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124893

Sigma-Aldrich

Camphorquinone

97%

Synonym(s):

(±)-Camphorquinone, 2,3-Bornanedione

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About This Item

Empirical Formula (Hill Notation):
C10H14O2
CAS Number:
Molecular Weight:
166.22
Beilstein/REAXYS Number:
1909463
EC Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

97%

form

solid

mp

197-203 °C (lit.)

SMILES string

[H][C@@]12CC[C@@](C)(C(=O)C1=O)C2(C)C

InChI

1S/C10H14O2/c1-9(2)6-4-5-10(9,3)8(12)7(6)11/h6H,4-5H2,1-3H3/t6-,10+/m1/s1

InChI key

VNQXSTWCDUXYEZ-LDWIPMOCSA-N

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General description

Camphorquinone (CQ) absorbs UV radiation in the region of 200-300nm due to the Π−Π* transition and visible light (400-500nm) due to the n, Π* transition of the α-dicarbonyl chromophore.

Application

CQ-amines are used as a photo initiators for free radical polymerization. CQ was used as an initiator in the preparation of silver nanoparticle/silica/ polymer nanocomposites. Photopolymerization kinetics of dimethacrylates were studied using the CQ/amine initiator system.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Camphorquinone-amines photoinitating systems for the initiation of free radical polymerization.
Jakubiak J, et al.
Polymer, 44(18), 5219-5226 (2003)
Yin-Chu Chen et al.
Dental materials : official publication of the Academy of Dental Materials, 23(6), 655-664 (2006-07-25)
The primary absorber in dental resins is the photoinitiator, which starts the photo polymerization process. We studied the quantum yield of conversion of camphorquinone (CQ), a blue light photoinitiator, in dental resin composites using a LED lamp (3M FreeLight) and
The role of oxygen in camphorquinone initiated photopolmerization
Andrzejewska E, et al.
Macromolecular Chemistry and Physics, 199(3), 441-449 (1998)
Fabrication and characterization of gold/acrylic polymer nanocomposites.
Burunkova J, et al.
European Polymer Journal null
Photopolymerization kinetics of dimethacrylates using the camphorquinone/amine initiator system
Cook WD
Polymer, 33(3), 600-609 (1992)

Articles

With dentists placing nearly 100 million dental fillings into patients′ teeth annually in the U.S. alone, polymeric composite restoratives account for a very large share of the biomaterials market.

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