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482595

Sigma-Aldrich

Poly(ethyleneimine) solution

average Mn ~1,200, average Mw ~1300 by LS, 50 wt. % in H2O

Synonym(s):

Ethyleneimine polymer solution, PEI

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About This Item

CAS Number:
9002-98-6
MDL number:
MFCD00039669
UNSPSC Code:
12162002
PubChem Substance ID:
24871833
NACRES:
NA.23
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mol wt

average Mn ~1,200
average Mw ~1300 by LS

Quality Level

200

concentration

50 wt. % in H2O

refractive index

n20/D 1.454

viscosity

200-500 cP(25 °C)(lit.)

density

1.08 g/mL at 25 °C

SMILES string

N1CC1

InChI

1S/C2H5N/c1-2-3-1/h3H,1-2H2

InChI key

NOWKCMXCCJGMRR-UHFFFAOYSA-N

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General description

Poly(ethyleneimine) (PEI) solution is an amine based chelating ligand that can be prepared by the polymerization of arizidine. It can be impregnated to form an anion exchange membrane for chromatography applications.[1][2]

Application

PEI can be used as a complexing agent in the fabrication of composite membranes, which can be used in filtration of metals from the aqueous solution.[2][3][4][5][6]

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H317,H411

Hazard Classifications

Aquatic Chronic 2 - Skin Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP6830
MKCH4114
MKBZ1131V
MKBS7391V
MKBL0082

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Micro-nano structure poly (ether sulfones)/poly (ethyleneimine) nanofibrous affinity membranes for adsorption of anionic dyes and heavy metal ions in aqueous solution
Min M, et al.
Chemical Engineering Journal, 197(4), 88-100 (2012)
Mercury removal from synthetic solutions using poly (2-hydroxyethylmethacrylate) gel beads modified with poly (ethyleneimine)
Denizli A, et al.
Reactive and Functional Polymers, 55(2), 121-130 (2003)
Ion-exchange chromatography of nucleotides on poly-(ethyleneimine)-cellulose thin layers
Randerath K and Randerath E
Journal of Chromatography A, 16(2), 111-125 (1964)
Poly (ethyleneimine) as complexing agent for separation of metal ions using membrane filtration
Bayer , et al.
Polymer Bull., 13(4), 307-311 (1985)
Sorption and filtration of Hg (II) ions from aqueous solutions with a membrane containing poly (ethyleneimine) as a complexing polymer
Bessbousse H, et al.
Journal of Membrane Science , 325(2), 997-1006 (2008)
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Articles

Functionalized PEI and Its Role in Gene Therapy

Gene therapy has become one of the most discussed techniques in biomedical research in recent years.

Nanoparticle-Based Drug and Gene Delivery for Tumor Targeting

Professor Yoshiki Katayama (Kyushu University, Japan) discusses recent advances in drug delivery systems and strategies that exploit the EPR effect, with a special focus on stimuli-responsive systems based on novel materials.

Polyelectrolyte Multilayer Films and Membrane Functionalization

We present an article that discusses two applications in particular; first, using these layers as polyelectrolyte membranes to control permeability.

Microfluidics for Nanoencapsulation of Nucleic Acids

Microfluidic assembly improves polyamine nanoencapsulation of nucleic acids, overcoming challenges like polydispersity and poor reproducibility.

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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. is it linear or branched?

    1 answer

    1. This polyethyleneimine has a branched polymer structure.

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