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Merck
CN

202355

Poly(propylene glycol)

average Mn ~4,000

Synonym(s):

PPG, Poly(propylene oxide)

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About This Item

Linear Formula:
H[OCH(CH3)CH2]nOH
CAS Number:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
Vapor pressure:
<0.01 mmHg ( 20 °C)
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vapor density

>1 (vs air)

Quality Segment

vapor pressure

<0.01 mmHg ( 20 °C)

description

functionality 1.7

mol wt

average Mn ~4,000

impurities

≤0.035% Water (Karl Fischer)

viscosity

1,300 cP(25 °C)(lit.)

hydroxyl value

28 mg KOH/g

solubility

H2O: <0.01 % (w/w) at 25 °C

density

1.004 g/mL at 25 °C

SMILES string

CC(O)CO

InChI

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

InChI key

DUFKCOQISQKSAV-UHFFFAOYSA-N

General description

Poly(propylene glycol) (PPG) is a hydrophobic polyether that is widely used in various biomedical areas such as preparation of biocompatible polyurethanes and lubricious coatings on absorbable sutures.

Application

Poly(propylene glycol) can be used:
  • As a precursor to synthesize biodegradable poly(ether-ester) networks via UV photopolymerization.
  • As a stabilizing agent in the preparation of metal nanoparticles such as gold nanoparticles.
  • As a starting material to prepare silane-terminatedpoly(urethane-urea)s (SPUR) polymers.


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Storage Class

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



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