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Merck

749192

Sigma-Aldrich

Poly(styrene-block-methyl methacrylate)

average Mn 104,000, block ratio of 1:1

Synonym(e):

PS-block-PMMA, PS-PMMA

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About This Item

CAS-Nummer:
UNSPSC-Code:
12162002

Form

solid

Mol-Gew.

average Mn 104,000
average Mn 52,000 (PMMA)
average Mn 52,000 (polystyrene)

Übergangstemp.

Tm 345-350 °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

InChIKey

ADFPJHOAARPYLP-UHFFFAOYSA-N

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Allgemeine Beschreibung

57 kDa PS; 25 kDa PMMA; m ~494; n ~520
PS Mn = 57 ± 6 kg/mol
PMMA Mn = 25 ± 3 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.

Piktogramme

Exclamation mark

Signalwort

Warning

H-Sätze

Gefahreneinstufungen

Eye Irrit. 2

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable


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Die Dokumentenbibliothek aufrufen

M H Geiger et al.
Clinical orthopaedics and related research, (382)(382), 258-266 (2001-01-12)
This controlled study compared the strength and porosity of 48 polymethylmethacrylate cement-implant constructs prepared with open bowl versus vacuum mix technique. Forty-eight blast finished stainless steel rods of 13 mm diameter were implanted with centralizers into 17-mm inner diameter tubes
Novel fabrication of 2D and 3D inverted opals and their application.
Jae Ah Lee et al.
Small (Weinheim an der Bergstrasse, Germany), 7(18), 2581-2586 (2011-08-03)
F N K Kwong et al.
The Journal of bone and joint surgery. British volume, 88(1), 120-122 (2005-12-21)
The outcome of a cemented hip arthroplasty is partly dependent on the type of cement which is used. The production of an interface gap between the stem and the cement mantle as a result of shrinkage of the cement, may
S J Breusch et al.
Acta orthopaedica Scandinavica, 72(1), 29-35 (2001-05-01)
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
N Greene et al.
American journal of orthopedics (Belle Mead, N.J.), 27(3), 201-205 (1998-04-17)
In vitro studies of antibiotic elution from polymethylmethacrylate cement comparing Simplex (Howmedica, Rutherford, NJ) with Palacos brands (Richards, Memphis, TN) have shown variable results. This study compares the elution of tobramycin and vancomycin from Simplex and Palacos beads and spacers.

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