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CAS RN: 19481-79-9 | 产品编码: I0954
2-Iodo-2-methylpropionitrile
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This product is easily decomposed by light.
Please minimize light exposure and use in a darkened place.
技术规格
| Appearance | Light yellow to Brown clear liquid |
| Purity(GC) | min. 96.0 % |
物性（参考值）
| 沸点 | 62 °C/15 mmHg |
| 闪点 | 69 °C |
| 折射率 | 1.52 |
GHS
| 象形图 |
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| 信号词 | Danger |
| 危险性说明 | H301 + H311 + H331 : Toxic if swallowed, in contact with skin or if inhaled. H315 : Causes skin irritation. H319 : Causes serious eye irritation. H341 : Suspected of causing genetic defects. H227 : Combustible liquid. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P270 : Do not eat, drink or smoke when using this product. P202 : Do not handle until all safety precautions have been read and understood. P261 : Avoid breathing mist or vapors. P210 : Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P201 : Obtain special instructions before use. P271 : Use only outdoors or in a well-ventilated area. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P308 + P313 : IF exposed or concerned: Get medical advice/ attention. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P361 + P364 : Take off immediately all contaminated clothing and wash it before reuse. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P301 + P310 + P330 : IF SWALLOWED: Immediately call a POISON CENTER/doctor. Rinse mouth. P302 + P352 + P312 : IF ON SKIN: Wash with plenty of water.Call a POISON CENTER/doctor if you feel unwell. P304 + P340 + P311 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor. P403 + P233 : Store in a well-ventilated place. Keep container tightly closed. P403 : Store in a well-ventilated place. P405 : Store locked up. |
相关法规
运输信息
| UN编号 | UN3276 |
| 类别 | 6.1 |
| 包装类别 | III |
| HS编码* | 2926.90-000 |
应用
A Practical Living Radical Polymerization with Sodium Iodide as a Catalyst
Typical Procedure (a bulk polymerization):
A mixture of methyl methacrylate (801 g, 8 mol), 2-iodo-2-methylpropionitrile (15.6 g, 80 mmol), sodium iodide (6 g, 40 mmol), and 18-crown-6-ether (10.6 g, 40 mmol) is heated in a flask at 70 °C for 4 h under an argon atmosphere with stirring. An aliquot (0.1 mL) of the solution is taken out by a syringe, cooled to room temperature, diluted by THF or DMF to a known concentration, and analyzed by gel permeation chromatography (GPC), yielding the polymer with Mn = 8200 and Mw/Mn = 1.16 (monomer conversion = 83%).
A mixture of methyl methacrylate (801 g, 8 mol), 2-iodo-2-methylpropionitrile (15.6 g, 80 mmol), sodium iodide (6 g, 40 mmol), and 18-crown-6-ether (10.6 g, 40 mmol) is heated in a flask at 70 °C for 4 h under an argon atmosphere with stirring. An aliquot (0.1 mL) of the solution is taken out by a syringe, cooled to room temperature, diluted by THF or DMF to a known concentration, and analyzed by gel permeation chromatography (GPC), yielding the polymer with Mn = 8200 and Mw/Mn = 1.16 (monomer conversion = 83%).
References
应用
Alkyl Iodide Initiators for Organocatalyzed Living Radical Polymerization
General Scheme of Organocatalyzed Living Radical Polymerization1-5)
Goto et al. have reported that alkyl iodides are efficient initiators for organocatalyzed living radical polymerization which is a new family of living radical polymerization. Organic amines, organic salts and sodium iodide are used as catalysts. 1-5) Low polydispersity and metal free polymers can be obtained by using this method.
Ranges of Effective Alkyl Iodides in the Polymerizations of Methyl Methacrylate (MMA) and Butyl Acrylate (BA)1)
These alkyl iodides are effective initiators in methyl methacrylate (MMA) [M0087] and butyl acrylate (BA) [A0142] polymerizations using tributylmethylphosphonium iodide (BMPI) [M1455] or tetrabutylammonium iodide (BNI) [T0057] as a catalyst. Low-polydispersity polymers are obtainable.1)
References
- 1) a) Systematic Study on Alkyl Iodide Initiators in Living Radical Polymerization with Organic Catalysts
- b) A. Goto, T. Fukuda, Y. Tsujii, US 7399814, 2008.
- c) A. Goto, PCT Int. Appl. WO 2015122404, 2015.
- 2) Reversible Generation of a Carbon-Centered Radical from Alkyl Iodide Using Organic Salts and Their Application as Organic Catalysts in Living Radical Polymerization
- 3) Photocontrolled Organocatalyzed Living Radical Polymerization Feasible over a Wide Range of Wavelengths
- 4) Living Radical Polymerization with Alkali and Alkaline Earth Metal Iodides as Catalysts
- 5) The other related patents
- JP Patent No. 5850599, 5697026, 5881292, 5645165 and 5610402. JP Patent Appl. No. 2013-529906.
PubMed Literature
技术文章
[研究论文] 一种实用的碘化钠催化的活性自由基聚合[TCIMAIL No.185] Alkyl Iodide Initiators for Organocatalyzed Living Radical Polymerization
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