2-dimethylaminoethyl methacrylate appears as a clear colorless liquid. Less dense than water and insoluble in water. Vapors heavier than air and corrosive to eyes and mucous membranes. May polymerize exothermically if heated or contaminated. If polymerization takes place inside a closed container, the container may rupture violently. Produces toxic oxides of nitrogen during combustion. Toxic by skin absorption, ingestion and inhalation. Used to make plastics and in textiles.
颜色/状态:
Liquid
气味:
Amine-like
蒸汽密度:
5.4 (AIR= 1)
蒸汽压力:
0.72 mm Hg at 25 °C (est)
自燃温度:
255 °C
分解:
When heated to decomposition it emits toxic fumes of nitroxides.
粘度:
1.34 mPa s at 25 °C
汽化热:
48.8 kJ/mol
聚合:
METHYL METHACRYLATE, AND IN GENERAL THE METHACRYLIC ESTERS, POLYMERIZE MUCH LESS READILY THAN THE CORRESPONDING ORDINARY ACRYLATES. NONE THE LESS, THEY ARE STABILIZED BY ADDING HYDROQUINONE OR PYROGALLOL, PARTICULARLY IN THE PRESENCE OF METALLIC COPPER. /METHACRYLATES/
2-(Dimethylamino)ethyl methacrylate was rapidly hydrolyzed to methacrylic acid (CAS 79-41-4) and N,N,-dimethylaminoethanol (CAS 108-01-0) when incubated with simulated saliva or simulated intestinal fluid in vitro, but not with simulated gastric fluid.. 90% degradation was observed in simulated saliva after 4 hours at 37 °C, 86% degradation after incubation with simulated intestinal fluid for 4 hours at 37 °C. Degradation was below 8% after incubation with simulated gastric fluid for 4 hours at 37 °C.
IDENTIFICATION AND USE: N,N-dimethylaminoethyl methacrylate is a colorless liquid with amine-like odor.It is used in binders for coatings, textile chemicals, dispersing agents for nonaqueous systems, antistatic agents, stabilizers for chlorinated polymers, ion exchange resins, emulsifying agents, cationic precipitating agents. It is also used in dental materials, antithrombogenic prosthetics, experimental use in slow-release capsules, in cosmetics. More recently, It is also used in nanoparticles for gene delivery and drug delivery. HUMAN EXPOSURE AND TOXICITY: pH-Sensitive poly(N,N-dimethylaminoethyl methacrylate (DMAEMA)/2-hydroxyethyl methacrylate (HEMA)) nanoparticles were not cytotoxic. ANIMAL STUDIES: Dimethylaminoethyl methacrylate decreased the heart rate and force of contraction of isolated, perfused rabbit heart when added to perfusing liquid. Dimethylaminoethyl methacrylate was strongly irritating to skin of guinea pigs and conjunctiva of rabbits. When administered by gastric gavage to rabbits, dimethylaminoethyl methacrylate initially suppressed brain electrical activity and then induced clonic-tonic spasms. In dogs it produced hypertensive effect following iv administration. The toxicity of 6 acrylates and 6 methacrylates, including N,N-dimethylaminoethyl methacrylate, was determined in rats and fish. All the esters were less toxic than acrylamide and acrylonitrile.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
吸入症状
咳嗽。喉咙痛。
Cough. Sore throat.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
皮肤症状
皮肤烧伤。疼痛。
Skin burns. Pain.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
眼睛症状
红斑。疼痛。严重深度烧伤。
Redness. Pain. Severe deep burns.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
摄入症状
腹痛。腹泻。恶心。呕吐。灼热感。休克或昏厥。
Abdominal pain. Diarrhoea. Nausea. Vomiting. Burning sensation. Shock or collapse.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
1.周国泰,化学危险品安全技术全书,化学工业出版社,1997 2.国家环保局有毒化学品管理办公室、北京化工研究院合编,化学品毒性法规环境数据手册,中国环境科学出版社.1992 3.Canadian Centre for Occupational Health and Safety,CHEMINFO Database.1998 4.Canadian Centre for Occupational Health and Safety, RTECS Database, 1989