435465
聚（乙二醇）- 嵌段 - 聚（丙二醇）- 嵌段 - 聚（乙二醇）
average Mn ~5,800
别名:
Pluronic® P-123, PEG-PPG-PEG
产品名称
聚（乙二醇）- 嵌段 - 聚（丙二醇）- 嵌段 - 聚（乙二醇）, average Mn ~5,800
SMILES string
O2C(C2)C.O1CC1
InChI
1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
InChI key
RVGRUAULSDPKGF-UHFFFAOYSA-N
vapor density
>1 (vs air)
vapor pressure
<0.3 mmHg ( 20 °C)
form
solid
feed ratio
20:70:20 (EO:PO:EO)
mol wt
average Mn ~5,800
composition
PEG, 30 wt. %
refractive index
n20/D 1.465
surface tension
34 dyn/cm, 25 °C, 0.1 wt. % in H2O
viscosity
350 cP(60 °C, Brookfield)(lit.)
transition temp
Tm (DSC) 39 °C (at peak)
cloud point 90 °C (1 wt. % aqueous solution)
density
1.018 g/mL at 25 °C
HLB
7 - 9
Quality Level
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Application
Features and Benefits
General description
Physical form
Legal Information
存储类别
11 - Combustible Solids
wgk
WGK 1
ppe
Eyeshields, Gloves, type N95 (US)
Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
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.
What is the average molecular weight of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?
While we do not test the product to determine the molecular weight, our supplier reports the average molecular weight to be 5750.
What is the pour point of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?
Our supplier reports the pour point of product 435465 to be 31 °C.
I found an abbreviation of "HLB" on the webpage for Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?
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.
What is the water content of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol),?
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%.
What is the physical form of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) supposed to be?
The specification sheet describes Product No. 435465 as a semi-solid. It looks like a paste.
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
商品
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.
Mesoporous materials self-assemble from sol-gel precursors and amphiphiles, forming versatile structures for various applications.
Sigma-Aldrich®的科学家通过1H NMR端基分析对Mn值低于3,000的聚合物进行常规测定数均分子量（Mn）。
Discover hydrogels, biocompatible materials for drug delivery, tissue engineering, wound care, and 3D bioprinting in innovative biomedical applications
我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.
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