. Chinese Universities, 2018, 39(12): 2789.
[5]	LIU Ziyi, XU Miaojun, WANG Qi, LI Bin. Preparation and Properties of Flame Retardant Cotton Fabric by Surface Chemical Grafted Modification [J]. Chem. J. Chinese Universities, 2017, 38(8): 1477.
[6]	ZHANG Weiwei, XUE Zhixin, LIU Jingjing, YAN Miao, XIA Yanzhi. Flame-retardant Property of Carrageenan Fiber^† [J]. Chem. J. Chinese Universities, 2017, 38(2): 303.
[7]	GUO Zhenghong, FANG Zhengping, CHEN Chao. Synergistic Flame Retardant and Suppression Smoke Mechanism of Cerium Phenylphosphonate and Decabromodiphenyl Oxide in Glass-fiber Reinforced Poly(1,4-butylene terephthalate) Composites^† [J]. Chem. J. Chinese Universities, 2017, 38(2): 284.
[8]	ZHAO Shishi, HE Meng, SONG Wenyao, ZHANG Chong, XU Jianzhong, MA Haiyun. Synthesis of a Phosphorus/Nitrogen/Sulphur Containing Phosphazene Micro-Nanotube and Its Flame Retardancy on Epoxy Nanocomposite^† [J]. Chem. J. Chinese Universities, 2017, 38(12): 2337.
[9]	TANG Qiheng, AI Qingsong, YANG Rongjie, HE Jiyu. Synthesis and Flame Retardancy of Novel Thermally Stable Poly(imideurethane)s Containing Imide and Alkynyl Groups in Main Chain [J]. Chem. J. Chinese Universities, 2014, 35(1): 199.
[10]	FAN Haibo, YANG Rongjie. Polyimide Membranes Modified by Polyhedral Oligomeric Silsesquioxane [J]. Chem. J. Chinese Universities, 2014, 35(1): 180.
[11]	XU Dong-Mei, DING Fei, HAO Jian-Wei, DU Jian-Xin. Preparation of Modified Expandable Graphite and Its Flame Retardant Application in Rigid Polyurethane Foam [J]. Chem. J. Chinese Universities, 2013, 34(11): 2674.
[12]	CHEN Xiao-Ting, TANG Xu-Dong, WANG Yu-Zhong  . Synthesis and Thermal Behavior of Phosphorus-containing Thermotropic Wholly Aromatic Copolyesters [J]. Chem. J. Chinese Universities, 2002, 23(3): 508.
[13]	SHI Lai-Shun, WANG Jian-Qi . The Investigation of Flame Retardancy for Polyethylene Treated by Plasma Grafting of Methylacrylic Acid [J]. Chem. J. Chinese Universities, 2001, 22(3): 489.
[14]	LIU Su-Huai, ZHANG Shu-Fan, QI Zong-Neng, ZHANG Guang-Li, ZHANG Hong-Zhi. Preparation and Characterization of Amorphous Poly(ethylene terephthalate) [J]. Chem. J. Chinese Universities, 2001, 22(10): 1748.
[15]	QI Ying-Hua, CHEN Tian-Lu, JIANG Hong-Yan, LI Hai-Bo, XU Ji-Ping . Synthesis of Cyclic Aryl Ether Sulfone Oligomers Through Interfacial Polycondensation Method [J]. Chem. J. Chinese Universities, 1998, 19(12): 2029.

Synthesis and Characterization of Polyazodiphenylene Phenylphosphonates

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments