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202304

Sigma-Aldrich

Poly(propylène glycol)

average Mn ~425

Synonyme(s) :

PPG, Poly(oxyde de propylène)

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About This Item

Formule linéaire :
H[OCH(CH3)CH2]nOH
Numéro CAS:
25322-69-4
Numéro MDL:
MFCD00084446
Code UNSPSC :
12162002
ID de substance PubChem :
24852053
Nomenclature NACRES :
NA.23
Pression de vapeur:
<0.01 mmHg ( 20 °C)
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Densité de vapeur

>1 (vs air)

Niveau de qualité

200

Pression de vapeur

<0.01 mmHg ( 20 °C)

Poids mol.

average Mn ~425

Contient

130-190 ppm proprietary phenolic antioxidant

Indice de réfraction

n20/D 1.447

Viscosité

80 cSt(25 °C)(lit.)

Indice d'hydroxyle

263 mg KOH/g

Solubilité

water: miscible (completely)

Densité

1.004 g/mL at 25 °C

Chaîne SMILES 

CC(O)CO

InChI

1S/C6H14O3/c1-5(8)4-9-6(2)3-7/h5-8H,3-4H2,1-2H3

Clé InChI

DUFKCOQISQKSAV-UHFFFAOYSA-N

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Application

Le poly(propylène glycol) peut être utilisé :
  • comme plastifiant car il ne cristallise pas, possède une faible température de transition vitreuse et est biocompatible. Il peut par exemple servir à plastifier l'acide polylactique.
  • pour préparer un système biphasique aqueux permettant d'extraire l'ectoïne à partir de cellules d'Halomonas salina.
  • pour étudier la transition virtuelle d'un polymère supramoléculaire (PPG) vers un polymère conventionnel (PPO).

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

445.0 °F - closed cup

Point d'éclair (°C)

229.44 °C - closed cup

Équipement de protection individuelle

Eyeshields, Gloves

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
MKCV5089
MKCG2618
MKBZ3153V
01817PUV
SHBF4146V

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R De Lisi et al.
Physical chemistry chemical physics : PCCP, 13(27), 12571-12577 (2011-06-15)
The study highlighted the main forces driving the formation of hydroxypropyl-cyclodextrins (HP-CDs) + poly(propylene) glycol 725 g mol(-1) inclusion complexes. The temperature parameter was chosen as the variable to modulate the hydrophobicity of the polymer, and consequently ITC experiments as
Izzuddin Zaman et al.
Nanoscale, 4(15), 4578-4586 (2012-06-19)
In spite of extensive studies conducted on carbon nanotubes and silicate layers for their polymer-based nanocomposites, the rise of graphene now provides a more promising candidate due to its exceptionally high mechanical performance and electrical and thermal conductivities. The present
L Hong et al.
Physical review. E, Statistical, nonlinear, and soft matter physics, 83(6 Pt 1), 061508-061508 (2011-07-30)
There are various arguments and models connecting the characteristic length associated with the boson peak vibrations ξ to the length scale of dynamical heterogeneity L(het). ξ is usually defined as the ratio of the transverse sound velocity to the boson
Flávia Chiva Carvalho et al.
Journal of biomedical nanotechnology, 8(2), 280-289 (2012-04-21)
In the last few decades, nanotechnology has led to an advance in the development of topical drug delivery. Nanostructured drug delivery systems enable the compartmentalization of drugs in restricted environments, modifying the release profile and maintaining the required drug concentration
F Palazzi et al.
International endodontic journal, 45(2), 129-135 (2011-09-13)
To investigate the surface tension characteristics of 5.25% sodium hypochlorite and three recently introduced sodium hypochlorite solutions, which had been modified to reduce their surface tension: Chlor-Xtra, Hypoclean A and Hypoclean B. Freshly produced MilliQ water was used as a
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Questions

1–2 of 2 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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