749184
Poly(styrene-block-methyl methacrylate)
average Mn 30,000, block ratio of 1:1
Synonym(s):
PS-block-PMMA, PS-PMMA
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About This Item
form
pellets
mol wt
average Mn 15,000 (PMMA), average Mn 15,000 (polystyrene), average Mn 30,000
transition temp
Tm 342-347 °C
Mw/Mn
<1.2
InChI
1S/C8H8.C5H8O2/c1-2-8-6-4-3-5-7-8;1-4(2)5(6)7-3/h2-7H,1H2;1H2,2-3H3
InChI key
ADFPJHOAARPYLP-UHFFFAOYSA-N
General description
15 kDa PS; 15 kDa PMMA; m ~143; n ~150
PS Mn = 15 ± 2 kg/mol
PMMA Mn = 15 ± 2 kg/mol
PDI of the overall block copolymer <1.2
PS molecular weight verified by SEC (taking an aliquot from the reaction mixture) and the PMMA molecular weight by NMR spectroscopy. The overall block copolymer molecular weight distribution would be determined by SEC.
PS Mn = 15 ± 2 kg/mol
PMMA Mn = 15 ± 2 kg/mol
PDI of the overall block copolymer <1.2
PS molecular weight verified by SEC (taking an aliquot from the reaction mixture) and the PMMA molecular weight by NMR spectroscopy. The overall block copolymer molecular weight distribution would be determined by SEC.
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signalword
Warning
hcodes
pcodes
Hazard Classifications
Eye Irrit. 2
Storage Class
13 - Non Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
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Articles
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M H Geiger et al.
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In a cadaver study, we prepared 29 paired human cadaver femora using 3 different broaches of identical geometry but different surface characteristics. In one group of 20 pairs, preparation with chipped-toothed broaches was compared to diamond-shaped broaches; in the other