Synthesis of amino trimethylene phosphonic acid melamine salt and its application in flame-retarded polypropylene

2018 ◽  
Vol 135 (22) ◽  
pp. 46274 ◽  
Author(s):  
Shang Gao ◽  
Gousheng Liu
Keyword(s):  
Phosphonic Acid ◽  
Melamine Salt ◽  
Flame Retarded

Flame retardation behaviors of UV-curable phosphorus-containing PU coating system

2013 ◽  
Vol 33 (8) ◽  
pp. 749-756
Author(s):  
Shih-Chieh Wang ◽  
Po-Cheng Chen ◽  
Chun-Ju Peng ◽  
Jing-Zhong Hwang ◽  
Kan-Nan Chen
Keyword(s):  
Phosphonic Acid ◽  
Composite Coatings ◽  
Mechanical Analysis ◽  
Coating System ◽  
Nano Silica ◽  
Uv Curable ◽  
Limiting Oxygen Index ◽  
Silica Composite ◽  
Flame Retarded ◽  
Flame Retardation

Abstract A UV-cured polyurethane (PU)/nano-silica composite with a flame-retarded coating system was obtained from the composition of nano-silica containing a UV-curable PU oligomer and a UV-reactive phosphonic acid [ethylene glycol methacrylate phosphate (EGMP)]. The UV-curable PU oligomer was prepared by an addition reaction of 2-hydroxyethyl methacrylate (2-HEMA) with an NCO-terminated PU pre-polymer; this was then mixed with a methanol dispersion of nano-silica. The UV-reactive phosphonic acid (EGMP) was prepared by a reaction of 2-HEMA with phosphorus pentoxide (P2O5). The curing reaction of the PU/nano-silica composite coating system was carried out by UV irradiation with the aid of a photoinitiator (2-hydroxy-2-methylpropiophenone). The thermal properties of these PU/nano-silica composite coatings were investigated by the measurements of dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA), respectively. A phosphorus (phosphonic acid) containing ingredient, EGMP in PU coating system that provides good adhesion to steel surface and flame retardation. Their physical properties (contact angle, hardness) and flame flammability [limiting oxygen index (LOI), UL-94 test] with various phosphorus contents (different dosages of EGMP) were also evaluated in this report.

SYNERGISTIC EFFECT OF Cu-ZSM-5 ZEOLITE ON FLAME RETARDED PP BY MELAMINE SALT OF DIPENTAERYTHRIOL PHOSPHATE

2009 ◽  
Vol 27 (02) ◽  
pp. 241 ◽  
Author(s):  
Jing Gu ◽  
Dao Li ◽  
Wei-wei Liao ◽  
Yuan Li ◽  
Xing-yi Wang
Keyword(s):  
Synergistic Effect ◽  
Melamine Salt ◽  
Flame Retarded

scholarly journals A Sustainable Improvement of ω-Bromoalkylphosphonates Synthesis to Access Novel KuQuinones

Organics ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 107-117
Author(s):  
Mattia Forchetta ◽  
Valeria Conte ◽  
Giulia Fiorani ◽  
Pierluca Galloni ◽  
Federica Sabuzi
Keyword(s):  
Metal Oxides ◽  
Phosphonic Acid ◽  
Organic Molecules ◽  
Building Blocks ◽  
Reaction Conditions ◽  
Phosphonic Acids ◽  
Sustainable Improvement ◽  
Phosphonate Esters ◽  
First Time ◽  
Complex Organic

Owing to the attractiveness of organic phosphonic acids and esters in the pharmacological field and in the functionalization of conductive metal-oxides, the research of effective synthetic protocols is pivotal. Among the others, ω-bromoalkylphosphonates are gaining particular attention because they are useful building blocks for the tailored functionalization of complex organic molecules. Hence, in this work, the optimization of Michaelis–Arbuzov reaction conditions for ω-bromoalkylphosphonates has been performed, to improve process sustainability while maintaining good yields. Synthesized ω-bromoalkylphosphonates have been successfully adopted for the synthesis of new KuQuinone phosphonate esters and, by hydrolysis, phosphonic acid KuQuinone derivatives have been obtained for the first time. Considering the high affinity with metal-oxides, KuQuinones bearing phosphonic acid terminal groups are promising candidates for biomedical and photo(electro)chemical applications.

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