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445746

Sigma-Aldrich

Poly(methyl methacrylate)

average Mw ~350,000 by GPC

Synonym(s):
PMMA, Poly(methacrylic acid methyl ester)
Linear Formula:
[CH2C(CH3)(CO2CH3)]n
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

form

powder

Quality Level

autoignition temp.

580 °F

mol wt

average Mw ~350,000 by GPC

reduced viscosity

150-160 cm3/g(20 °C)(lit.)

acid number

<1 mg KOH/g

transition temp

Tg (DSC) 105 °C (midpoint)

solubility

alcohols and aliphatic hydrocarbons: insoluble
esters, ketones, aromatics and glycol ethers: soluble

density

1.17 g/mL at 25 °C

InChI

1S/C5H9O2/c1-4(2)5(6)7-3/h1-3H3

InChI key

PMAMJWJDBDSDHV-UHFFFAOYSA-N

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1 of 4

This Item
182265200336182230
transition temp

Tg (DSC) 105 °C (midpoint)

transition temp

Tg (DSC) 105 °C (midpoint)

transition temp

Tg (DSC) 105 °C (midpoint)

transition temp

Tg (DSC) 105 °C (midpoint)

density

1.17 g/mL at 25 °C

density

1.200 g/cm3

density

1.200 g/cm3

density

1.188 g/mL at 25 °C

autoignition temp.

580 °F

autoignition temp.

580 °F

autoignition temp.

580 °F

autoignition temp.

580 °F

mol wt

average Mw ~350,000 by GPC

mol wt

-

mol wt

average Mw ~15,000 by GPC

mol wt

-

reduced viscosity

150-160 cm3/g(20 °C)(lit.)

reduced viscosity

-

reduced viscosity

-

reduced viscosity

-

General description

The thermal degradation behaviour of PMMA ( avg Mol. wt. ~350,000 g mol-1)was investigated in inert atmosphere, four weight loss steps were observed.

Application

PMMA (avg. Mol wt. ~350,000 g mol-1) containing Fe2O3 and TiO2 fillers have possible uses as flame retardants.
Pigment-wetting binder for coatings.

Features and Benefits

Contributes hardness, weather resistance, light fastness and resistance to chemicals.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Thermal degradation of poly (methyl methacrylate)(PMMA): modelling of DTG and TG curves.
Ferriol M., et al.
Polymer Degradation and Stability, 79(2), 271-281 (2003)
Influence of TiO2 and Fe2O3 fillers on the thermal properties of poly (methyl methacrylate)(PMMA).
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We evaluated the impact of pre-coating the tibial component with polymethylmethacrylate (PMMA) on implant survival in a cohort of 16 548 primary NexGen total knee replacements (TKRs) in 14 113 patients. In 13 835 TKRs a pre-coated tray was used
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