739553
Poly(styrene-block-methyl methacrylate)
average Mn 32,000, block ratio of 2:1
Synonym(s):
PS-PMMA, block copolymer, Poly(b-methyl methacrylate-polystyrene), PS-block-PMMA, PS-PMMA
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About This Item
CAS Number:
UNSPSC Code:
12162002
form
solid
mol wt
average Mn 10,000 (PMMA)
average Mn 22,000 (polystyrene)
average Mn 32,000
transition temp
Tm 351-356 °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
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General description
22 kDa PS; 10 kDa PMMA; m ~200; n ~100
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
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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
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)
T Kinoshita
Shika zairyo, kikai = Journal of the Japanese Society for Dental Materials and Devices, 9(1), 86-101 (1990-01-01)
Methyl methacrylate (MMA)-p-styrene sulfonic acid copolymer (MS) was prepared and its adhesion to ground tooth substrates was evaluated. MS is crosslinked with Ca2+ supplied by hydroxyapatite in the smeared layer on the ground enamel and dentin, and sticks to their
A D Puckett et al.
Critical reviews in biomedical engineering, 28(3 - 4), 457-461 (2000-12-07)
Poly(methylmethacrylate) (PMMA) bone cements have been used for the fixation of hip and knee implants since the early 1960s. Aseptic loosening, related to fracture of the PMMA, continues to be the primary mode of failure for these prostheses. Failed prostheses
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