The flame-retardant material – 1. Studies on thermal characteristics and flame retardance behavior of phosphorus-containing copolymer of methyl methacrylate with 2-methacryloxyethyl phenyl phosphate

2006 ◽  
Vol 91 (11) ◽  
pp. 2683-2690 ◽  
Author(s):  
Guo-An Wang ◽  
Cheng-Chien Wang ◽  
Chuh-Yung Chen
2002 ◽  
Vol 77 (2) ◽  
pp. 227-233 ◽  
Author(s):  
Dennis Price ◽  
Kelly Pyrah ◽  
T.Richard Hull ◽  
G.John Milnes ◽  
John R Ebdon ◽  
...  

2014 ◽  
Vol 911 ◽  
pp. 423-427
Author(s):  
Sai Hua Jiang ◽  
Siu Ming Lo ◽  
Yuan Hu

A novel poly (methyl methacrylate) (PMMA) based copolymer was synthesized by bulk copolymerization of methyl methacrylate (MMA) and a phosphorus-containing monomer, acryloxyethyl phenoxy phosphorodiethyl amidate (AEPPA). The chemical structure of AEPPA was confirmed by FTIR,1H NMR and31P NMR. The structure of copolymers was characterized using FTIR. TGA results indicate that the thermal stability of copolymers was remarkably enhanced with the addition of APEEA. LOI and MCC results suggest that the flame retardancy of copolymers was also improved. Detailed flame-retardant mechanism is proposed. The char formation during degradation caused by APEEA plays a key role in the property improvements.


RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34659-34665 ◽  
Author(s):  
Chun Tian ◽  
Tianchi Xu ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
Xiulin Zhu

RAFT copolymerization of a phosphorus-containing monomer with α-hydroxy phosphonate PHMA and MMA was successfully conducted and the resultant well-defined copolymer material shows good superior flame-retardant properties and hydrophilicity.


Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 127 ◽  
Author(s):  
Yu Sun ◽  
Yazhen Wang ◽  
Li Liu ◽  
Tianyuan Xiao

A 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) acrylate, (6-oxidodibenzo [c,e][1,2] oxaphosphinin-6-yl) methyl acrylate (DOPOAA), has been prepared. Copolymers of styrene (St) and DOPOAA were prepared by emulsion polymerization. The chemical structures of copolymers containing levels of DOPOAA were verified using Fourier transform infrared (FT-IR) spectroscopy and 1H nuclear magnetic resonance (1H-NMR) spectroscopy. The thermal properties and flame-retardant behaviors of DOPO-containing monomers and copolymers were observed using thermogravimetric analysis and micro calorimetry tests. From thermogravimetric analysis (TGA), it was found out that the T5% for decomposition of the copolymer was lower than that of polystyrene (PS), but the residue at 700 °C was higher than that of PS. The results from micro calorimetry (MCC) tests indicated that the rate for the heat release of the copolymer combustion was lower than that for PS. The limiting oxygen index (LOI) for combustion of the copolymer rose with increasing levels of DOPOAA. These data indicate that copolymerization of the phosphorus-containing flame-retardant monomer, DOPOAA, into a PS segment can effectively improve the thermal stability and flame retardancy of the copolymer.


RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20391-20402
Author(s):  
Chen Cheng ◽  
Yanling Lu ◽  
Weining Ma ◽  
Shaojie Li ◽  
Jun Yan ◽  
...  

Red phosphorus was coated by a polydopamine/melamine composite shell structure, which constituted an intumescent flame retardant with superior flame retardance and smoke suppression performance for epoxy resin.


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