2-Methylpentamethylenediamine

2-Methylpentamethylenediamine is an organic compound part of the amine family with the formula H2NCH2CH2CH2CH(CH3)CCH2NCH2. A colorless liquid, this diamine is obtained by the hydrogenation of 2-methylglutaronitrile.[1]

2-Methylpentamethylenediamine

2-Methylpentamethylenediamine line structure
Names
Preferred IUPAC name
2-Methylpentane-1,5-diamine
Other names
1,5-Diamino-2-methylpentane, 2-Methylpentanediamine
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.035.945
EC Number
  • 239-556-6
UNII
  • InChI=1S/C6H16N2/c1-6(5-8)3-2-4-7/h6H,2-5,7-8H2,1H3
    Key: JZUHIOJYCPIVLQ-UHFFFAOYSA-N
  • CC(CCCN)CN
Properties
C6H16N2
Molar mass 116.208 g·mol−1
Appearance colorless liquid
Boiling point 192 °C (378 °F; 465 K)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant, Corrosive, Acute Toxic
GHS labelling:
Danger
H302, H312, H314, H331, H332, H335
P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P311, P312, P321, P322, P330, P363, P403+P233, P405, P501
Flash point 83
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N (what is YN ?)
Infobox references

Uses

2-Methylpentamethylenediamine serves as a curing agent. It gives good adhesion for metals and resistance against corrosion and other chemicals. It provides toughness, low blush, uniform finish, high gloss, and improves UV stability. It reduces gel time and is compatible with epoxy resins. It is suitable for marine, industrial, and decorative coatings.[2]

2-Methylpentamethylenediamine can also be used as a chain extender for polyurethane applications. Its derivatives like aspartic esters, secondary amines, aldimines and ketoimines serve as curatives in systems of polyurea. In polyamides, 2-Methylpentamethylenediamine acts as a crystallinity disruptor. This makes polymers amorphous in structure and slows down crystallization. It lowers melting point, improves surface appearance, increases abrasion resistance, and dye uptake. It also reduces water absorption, gelling, melt and quench temperatures.[3]

In summary, its uses are:[4]

  • Corrosion inhibitor
  • Polyamide adhesive and ink resins.
  • Polyamide films, plastics, and fibers
  • Epoxy curing agents
  • Metalworking Fluids
  • Chain extenders
  • Water treatment chemicals
  • Isocyanates

Hazards

Even though 2-Methylpentamethylenediamine has many uses, it also has many hazards. It can cause burns, is corrosive to skin, harmful when swallowed, and it can cause pulmonary edema and acute pneumonitis when inhaled in high concentrations.[5]

References
  1. Eller, Karsten; Henkes, Erhard; Rossbacher, Roland; Höke, Hartmut (15 June 2000). "Amines, Aliphatic". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a02_001.
  2. "Dytek® A (2-Methylpentamethylenediamine) - INVISTA - datasheet". coatings.specialchem.com. Retrieved 2021-04-07.
  3. "Dytek A (2-Methylpentamethylenediamine) - Invista Specialty Chemicals". polymer-additives.specialchem.com. Retrieved 2021-04-07.
  4. "Dytek® A | 2-Methylpentamethylenediamine (MPMD)". Dytek. Retrieved 2021-04-07.
  5. "2-Methylpentamethylenediamine - Hazardous Agents | Haz-Map". haz-map.com. Retrieved 2021-04-07.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.