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Sigma-Aldrich

Poly(ethyleneimine) solution

average Mw 1800, 50 wt. % in H2O

Sinônimo(s):

Ethyleneimine polymer solution, PEI

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About This Item

Número CAS:
9002-98-6
Número MDL:
MFCD00084427
Código UNSPSC:
12162002
ID de substância PubChem:
24865590
NACRES:
NA.23

forma

liquid

Nível de qualidade

200

peso molecular

average Mw 1800

concentração

50 wt. % in H2O

índice de refração

n20/D 1.453

densidade

1.08 g/mL at 25 °C

InChI

1S/C2H8N2.C2H5N/c3-1-2-4;1-2-3-1/h1-4H2;3H,1-2H2

chave InChI

SFLOAOINZSFFAE-UHFFFAOYSA-N

Categorias relacionadas

Descrição geral

Poly(ethyleneimine) (PEI) is a positivelycharged polymeric amine with a linear or branched structure. It has chelating properties with a variety of metal ions. It is highlysoluble in water and behaves as an effective base in aqueous solutions. Due toits superior physicochemical properties, it is widely used in the field ofbiomedicine, water purification, bioimaging, gene delivery, and self-healingmaterials.

Aplicação

Poly(ethyleneimine) solution can be used for surface modification of cation exchange resins. The modified resins exhibited improved selectivity towards transition elements. Due to repulsion effects within the cationic layer, the selectivity for alkaline ions decreases. As a result, this resin can be applied to purify industrial waste by column sorption.

It can be used as a precursor to prepare polyelectrolyte multilayers for the promotion of cell adhesion and growth on implant surfaces.

PEI can act as a reactive template and stabilizing agent in the preparation of metal nanoparticles in aqueous media. The amino groups in the PEI can coordinate with metal ions dissolved in water and reduce their aggregation capability. This results in the formation of smaller nanoparticles.

Características e benefícios

  • It has repetitive structural units and aflexible polymer chain.
  • Due to the accessibility of a huge number ofamino groups on PEI, it can be modified or functionalized for specific featuressuch as sensitivity, specificity, and biocompatibility.
  • Highwater solubility.

forma física

Branched polymer

Pictogramas

Exclamation markEnvironment
GHS07,GHS09

Palavra indicadora

Warning

Frases de perigo

H317,H411

Classificações de perigo

Aquatic Chronic 2 - Skin Sens. 1

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 2

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Artigos

Functionalized PEI and Its Role in Gene Therapy
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.

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