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Merck

373974

Sigma-Aldrich

Poly(2-ethyl-2-oxazoline)

average Mw ~500,000, PDI 3‑4

Sinónimos:

PEOX, POx, PetOx, poly 2-ethyloxazoline, polyethyloxazoline

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About This Item

Fórmula lineal:
[-N(COC2H5)CH2CH2-]n
Número de CAS:
Número MDL:
Código UNSPSC:
12162002
ID de la sustancia en PubChem:
NACRES:
NA.23

formulario

solid

Nivel de calidad

mol peso

average Mw ~500,000

viscosidad

60-80 cSt, 10 % in H2O

densidad

1.14 g/mL at 25 °C (lit.)

PDI

3‑4

InChI

1S/C5H9NO/c1-2-5-6-3-4-7-5/h2-4H2,1H3

Clave InChI

NYEZZYQZRQDLEH-UHFFFAOYSA-N

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Aplicación

This Poly(2-ethyl-2-oxazoline) polymer is amorphous and water soluble with good temperature stability. Jordan and coworkers showed biocompatibility, no accumulation in tissue, and rapid clearance from the bloodstream. End-group modified poly(2-ethyl-2-oxazoline)s have been conjugated to peptides, and were shown as versatile alternatives to poly(ethylene glycol) (PEG) for both protein and small drug conjugation.

Potential substitute for poly(vinyl alcohol) and poly(vinyl pyrrolidone). Adhesion promoter in coatings. Heat sealing and remoistenable hot-melt adhesive

Características y beneficios

Nonionic, water-soluble thermoplastic. Better heat stability than poly(vinyl alcohol). Good melt flow, shear stability and Newtonian characteristics. Water is a room temperature Theta solvent.

Forma física

N-propionyl substituted linear polyethylenimine

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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Yung-Chu Chen et al.
Journal of biomedical materials research. Part A, 100(5), 1279-1292 (2012-03-01)
The multifunctional nanoparticles constructed from triphenylamine-poly(lactide-co-glycolide)-poly(ethyleneglycol)-poly(lactide-co-glycolide) (TPA-PEP) and folate-poly(2-ethyl-2oxazoline)-poly(D,L-lactide) (folate-PEOz-PLA) were developed in this study. Iron oxide nanoparticles (IOP) and paclitaxel (PTX) were coencapsulated in the nanoparticles with diameter less than 200 nm. The drug-loaded nanoparticles emit fluorescence peak at
I C Kwon et al.
Nature, 354(6351), 291-293 (1991-11-28)
New controlled drug-delivery systems are being explored to overcome the disadvantages of conventional dosage forms. For example, stimulated drug-delivery has been used to overcome the tolerance problems that occur with a constant delivery rate, to mimic the physiological pattern of
Chau-Hui Wang et al.
Journal of controlled release : official journal of the Controlled Release Society, 108(1), 140-149 (2005-09-27)
Polymeric micelles based on poly(L-lactide)-b-poly(2-ethyl-2-oxazoline)-b-poly(L-lactide) (PLLA-PEOz-PLLA) ABA triblock copolymers were designed as intracellular drug carriers. The PLLA-PEOz-PLLA micelles adopt a "flower-like" arrangement with A-blocks at the core and a B-block on the shell under neutral condition. The deformation of the
Chau-Hui Wang et al.
Biomacromolecules, 4(6), 1487-1490 (2003-11-11)
A new series of cationic, thermo-sensitive, and biodegradable poly(L-lactide)-poly(2-ethyl-2-oxazoline)-poly(L-lactide) (PLLA-PEOz-PLLA) triblock copolymers were synthesized by ring-opening polymerization. With increasing molecular weight and crystallinity of hydrophobic PLLA blocks, the critical micellization concentrations (CMC) occurred at lower concentration. The PLLA-PEOz-PLLA aqueous solution
S R Winn et al.
Orthodontics & craniofacial research, 8(3), 183-190 (2005-07-19)
Bone repair strategies continue to be developed for alternatives to autografting, allogeneic implants of banked bone, and other bone substitutes. Efforts have included the delivery of potent growth and/or differentiation factors and the use of gene therapy. For bone regeneration

Artículos

The introduction of polymers into the biomedical field has opened new avenues in tissue engineering, implant design, biosensing, and drug delivery.

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

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