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Merck

435465

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

average Mn ~5,800

동의어(들):

Nanopatterning, Pluronic® P-123, block-copolymers, PEG-PPG-PEG

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제품정보 (DICE 배송 시 비용 별도)

CAS 번호:
UNSPSC Code:
12352104
PubChem Substance ID:
NACRES:
NA.23
MDL number:
기술 서비스
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도움 문의

vapor density

>1 (vs air)

Quality Level

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

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

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General description

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.

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. Also, employed as sacrificial templates to prepare ZnS nanospheres, nanoporous silica.

Features and Benefits

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

Physical form

Terminal primary dihydroxy-functional oligomer.

Legal Information

Pluronic is a registered trademark of BASF

저장 등급

11 - Combustible Solids

wgk

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)


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이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

Facile synthesis of hollow ZnS nanospheres in block copolymer solutions
Ma Y, et al.
Langmuir, 19(9), 4040-4042 (2003)
Sol-Gel Derived Fe-Rich Matrix Composites Having Precipitated WC.
Alvarez EA, et al.
Advanced Engineering Materials (2014)
Hydrogen Bonding and Transfer in the Excited State, 2 (2011)
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)
Functionalized nanoporous silicas for the immobilization of penicillin acylase
Chong M, et al.
Applied Surface Science, 237(1), 398-404 (2004)

문서

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.

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