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Polyethylenimine “Max”, (Mw 4,000*) - High Potency Linear PEI (Equivalent to Mw ~2,500 in Free Base Form) Polyethylenimi

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商品货号:24885-2
商品品牌:Polysciences
商品规格:2g
上架时间:2012-02-14
本店售价:¥2664元
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Polyethylenimine “Max”, (Mw 4,000*) - High Potency Linear PEI (Equivalent to Mw ~2,500 in Free Base Form) Polyethylenimine

 

Catalog No: 24885-2                        Packaging Size: 2g

 

CAS Number: 9002-98-6
 

A nearly fully hydrolyzed linear polyethylenimine with longer contiguous ethyleneimine segments. Polyethylenimine "Max" is built from the same polymer backbone (Mw ~2,500) as the popular linear polyethylenimine. Despite the fact N-deacylation reactions are notoriously difficult, our new linear polyethylenimine material is believed to contain more than 11% additional free (protonatable) nitrogens than our original linear polyethylenimine material (Cat. # 23966).

Our material is supplied as a hydrochloride salt for ease of handling but may be converted into the free amine form by neutralization with base.

Properties

Appearance: White to off-white free flowing solid

*Molecular Weight (Mw): Mw in free base form. Nominal 4,000 Mw in hydrochloride salt form. (Comparable to Cat. #24313 - Polyethylenimine, Linear, Mw 2,500 which is not in the hydrochloride salt form)

Chemical Structure: Hydrochloride salt of linear polyethylenimine

Solubility: Highly water soluble in hydrochloride salt form

Insoluble in: Common organic solvents (ethanol, acetone, tetrahydrofuran)

Soluble in: Cold and room temperature water

For the use of PEI in an antimicrobial coating, see Klibanov et. al. Proceedings of the National Academy of Sciences, vol. 102, no. 16, 5679-5684 (2005). Published on-line prior to printing on 4/11/05.

FTIR Spectrum of  Polyethylenimine "Max" 4,000
(Equivalent to MW ~2,500 in Free Base Form)

 

Analysis of Polyethylenimine "Max" 4,000
(Equivalent to MW ~2,500 in Free Base Form)

 

  %C %H %N %Cl Total
Theoretical (based on 5.4% water content) 28.6 7.8 16.7 42.2 95.30
Found by elemental analysis 28.99 7.47 16.52 42.06

95.042

Molecular Weight: ~2,500
Appearance: White to off-white free flowing solid
TSCA
Hazards: Caution!Irritant
Handling: Glove, chemical goggles & fume hood
Storage: Store at room temperature
Polyethylenimine “Max”, (Mw 4,000*) - High Potency Linear PEI (Equivalent to Mw ~2,500 in Free Base Form) Polyethylenimi
Polyethylenimine “Max”, (Mw 4,000*) - High Potency Linear PEI (Equivalent to Mw ~2,500 in Free Base Form) Polyethylenimi

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