202304
聚(丙二醇)
average Mn ~425
别名:
PPG, 聚环氧丙烷
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线性分子式:
H[OCH(CH3)CH2]nOH
化学文摘社编号:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
Bp:
287.6 °C
Vapor pressure:
<0.01 mmHg ( 20 °C)
产品名称
聚(丙二醇), average Mn ~425
InChI key
DUFKCOQISQKSAV-UHFFFAOYSA-N
SMILES string
CC(O)CO
InChI
1S/C6H14O3/c1-5(8)4-9-6(2)3-7/h5-8H,3-4H2,1-2H3
vapor density
>1 (vs air)
vapor pressure
<0.01 mmHg ( 20 °C)
mol wt
average Mn ~425
contains
130-190 ppm proprietary phenolic antioxidant
refractive index
n20/D 1.447
viscosity
80 cSt(25 °C)(lit.)
bp
287.6 °C
hydroxyl value
263 mg KOH/g
solubility
water: miscible (completely)
density
1.004 g/mL at 25 °C
Quality Level
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Application
聚(丙二醇)可用：
- 增塑剂，因为它不结晶，具有较低的玻璃化转变温度，并具有生物相容性。例如，它可以用于聚乳酸的塑化。
- 制备从盐单胞菌细胞中回收 Ectoine 的水双相体系。
- 研究超分子聚合物（PPG）向常规聚合物（PPO）的虚拟转变。
存储类别
10 - Combustible liquids
wgk
WGK 1
flash_point_f
445.0 °F - closed cup
flash_point_c
229.44 °C - closed cup
ppe
Eyeshields, Gloves
Mohammed Taghi Zafarani-Moattar et al.
Biotechnology progress, 28(1), 146-156 (2011-09-29)
In this work, we proposed a novel aqueous biphasic system (ABS) composed of polypropylene glycol P400 (PPG P400) and hydrophilic ionic liquids (IL), 1-alkyl-3-methylimidazolium bromide (alkyl = ethyl or butyl), forming an upper polymer-rich phase and a lower IL-rich phase
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
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
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
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
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