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435465

Sigma-Aldrich

Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)

average Mn ~5,800

Synonyme(s) :

Pluronic® P-123, PEG-PPG-PEG

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About This Item

Numéro CAS:
9003-11-6
Numéro MDL:
MFCD00082049
Code UNSPSC :
12352104
ID de substance PubChem :
24867236
Nomenclature NACRES :
NA.23
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Densité de vapeur

>1 (vs air)

Pression de vapeur

<0.3 mmHg ( 20 °C)

Forme

solid

Ratio alimentaire

20:70:20 (EO:PO:EO)

Poids mol.

average Mn ~5,800

Composition

PEG, 30 wt. %

Indice de réfraction

n20/D 1.465

Tension de surface

34 dyn/cm, 25 °C, 0.1 wt. % in H2O

Viscosité

350 cP(60 °C, Brookfield)(lit.)

Température de transition

Tm (DSC) 39 °C (at peak)
cloud point 90 °C (1 wt. % aqueous solution)

Densité

1.018 g/mL at 25 °C

HLB

7 - 9

Chaîne SMILES 

O2C(C2)C.O1CC1

InChI

1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2

Clé InChI

RVGRUAULSDPKGF-UHFFFAOYSA-N

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Description générale

PEG-PPG-PEG (Pluronic P123) symmetric triblock copolymer constitutes of poly(ethylene oxide)(PEO) and poly (propylene oxide) (PPO). The unique characteristic of PPO block exhibiting hydrophobicity at temperatures above 288K and solubility in water at temperatures below 288K lead to formation of micelle consisting of PEO-PPO-PEO triblock copolymers. Some studies report that the hydrophobic core contains PPO block and a hydrophilic corona is comprised of PEO block. In 30wt% aqueous solution Pluronic® P123 forms a cubic gel phase.[1]

Application

Hard and soft surface cleaners, defoamers in coatings and water treatment. Lubricant in metal working, anti-foaming aid and extender for linear and cross-linked polyesters and polyurethanes.
PEG-PPG-PEG is used in the preparation and coating of Fe-W-C(O) nanoparticles by sol gel technique.[2][3] Also, employed as sacrificial templates to prepare ZnS nanospheres,[4] nanoporous silica.[5]

Caractéristiques et avantages

Surface active material whose properties are dependent on the hydrophilic (EO)/hydrophobic (PO) ratio. High EO content gives better o/w stabilizers.

Forme physique

Terminal primary dihydroxy-functional oligomer.

Informations légales

Pluronic is a registered trademark of BASF

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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Certificats d'analyse (COA)

Lot/Batch Number
MKCW2161
MKCT1415
MKCV8698
MKCM2074
MKCM9587

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Formation of Nanocrystalline Phases in Sol-gel Masses in the Fe-WC (O) System and Densification up to 1100? C.
Oliver CJR, et al.
Procedia Materials Science, 1, 95-103 (2012)
Hydrogen Bonding and Transfer in the Excited State, 2 (2011)
Sol-Gel Derived Fe-Rich Matrix Composites Having Precipitated WC.
Alvarez EA, et al.
Advanced Engineering Materials (2014)
Hong-Lin Cheng et al.
Lab on a chip, 18(19), 2917-2925 (2018-08-18)
According to World Health Organization reports, cardiovascular diseases (CVDs) are amongst the major causes of death globally and are responsible for over 18 million deaths every year. Traditional detection methods for CVDs include cardiac computerized tomography scans, electrocardiography, and myocardial
Functionalized nanoporous silicas for the immobilization of penicillin acylase
Chong M, et al.
Applied Surface Science, 237(1), 398-404 (2004)
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Articles

Polymer Analysis in Materials Science

Scientists at Sigma-Aldrich® routinely determine number-average molecular weight (Mn) by 1H NMR end-group analysis for polymers having Mn values under 3,000.

Polymer Analysis in Materials Science

Scientists at Sigma-Aldrich® routinely determine number-average molecular weight (Mn) by 1H NMR end-group analysis for polymers having Mn values under 3,000.

Polymer Analysis in Materials Science

Scientists at Sigma-Aldrich® routinely determine number-average molecular weight (Mn) by 1H NMR end-group analysis for polymers having Mn values under 3,000.

Polymer Analysis in Materials Science

Scientists at Sigma-Aldrich® routinely determine number-average molecular weight (Mn) by 1H NMR end-group analysis for polymers having Mn values under 3,000.

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Questions

1–8 of 8 Questions  

  1. 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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  2. 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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  3. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  4. What is the average molecular weight of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?

    1 answer

    1. While we do not test the product to determine the molecular weight, our supplier reports the average molecular weight to be 5750.

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  5. What is the water content of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol),?

    1 answer

    1. While we do not test the product to determine the water content, our supplier reports the maximum water content allowed in Prouct No. 435465 is 0.4%.

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  6. What is the physical form of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) supposed to be?

    1 answer

    1. The specification sheet describes Product No. 435465 as a semi-solid. It looks like a paste.

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  7. What is the pour point of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?

    1 answer

    1. Our supplier reports the pour point of product 435465 to be 31 °C.

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  8. I found an abbreviation of "HLB" on the webpage for Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?

    1 answer

    1. HLB is an empirical expression for the relationship of the hydrophilic ("water-loving") and hydrophobic ("water-hating") groups of a surfactant. The table below lists HLB values along with typical performance properties. The higher the HLB value, the more water-soluble the surfactant.

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