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Sigma-Aldrich

Poly[(phenyl glycidyl ether)-co-formaldehyde]

average Mn ~345

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Synonym(s):
Phenol-formaldehyde polymer glycidyl ether, Phenol-formaldehyde polymer, oxiranylmethyl ether
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

form

liquid

specific activity

2.2 epoxide groups per molecule

mol wt

average Mn ~345

refractive index

n20/D 1.589

viscosity

11-17 poise(lit.)

density

1.227 g/mL at 25 °C (lit.)

SMILES string

[H]C([H])=O.C1OC1COc2ccccc2

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This Item
405493406732731811
refractive index

n20/D 1.589

refractive index

n20/D 1.573

refractive index

n20/D 1.464

refractive index

-

viscosity

11-17 poise(lit.)

viscosity

100-150 poise(25 °C)

viscosity

-

viscosity

-

density

1.227 g/mL at 25 °C (lit.)

density

1.16 g/mL at 25 °C

density

1.14 g/mL at 25 °C

density

-

specific activity

2.2 epoxide groups per molecule

specific activity

-

specific activity

-

specific activity

-

mol wt

average Mn ~345

mol wt

average Mn ~377

mol wt

average Mn ~380

mol wt

average Mn 2,000

General description

Poly [(phenyl glycidyl ether)-co-formaldehyde] (Re2O7) is a strong oxidant and a highly selective Lewis acid catalyst. The structure is constituted of strongly distorted ReO4 octahedra and nearly regular ReO4 tetrahedra which are connected through corners to form polymeric double layers in the ac plane.

Application

Re2O7 acts as a catalyst in the heteroacylative dimerization of THF.Adhesives, structural and electrical laminates and coatings and castings for high temperature service.

Features and Benefits

Good chemical resistance at high temperatures. Substitutes for Bisphenol A and phenolic epoxy resins.

Physical form

Oligomeric epoxide.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Crystal structure of rhenium (VII) oxide
Krebs B, et al.
Inorganic Chemistry, 8(3), 436-443 (1969)
T Suami et al.
Carbohydrate research, 53(2), 239-246 (1977-02-01)
The aminocyclitol antibiotic neamine has been modified chemically by removing one or two hydroxyl groups from the 2-deoxystreptamine moiety to give 5- and 6- deoxyneamines (5 and 10), as well as 5,6-dideoxyneamine (15). Their antimicrobial activities were determined against several

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