435422
Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)
average Mn ~2,000
Synonym(s):
Nanopatterning, Pluronic® L-61, block-copolymers, PEG-PPG-PEG
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About This Item
CAS Number:
UNSPSC Code:
12352112
PubChem Substance ID:
NACRES:
NA.23
MDL number:
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
viscous liquid
mol wt
average Mn ~2,000
composition
PEG, 10 wt. %
refractive index
n20/D 1.4531
viscosity
325 cP(25 °C, Brookfield)(lit.)
transition temp
softening point −29 °C, cloud point 15-19 °C (10 wt. % aqueous solution)
density
1.006 g/mL at 25 °C
HLB
1.0 - 7.0.
Quality Level
Related Categories
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.
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
Storage Class
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Tsz Chung Lai et al.
Colloids and surfaces. B, Biointerfaces, 99, 27-37 (2011-10-18)
Polyplex particles formed with plasmid DNA (pDNA) and Pluronic P85-block-poly{N-[N-(2-aminoethyl)-2-aminoethyl]aspartamide} (P85-b-P[Asp(DET)]) demonstrated highly effective transfection ability compared to PEG-based block cationomer, PEG-b-P[Asp(DET)]. Ternary polyplexes comprising PEG-b-P[Asp(DET)], poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide)-b-P[Asp(DET)] (P(EPE)-b-P[Asp(DET)]) used as an analog of P85-b-P[Asp(DET)], and pDNA were
Laurien Buitinga et al.
Clinical and experimental rheumatology, 29(5), 783-789 (2011-10-04)
The Time Trade-Off (TTO) is an instrument used for valuing health-related quality of life. This study evaluated the test-retest reliability of a computer TTO in rheumatoid arthritis (RA), and compared the computer with the interview TTO regarding feasibility and agreement.
Houjian Gong et al.
Langmuir : the ACS journal of surfaces and colloids, 28(38), 13590-13600 (2012-09-08)
The block polyethers PEO-PPO-ph-PPO-PEO (BPE) and PPO-PEO-ph-PEO-PPO (BEP) are synthesized by anionic polymerization using bisphenol A as initiator. Compared with Pluronic P123, the aggregation behaviors of BPE and BEP at an air/water interface are investigated by the surface tension and
Mi Mi Wan et al.
Journal of colloid and interface science, 377(1), 497-503 (2012-04-18)
New concept on the promotion of immobilization and catalytic activity of enzyme on mesoporous silica through template micelles is proposed and realized in this paper. Proper P123 templates are controllable retained in the as-synthesized SBA-15, not only to anchor the
Xijun Zhang et al.
Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban, 31(6), 842-845 (2011-12-17)
This study examined the effect of P85 (a pluronic block copolymer) and microbubble (MB) ultrasound contrast agents under ultrasound irradiation on gene transfection and expression. The pEGFP plasmids that can encode enhanced green fluorescent protein (pEGFP) served as a report
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