POLY(HEXAMETHYLENE DIISOCYANATE)

Base Information

• Chemical Name: POLY(HEXAMETHYLENE DIISOCYANATE)
• CAS No.: 28182-81-2
• Molecular Formula: (C₈H₁₂N₂O₂)_x
• Molecular Weight: 168.2
• Mol file: 28182-81-2.mol

Synonyms:POLY(HEXAMETHYLENE DIISOCYANATE);1,6-diisocyanatohexanehomopolymer;1,6-diisocyanato-hexanhomopolymer;coronateeh;hdi-basedisocyanurates;Hexamethylenediisocyanate,homopolymer;hexamethylenediisocyanatebasedisocyanurates;hexamethylenediisocyanatepolymer

Chemical Property of POLY(HEXAMETHYLENE DIISOCYANATE)

Chemical Property:

• Vapor Pressure: 0.002-0.003Pa at 20-25℃
• Refractive Index: n20/D 1.506
• Flash Point: >230 °F
• PSA: 58.86000
• Density: 1.169 g/mL at 25 °C
• LogP: 1.21840

Purity/Quality:

98%,99%, ^*data from raw suppliers

Poly(hexamethylene diisocyanate) viscosity 1,300-2,200 cP (25 °C)(lit.) ^*data from reagent suppliers

Safty Information:

• Hazard Codes: Xn,Xi
• Statements: 43-42/43-20-36
• Safety Statements: 36/37-45-23-37-24-26

MSDS Files:

SDS file from LookChem

Useful:

• Uses: PolyHDI can be used as a compatibilizer to increase the complex viscosity of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/poly(lactic acid) biopolymer based blends. It can be used as a hardener that can be mixed with polyol resins to form polyurethane coatings with a wide range of applications like self-cleaning.

Technology Process of POLY(HEXAMETHYLENE DIISOCYANATE)

There total 54 articles about POLY(HEXAMETHYLENE DIISOCYANATE) which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 99.8%

N,N′-hexanediyl bis-carbamic acid diphenyl ester (4223-31-8) → Hexamethylene diisocyanate (822-06-0,28182-81-2,28574-90-5,88357-62-4)

Guidance literature:

at 150 ℃; Pyrolysis;

Reference yield: 99.6%

1,6-Hexanediamine (124-09-4) + phenyl isocyanate (103-71-9) → Hexamethylene diisocyanate (822-06-0,28182-81-2,28574-90-5,88357-62-4)

Guidance literature:

With phosgene; In chlorobenzene; at 10 - 130 ℃; for 4 - 5h; Solvent;

Reference yield: 98.0%

N,N’-hexanediyl-di((4-tert-octylphenyl)carbamate) → Hexamethylene diisocyanate (822-06-0,28182-81-2,28574-90-5,88357-62-4)

Guidance literature:

at 280 ℃; under 7.50075 Torr;

upstream raw materials:

1,6-Hexanediamine

phosgene

diethyl ether

carbon dioxide

Downstream raw materials:

1,6-bis-{2-[4-(2-hydroxy-ethoxy)-phenoxy]-ethoxycarbonylamino}-hexane

N,N'-hexanediyl-di-peroxycarbamic acid bis-(1-methyl-1-phenyl-ethyl ester)

N',N'''-diphenyl-N,N''-hexanediyl-di-urea

1,1'-diphenyl-4,4'-hexanediyl-di semicarbazide

Refernces

• 1、 Sigurdsson, Snorri Th.,Seeger, Bodo,Kutzke, Ursula,Eckstein, Fritz. "A mild and simple method for the preparation of isocyanates from aliphatic amines using trichloromethyl chloroformate. synthesis of an isocyanate containing an activated disulfide". . p. 3883 - 3884. Retrieved 1996.
• 2、 -. "Method for preparing isocyanate with low hydrolytic chlorine content by gas phase method". Paragraph 0033-0036; 0041-0046. . Retrieved 2021/05/22.
• 3、 -. "METHOD OF PREPARING DIISOCYANATE COMPOSITION". Paragraph 0248-0249; 0283-0285. . Retrieved 2021/06/11.